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Professional-Cloud-Network-Engineer Google Cloud Certified - Professional Cloud Network Engineer Questions and Answers

Questions 4

Question:

You are configuring the firewall endpoints as part of the Cloud Next Generation Firewall (Cloud NGFW) intrusion prevention service in Google Cloud. You have configured a threat prevention security profile, and you now need to create an endpoint for traffic inspection. What should you do?

Options:

A.

Attach the profile to the VPC network, create a firewall endpoint within the zone, and use a firewall policy rule to apply the L7 inspection.

B.

Create a firewall endpoint within the zone, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.

C.

Create a firewall endpoint within the region, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.

D.

Create a Private Service Connect endpoint within the zone, associate the endpoint to the VPC network, and use a firewall policy rule to apply the L7 inspection.

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Questions 5

Your organization recently re-architected your cloud environment to use Network Connectivity Center. However, an error occurred when you tried to add a new VPC named vpc-dev as a spoke. The error indicated that there was an issue with an existing spoke and the IP space of a VPC named vpc-pre-prod. You must complete the migration quickly and efficiently. What should you do?

Options:

A.

Remove the conflicting VPC spoke for vpc-pre-prod from the set of VPC spokes in Network Connectivity Center. Add the VPC spoke for vpc-dev. Add the previously removed vpc-pre-prod as a VPC spoke.

B.

Delete the VMs associated with the conflicting subnets, then delete the conflicting subnets in vpc-dev. Recreate the subnets with a new IP range and redeploy the previously deleted VMs in the new subnets. Add the VPC spoke for vpc-dev.

C.

Exclude the conflicting IP range by using the --exclude-export-ranges flag when creating the VPC spoke for vpc-dev.

D.

Exclude the conflicting IP range by using the --exclude-export-ranges flag in the hub when attaching the VPC spoke for vpc-dev.

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Questions 6

Your company has a Virtual Private Cloud (VPC) with two Dedicated Interconnect connections in two different regions: us-west1 and us-east1. Each Dedicated Interconnect connection is attached to a Cloud Router in its respective region by a VLAN attachment. You need to configure a high availability failover path. By default, all ingress traffic from the on-premises environment should flow to the VPC using the us-west1 connection. If us-west1 is unavailable, you want traffic to be rerouted to us-east1. How should you configure the multi-exit discriminator (MED) values to enable this failover path?

Options:

A.

Use regional routing. Set the us-east1 Cloud Router to a base priority of 100, and set the us-west1 Cloud Router to a base priority of 1

B.

Use global routing. Set the us-east1 Cloud Router to a base priority of 100, and set the us-west1 Cloud Router to a base priority of 1

C.

Use regional routing. Set the us-east1 Cloud Router to a base priority of 1000, and set the us-west1 Cloud Router to a base priority of 1

D.

Use global routing. Set the us-east1 Cloud Router to a base priority of 1000, and set the us-west1 Cloud Router to a base priority of 1

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Questions 7

Question:

Your organization has approximately 100 teams that need to manage their own environments. A central team must manage the network. You need to design a landing zone that provides separate projects for each team and ensure the solution can scale. What should you do?

Options:

A.

Configure VPC Network Peering and peer one of the VPCs to the service project.

B.

Configure Policy-based Routing for each team.

C.

Configure a Shared VPC and create a VPC network in the host project.

D.

Configure a Shared VPC, and create a VPC network in the service project.

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Questions 8

Your organization has Compute Engine instances in us-east1, us-west2, and us-central1. Your organization also has an existing Cloud Interconnect physical connection in the East Coast of the United States with a single VLAN attachment and Cloud Router in us-east1. You need to provide a design with high availability and ensure that if a region goes down, you still have access to all your other Virtual Private Cloud (VPC) subnets. You need to accomplish this in the most cost-effective manner possible. What should you do?

Options:

A.

Configure your VPC routing in regional mode.

Add an additional Cloud Interconnect VLAN attachment in the us-east1 region, and configure a Cloud Router in us-east1.

B.

Configure your VPC routing in global mode.

Add an additional Cloud Interconnect VLAN attachment in the us-east1 region, and configure a Cloud Router in us-east1.

C.

Configure your VPC routing in global mode.

Add an additional Cloud Interconnect VLAN attachment in the us-west2 region, and configure a Cloud Router in us-west2.

D.

Configure your VPC routing in regional mode.

Add additional Cloud Interconnect VLAN attachments in the us-west2 and us-central1 regions, and configure Cloud Routers in us-west2 and us-central1.

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Questions 9

You want to create a service in GCP using IPv6.

What should you do?

Options:

A.

Create the instance with the designated IPv6 address.

B.

Configure a TCP Proxy with the designated IPv6 address.

C.

Configure a global load balancer with the designated IPv6 address.

D.

Configure an internal load balancer with the designated IPv6 address.

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Questions 10

Your company is planning a migration to Google Kubernetes Engine. Your application team informed you that they require a minimum of 60 Pods per node and a maximum of 100 Pods per node Which Pod per node CIDR range should you use?

Options:

A.

/24

B.

/25

C.

/26

D.

/28

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Questions 11

You work for a multinational enterprise that is moving to GCP.

These are the cloud requirements:

• An on-premises data center located in the United States in Oregon and New York with Dedicated Interconnects connected to Cloud regions us-west1 (primary HQ) and us-east4 (backup)

• Multiple regional offices in Europe and APAC

• Regional data processing is required in europe-west1 and australia-southeast1

• Centralized Network Administration Team

Your security and compliance team requires a virtual inline security appliance to perform L7 inspection for URL filtering. You want to deploy the appliance in us-west1.

What should you do?

Options:

A.

• Create 2 VPCs in a Shared VPC Host Project.• Configure a 2-NIC instance in zone us-west1-a in the Host Project.• Attach NIC0 in VPC #1 us-west1 subnet of the Host Project.• Attach NIC1 in VPC #2 us-west1 subnet of the Host Project.• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

B.

• Create 2 VPCs in a Shared VPC Host Project.• Configure a 2-NIC instance in zone us-west1-a in the Service Project.• Attach NIC0 in VPC #1 us-west1 subnet of the Host Project.• Attach NIC1 in VPC #2 us-west1 subnet of the Host Project.• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

C.

• Create 1 VPC in a Shared VPC Host Project.• Configure a 2-NIC instance in zone us-west1-a in the Host Project.• Attach NIC0 in us-west1 subnet of the Host Project.• Attach NIC1 in us-west1 subnet of the Host Project• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

D.

• Create 1 VPC in a Shared VPC Service Project.• Configure a 2-NIC instance in zone us-west1-a in the Service Project.• Attach NIC0 in us-west1 subnet of the Service Project.• Attach NIC1 in us-west1 subnet of the Service Project• Deploy the instance.• Configure the necessary routes and firewall rules to pass traffic through the instance.

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Questions 12

You recently deployed Compute Engine instances in regions us-west1 and us-east1 in a Virtual Private Cloud (VPC) with default routing configurations. Your company security policy mandates that virtual machines (VMs) must not have public IP addresses attached to them. You need to allow your instances to fetch updates from the internet while preventing external access. What should you do?

Options:

A.

Create a Cloud NAT gateway and Cloud Router in both us-west1 and us-east1.

B.

Create a single global Cloud NAT gateway and global Cloud Router in the VPC.

C.

Change the instances’ network interface external IP address from None to Ephemeral.

D.

Create a firewall rule that allows egress to destination 0.0.0.0/0.

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Questions 13

Your company just completed the acquisition of Altostrat (a current GCP customer). Each company has a separate organization in GCP and has implemented a custom DNS solution. Each organization will retain its current domain and host names until after a full transition and architectural review is done in one year. These are the assumptions for both GCP environments.

• Each organization has enabled full connectivity between all of its projects by using Shared VPC.

• Both organizations strictly use the 10.0.0.0/8 address space for their instances, except for bastion hosts (for accessing the instances) and load balancers for serving web traffic.

• There are no prefix overlaps between the two organizations.

• Both organizations already have firewall rules that allow all inbound and outbound traffic from the 10.0.0.0/8 address space.

• Neither organization has Interconnects to their on-premises environment.

You want to integrate networking and DNS infrastructure of both organizations as quickly as possible and with minimal downtime.

Which two steps should you take? (Choose two.)

Options:

A.

Provision Cloud Interconnect to connect both organizations together.

B.

Set up some variant of DNS forwarding and zone transfers in each organization.

C.

Connect VPCs in both organizations using Cloud VPN together with Cloud Router.

D.

Use Cloud DNS to create A records of all VMs and resources across all projects in both organizations.

E.

Create a third organization with a new host project, and attach all projects from your company and Altostrat to it using shared VPC.

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Questions 14

Your company runs an enterprise platform on-premises using virtual machines (VMS). Your internet customers have created tens of thousands of DNS domains panting to your public IP addresses allocated to the Vtvls Typically, your customers hard-code your IP addresses In their DNS records You are now planning to migrate the platform to Compute Engine and you want to use Bring your Own IP you want to minimize disruption to the Platform What Should you d0?

Options:

A.

Create a VPC and request static external IP addresses from Google Cloud Assagn the IP addresses to the Compute Engine instances. Notify your customers of the new IP addresses so they can update their DNS

B.

Verify ownership of your IP addresses. After the verification, Google Cloud advertises and provisions the IP prefix for you_ Assign the IP addresses to the Compute Engine Instances

C.

Create a VPC With the same IP address range as your on-premises network Asson the IP addresses to the Compute Engine Instances.

D.

Verify ownership of your IP addresses. Use live migration to import the prefix Assign the IP addresses to Compute Engine instances.

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Questions 15

Your company has just launched a new critical revenue-generating web application. You deployed the application for scalability using managed instance groups, autoscaling, and a network load balancer as frontend. One day, you notice severe bursty traffic that the caused autoscaling to reach the maximum number of instances, and users of your application cannot complete transactions. After an investigation, you think it as a DDOS attack. You want to quickly restore user access to your application and allow successful transactions while minimizing cost.

Which two steps should you take? (Choose two.)

Options:

A.

Use Cloud Armor to blacklist the attacker’s IP addresses.

B.

Increase the maximum autoscaling backend to accommodate the severe bursty traffic.

C.

Create a global HTTP(s) load balancer and move your application backend to this load balancer.

D.

Shut down the entire application in GCP for a few hours. The attack will stop when the application is offline.

E.

SSH into the backend compute engine instances, and view the auth logs and syslogs to further understand the nature of the attack.

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Questions 16

Question:

You are configuring the final elements of a migration effort where resources have been moved from on-premises to Google Cloud. While reviewing the deployed architecture, you noticed that DNS resolution is failing when queries are being sent to the on-premises environment. You log in to a Compute Engine instance, try to resolve an on-premises hostname, and the query fails. DNS queries are not arriving at the on-premises DNS server. You need to use managed services to reconfigure Cloud DNS to resolve the DNS error. What should you do?

Options:

A.

Validate that the Compute Engine instances are using the Metadata Service IP address as their resolver. Configure an outbound forwarding zone for the on-premises domain pointing to the on-premises DNS server. Configure Cloud Router to advertise the Cloud DNS proxy range to the on-premises network.

B.

Validate that there is network connectivity to the on-premises environment and that the Compute Engine instances can reach other on-premises resources. If errors persist, remove the VPC Network Peerings and recreate the peerings after validating the routes.

C.

Review the existing Cloud DNS zones, and validate that there is a route in the VPC directing traffic destined to the IP address of the DNS servers. Recreate the existing DNS forwarding zones to forward all queries to the on-premises DNS servers.

D.

Ensure that the operating systems of the Compute Engine instances are configured to send DNS queries to the on-premises DNS servers directly.

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Questions 17

You created a VPC network named Retail in auto mode. You want to create a VPC network named Distribution and peer it with the Retail VPC.

How should you configure the Distribution VPC?

Options:

A.

Create the Distribution VPC in auto mode. Peer both the VPCs via network peering.

B.

Create the Distribution VPC in custom mode. Use the CIDR range 10.0.0.0/9. Create the necessary subnets, and then peer them via network peering.

C.

Create the Distribution VPC in custom mode. Use the CIDR range 10.128.0.0/9. Create the necessary subnets, and then peer them via network peering.

D.

Rename the default VPC as "Distribution" and peer it via network peering.

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Questions 18

You have provisioned a Dedicated Interconnect connection of 20 Gbps with a VLAN attachment of 10 Gbps. You recently noticed a steady increase in ingress traffic on the Interconnect connection from the on-premises data center. You need to ensure that your end users can achieve the full 20 Gbps throughput as quickly as possible. Which two methods can you use to accomplish this? (Choose two.)

Options:

A.

Configure an additional VLAN attachment of 10 Gbps in another region. Configure the on-premises router to advertise routes with the same multi-exit discriminator (MED).

B.

Configure an additional VLAN attachment of 10 Gbps in the same region. Configure the on-premises router to advertise routes with the same multi-exit discriminator (MED).

C.

From the Google Cloud Console, modify the bandwidth of the VLAN attachment to 20 Gbps.

D.

From the Google Cloud Console, request a new Dedicated Interconnect connection of 20 Gbps, and configure a VLAN attachment of 10 Gbps.

E.

Configure Link Aggregation Control Protocol (LACP) on the on-premises router to use the 20-Gbps Dedicated Interconnect connection.

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Questions 19

Your on-premises data center has 2 routers connected to your GCP through a VPN on each router. All applications are working correctly; however, all of the traffic is passing across a single VPN instead of being load-balanced across the 2 connections as desired.

During troubleshooting you find:

•Each on-premises router is configured with the same ASN.

•Each on-premises router is configured with the same routes and priorities.

•Both on-premises routers are configured with a VPN connected to a single Cloud Router.

•The VPN logs have no-proposal-chosen lines when the VPNs are connecting.

•BGP session is not established between one on-premises router and the Cloud Router.

What is the most likely cause of this problem?

Options:

A.

One of the VPN sessions is configured incorrectly.

B.

A firewall is blocking the traffic across the second VPN connection.

C.

You do not have a load balancer to load-balance the network traffic.

D.

BGP sessions are not established between both on-premises routers and the Cloud Router.

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Questions 20

You need to ensure your personal SSH key works on every instance in your project. You want to accomplish this as efficiently as possible.

What should you do?

Options:

A.

Upload your public ssh key to the project Metadata.

B.

Upload your public ssh key to each instance Metadata.

C.

Create a custom Google Compute Engine image with your public ssh key embedded.

D.

Use gcloud compute ssh to automatically copy your public ssh key to the instance.

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Questions 21

You have recently been put in charge of managing identity and access management for your organization. You have several projects and want to use scripting and automation wherever possible. You want to grant the editor role to a project member.

Which two methods can you use to accomplish this? (Choose two.)

Options:

A.

GetIamPolicy() via REST API

B.

setIamPolicy() via REST API

C.

gcloud pubsub add-iam-policy-binding Sprojectname --member user:Susername --role roles/editor

D.

gcloud projects add-iam-policy-binding Sprojectname --member user:Susername --role roles/editor

E.

Enter an email address in the Add members field, and select the desired role from the drop-down menu in the GCP Console.

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Questions 22

You are developing an HTTP API hosted on a Compute Engine virtual machine instance that must be invoked only by multiple clients within the same Virtual Private Cloud (VPC). You want clients to be able to get the IP address of the service. What should you do?

Options:

A.

Reserve a static external IP address and assign it to an HTTP(S) load balancing service's forwarding rule. Clients should use this IP address to connect to the service.

B.

Ensure that clients use Compute Engine internal DNS by connecting to the instance name with the url https://[INSTANCE_NAME].[ZONE] .c.[PROJECT_ID].internal/.

C.

Reserve a static external IP address and assign it to an HTTP(S) load balancing service's forwarding rule. Then, define an A record in Cloud DNS. Clients should use the name of the A record to connect to the service.

D.

Ensure that clients use Compute Engine internal DNS by connecting to the instance name with the url https://[API_NAME]/[API_VERSION] /.

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Questions 23

You need to configure the Border Gateway Protocol (BGP) session for a VPN tunnel you just created between two Google Cloud VPCs, 10.1.0.0/16 and 172.16.0.0/16. You have a Cloud Router (router-1) in the 10.1.0.0/16 network and a second Cloud Router (router-2) in the 172.16.0.0/16 network. Which configuration should you use for the BGP session?

Options:

A.

B.

C.

D.

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Questions 24

You have two Google Cloud projects in a perimeter to prevent data exfiltration. You need to move a third project inside the perimeter; however, the move could negatively impact the existing environment. You need to validate the impact of the change. What should you do?

Options:

A.

Enable Firewall Rules Logging inside the third project.

B.

Modify the existing VPC Service Controls policy to include the new project in dry run mode.

C.

Monitor the Resource Manager audit logs inside the perimeter.

D.

Enable VPC Flow Logs inside the third project, and monitor the logs for negative impact.

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Questions 25

Your company has separate Virtual Private Cloud (VPC) networks in a single region for two departments: Sales and Finance. The Sales department's VPC network already has connectivity to on-premises locations using HA VPN, and you have confirmed that the subnet ranges do not overlap. You plan to peer both VPC networks to use the same HA tunnels for on-premises connectivity, while providing internet connectivity for the Google Cloud workloads through Cloud NAT. Internet access from the on-premises locations should not flow through Google Cloud. You need to propagate all routes between the Finance department and on-premises locations. What should you do?

Options:

A.

Peer the two VPCs, and use the default configuration for the Cloud Routers.

B.

Peer the two VPCs, and use Cloud Router’s custom route advertisements to announce the peered VPC network ranges to the on-premises locations.

C.

Peer the two VPCs. Configure VPC Network Peering to export custom routes from Sales and import custom routes on Finance's VPC network. Use Cloud Router’s custom route advertisements to announce a default route to the on-premises locations.

D.

Peer the two VPCs. Configure VPC Network Peering to export custom routes from Sales and import custom routes on Finance's VPC network. Use Cloud Router’s custom route advertisements to announce the peered VPC network ranges to the on-premises locations.

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Questions 26

Question:

You are troubleshooting connectivity issues between Google Cloud and a public SaaS provider. Connectivity between the two environments is through the public internet. Your users are reporting intermittent connection errors when using TCP to connect; however, ICMP tests show no failures. According to users, errors occur around the same time every day. You want to troubleshoot and gather information by using Google Cloud tools that are most likely to provide insights into what is occurring within Google Cloud. What should you do?

Options:

A.

Create a Connectivity Test by using TCP, the source IP address of your test VM, and the destination IP address of the public SaaS provider. Review the live data plane analysis and take the next steps based on the test results.

B.

Enable and review Cloud Logging on your Cloud NAT gateway. Look for logs with errors matching the destination IP address of the public SaaS provider.

C.

Enable the Firewall insights API. Set the deny rule insights observation period to one day. Review the insights to assure there are no firewall rules denying traffic.

D.

Enable and review Cloud Logging for Cloud Armor. Look for logs with errors matching the destination IP address of the public SaaS provider.

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Questions 27

You just finished your company’s migration to Google Cloud and configured an architecture with 3 Virtual Private Cloud (VPC) networks: one for Sales, one for Finance, and one for Engineering. Every VPC contains over 100 Compute Engine instances, and now developers using instances in the Sales VPC and the Finance VPC require private connectivity between each other. You need to allow communication between Sales and Finance without compromising performance or security. What should you do?

Options:

A.

Configure an HA VPN gateway between the Finance VPC and the Sales VPC.

B.

Configure the instances that require communication between each other with an external IP address.

C.

Create a VPC Network Peering connection between the Finance VPC and the Sales VPC.

D.

Configure Cloud NAT and a Cloud Router in the Sales and Finance VPCs.

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Questions 28

You are migrating a three-tier application architecture from on-premises to Google Cloud. As a first step in the migration, you want to create a new Virtual Private Cloud (VPC) with an external HTTP(S) load balancer. This load balancer will forward traffic back to the on-premises compute resources that run the presentation tier. You need to stop malicious traffic from entering your VPC and consuming resources at the edge, so you must configure this policy to filter IP addresses and stop cross-site scripting (XSS) attacks. What should you do?

Options:

A.

Create a Google Cloud Armor policy, and apply it to a backend service that uses an unmanaged instance group backend.

B.

Create a hierarchical firewall ruleset, and apply it to the VPC's parent organization resource node.

C.

Create a Google Cloud Armor policy, and apply it to a backend service that uses an internet network endpoint group (NEG) backend.

D.

Create a VPC firewall ruleset, and apply it to all instances in unmanaged instance groups.

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Questions 29

You have deployed a new internal application that provides HTTP and TFTP services to on-premises hosts. You want to be able to distribute traffic across multiple Compute Engine instances, but need to ensure that clients are sticky to a particular instance across both services.

Which session affinity should you choose?

Options:

A.

None

B.

Client IP

C.

Client IP and protocol

D.

Client IP, port and protocol

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Questions 30

Question:

Your organization wants to seamlessly migrate a global external web application from Compute Engine to GKE. You need to deploy a simple, cloud-first solution that exposes both applications and sends 10% of the requests to the new application. What should you do?

Options:

A.

Configure a global external Application Load Balancer with a Service Extension that points to an application running in a VM, which controls which requests go to each application.

B.

Configure a global external Application Load Balancer with weighted traffic splitting.

C.

Configure two separate global external Application Load Balancers, and use Cloud DNS geolocation routing policies.

D.

Configure a global external Application Load Balancer with weighted request mirroring.

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Questions 31

Question:

Your organization is developing a landing zone architecture with the following requirements:

    No communication between production and non-production environments.

    Communication between applications within an environment may be necessary.

    Network administrators should centrally manage all network resources, including subnets, routes, and firewall rules.

    Each application should be billed separately.

    Developers of an application within a project should have the autonomy to create their compute resources.

    Up to 1000 applications are expected per environment.

What should you do?

Options:

A.

Create a design that has a Shared VPC for each project. Implement hierarchical firewall policies to apply micro-segmentation between VPCs.

B.

Create a design where each project has its own VPC. Ensure all VPCs are connected by a Network Connectivity Center hub that is centrally managed by the network team.

C.

Create a design that implements a single Shared VPC. Use VPC firewall rules with secure tags to enforce micro-segmentation between environments.

D.

Create a design that has one host project with a Shared VPC for the production environment, another host project with a Shared VPC for the non-production environment, and a service project that is associated with the corresponding host project for each initiative.

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Questions 32

You are trying to update firewall rules in a shared VPC for which you have been assigned only Network Admin permissions. You cannot modify the firewall rules. Your organization requires using the least privilege necessary.

Which level of permissions should you request?

Options:

A.

Security Admin privileges from the Shared VPC Admin.

B.

Service Project Admin privileges from the Shared VPC Admin.

C.

Shared VPC Admin privileges from the Organization Admin.

D.

Organization Admin privileges from the Organization Admin.

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Questions 33

You are configuring your Google Cloud environment to connect to your on-premises network. Your configuration must be able to reach Cloud Storage APIs and your Google Kubernetes Engine nodes across your private Cloud Interconnect network. You have already configured a Cloud Router with your Interconnect VLAN attachments. You now need to set up the appropriate router advertisement configuration on the Cloud Router. What should you do?

Options:

A.

Configure the route advertisement to the default setting.

B.

On the on-premises router, configure a static route for the storage API virtual IP address which points to the Cloud Router's link-local IP address.

C.

Configure the route advertisement to the custom setting, and manually add prefix 199.36.153.8/30 to the list of advertisements. Leave all other options as their default settings.

D.

Configure the route advertisement to the custom setting, and manually add prefix 199.36.153.8/30 to the list of advertisements. Advertise all visible subnets to the Cloud Router.

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Questions 34

Your organization has a hub and spoke architecture with VPC Network Peering, and hybrid connectivity is centralized at the hub. The Cloud Router in the hub VPC is advertising subnet routes, but the on-premises router does not appear to be receiving any subnet routes from the VPC spokes. You need to resolve this issue. What should you do?

Options:

A.

Create custom routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.

B.

Create custom learned routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.

C.

Create custom routes at the Cloud Router in the spokes to advertise the subnets of the VPC spokes.

D.

Create a BGP route policy at the Cloud Router, and ensure the subnets of the VPC spokes are being announced towards the on-premises environment.

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Questions 35

You are migrating to Cloud DNS and want to import your BIND zone file.

Which command should you use?

Options:

A.

gcloud dns record-sets import ZONE_FILE --zone MANAGED_ZONE

B.

gcloud dns record-sets import ZONE_FILE --replace-origin-ns --zone MANAGED_ZONE

C.

gcloud dns record-sets import ZONE_FILE --zone-file-format --zone MANAGED_ZONE

D.

gcloud dns record-sets import ZONE_FILE --delete-all-existing --zone MANAGED ZONE

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Questions 36

You are the network administrator responsible for hybrid connectivity at your organization. Your developer team wants to use Cloud SQL in the us-west1 region in your Shared VPC. You configured a Dedicated Interconnect connection and a Cloud Router in us-west1, and the connectivity between your Shared VPC and on-premises data center is working as expected. You just created the private services access connection required for Cloud SQL using the reserved IP address range and default settings. However, your developers cannot access the Cloud SQL instance from on-premises. You want to resolve the issue. What should you do?

Options:

A.

Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.

Create a custom route advertisement in your Cloud Router to advertise the Cloud SQL IP address range.

B.

Change the VPC routing mode to global.

Create a custom route advertisement in your Cloud Router to advertise the Cloud SQL IP address range.

C.

Create an additional Cloud Router in us-west2.

Create a new Border Gateway Protocol (BGP) peering connection to your on-premises data center.

Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.

D.

Change the VPC routing mode to global.

Modify the VPC Network Peering connection used for Cloud SQL, and enable the import and export of routes.

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Questions 37

You need to restrict access to your Google Cloud load-balanced application so that only specific IP addresses can connect.

What should you do?

Options:

A.

Create a secure perimeter using the Access Context Manager feature of VPC Service Controls and restrict access to the source IP range of the allowed clients and Google health check IP ranges.

B.

Create a secure perimeter using VPC Service Controls, and mark the load balancer as a service restricted to the source IP range of the allowed clients and Google health check IP ranges.

C.

Tag the backend instances "application," and create a firewall rule with target tag "application" and the source IP range of the allowed clients and Google health check IP ranges.

D.

Label the backend instances "application," and create a firewall rule with the target label "application" and the source IP range of the allowed clients and Google health check IP ranges.

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Questions 38

You need to configure a static route to an on-premises resource behind a Cloud VPN gateway that is configured for policy-based routing using the gcloud command.

Which next hop should you choose?

Options:

A.

The default internet gateway

B.

The IP address of the Cloud VPN gateway

C.

The name and region of the Cloud VPN tunnel

D.

The IP address of the instance on the remote side of the VPN tunnel

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Questions 39

You want to implement an IPSec tunnel between your on-premises network and a VPC via Cloud VPN. You need to restrict reachability over the tunnel to specific local subnets, and you do not have a device capable of speaking Border Gateway Protocol (BGP).

Which routing option should you choose?

Options:

A.

Dynamic routing using Cloud Router

B.

Route-based routing using default traffic selectors

C.

Policy-based routing using a custom local traffic selector

D.

Policy-based routing using the default local traffic selector

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Questions 40

You are designing a hybrid cloud environment. Your Google Cloud environment is interconnected with your on-premises network using HA VPN and Cloud Router in a central transit hub VPC. The Cloud Router is configured with the default settings. Your on-premises DNS server is located at 192.168.20.88. You need to ensure that your Compute Engine resources in multiple spoke VPCs can resolve on-premises private hostnames using the domain corp.altostrat.com while also resolving Google Cloud hostnames. You want to follow Google-recommended practices. What should you do?

Options:

A.

Create a private forwarding zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com that points to 192.168.20.88. Associate the zone with the hub VPC.

Create a private peering zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com associated with the spoke VPCs, with the hub VPC as the target.

Set a custom route advertisement on the Cloud Router for 35.199.192.0/19.

Configure VPC peering i

B.

Create a private forwarding zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com that points to 192.168.20.88.

Associate the zone with the hub VPC. Create a private peering zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com associated with the spoke PCs, with the hub VPC as the target.

Set a custom route advertisement on the Cloud Router for 35.199.192.0/19.

C.

Create a private forwarding zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com that points to 192.168.20.88. Associate the zone with the hub VPC.

Create a private peering zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com associated with the spoke VPCs, with the hub VPC as the target.

Set a custom route advertisement on the Cloud Router for 35.199.192.0/19.

Create a hub-and-spoke

D.

Create a private forwarding zone in Cloud DNS for ‘corp altostrat.com’ called corp-altostrat-com that points to 192. 168.20.88. Associate the zone with the hub VPC.

Create a private peering zone in Cloud DNS for ‘corp.altostrat.com’ called corp-altostrat-com associated with the spoke VPCs, with the hub VPC as the target.

Sat a custom route advertisement on the Cloud Router for 35.199.192.0/19.

Create a hub and spoke

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Questions 41

You are designing a hub-and-spoke network architecture for your company’s cloud-based environment. You need to make sure that all spokes are peered with the hub. The spokes must use the hub's virtual appliance for internet access.

The virtual appliance is configured in high-availability mode with two instances using an internal load balancer with IP address 10.0.0.5. What should you do?

Options:

A.

Create a default route in the hub VPC that points to IP address 10.0.0.5.

Delete the default internet gateway route in the hub VPC, and create a new higher-priority route that is tagged only to the appliances with a next hop of the default internet gateway.

Export the custom routes in the hub.

Import the custom routes in the spokes.

B.

Create a default route in the hub VPC that points to IP address 10.0.0.5.

Delete the default internet gateway route in the hub VPC, and create a new higher-priority route that is tagged only to the appliances with a next hop of the default internet gateway.

Export the custom routes in the hub. Import the custom routes in the spokes.

Delete the default internet gateway route of the spokes.

C.

Create two default routes in the hub VPC that point to the next hop instances of the virtual appliances.

Delete the default internet gateway route in the hub VPC, and create a new higher-priority route that is tagged only to the appliances with a next hop of the default internet gateway.

Export the custom routes in the hub. Import the custom routes in the spokes.

D.

Create a default route in the hub VPC that points to IP address 10.0.0.5.

Delete the default internet gateway route in the hub VPC, and create a new higher-priority route that is tagged only to the appliances with a next hop of the default internet gateway.

Create a new route in the spoke VPC that points to IP address 10.0.0.5.

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Questions 42

Your company's web server administrator is migrating on-premises backend servers for an application to GCP. Libraries and configurations differ significantly across these backend servers. The migration to GCP will be lift-and-shift, and all requests to the servers will be served by a single network load balancer frontend. You want to use a GCP-native solution when possible.

How should you deploy this service in GCP?

Options:

A.

Create a managed instance group from one of the images of the on-premises servers, and link this instance group to a target pool behind your load balancer.

B.

Create a target pool, add all backend instances to this target pool, and deploy the target pool behind your load balancer.

C.

Deploy a third-party virtual appliance as frontend to these servers that will accommodate the significant differences between these backend servers.

D.

Use GCP's ECMP capability to load-balance traffic to the backend servers by installing multiple equal-priority static routes to the backend servers.

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Questions 43

You are deploying an HA VPN within Google Cloud. You need to exchange routes dynamically between your on-premises gateway and Google Cloud. You have already created an HA VPN gateway and a peer VPN gateway resource. What should you do?

Options:

A.

Create a Cloud Router, add VPN tunnels, and then configure BGP sessions.

B.

Create a second HA VPN gateway, add VPN tunnels, and enable global dynamic routing.

C.

Create a Cloud Router, add VPN tunnels, and enable global dynamic routing.

D.

Create a Cloud Router, add VPN tunnels, and then configure static routes to your subnet ranges.

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Questions 44

You have ordered Dedicated Interconnect in the GCP Console and need to give the Letter of Authorization/Connecting Facility Assignment (LOA-CFA) to your cross-connect provider to complete the physical connection.

Which two actions can accomplish this? (Choose two.)

Options:

A.

Open a Cloud Support ticket under the Cloud Interconnect category.

B.

Download the LOA-CFA from the Hybrid Connectivity section of the GCP Console.

C.

Run gcloud compute interconnects describe .

D.

Check the email for the account of the NOC contact that you specified during the ordering process.

E.

Contact your cross-connect provider and inform them that Google automatically sent the LOA/CFA to them via email, and to complete the connection.

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Questions 45

Question:

Your organization has a hub and spoke architecture with VPC Network Peering, and hybrid connectivity is centralized at the hub. The Cloud Router in the hub VPC is advertising subnet routes, but the on-premises router does not appear to be receiving any subnet routes from the VPC spokes. You need to resolve this issue. What should you do?

Options:

A.

Create custom learned routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.

B.

Create custom routes at the Cloud Router in the spokes to advertise the subnets of the VPC spokes.

C.

Create a BGP route policy at the Cloud Router, and ensure the subnets of the VPC spokes are being announced towards the on-premises environment.

D.

Create custom routes at the Cloud Router in the hub to advertise the subnets of the VPC spokes.

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Questions 46

You create a Google Kubernetes Engine private cluster and want to use kubectl to get the status of the pods. In one of your instances you notice the master is not responding, even though the cluster is up and running.

What should you do to solve the problem?

Options:

A.

Assign a public IP address to the instance.

B.

Create a route to reach the Master, pointing to the default internet gateway.

C.

Create the appropriate firewall policy in the VPC to allow traffic from Master node IP address to the instance.

D.

Create the appropriate master authorized network entries to allow the instance to communicate to the master.

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Questions 47

You have an application hosted on a Compute Engine virtual machine instance that cannot communicate with a resource outside of its subnet. When you review the flow and firewall logs, you do not see any denied traffic listed.

During troubleshooting you find:

• Flow logs are enabled for the VPC subnet, and all firewall rules are set to log.

• The subnetwork logs are not excluded from Stackdriver.

• The instance that is hosting the application can communicate outside the subnet.

• Other instances within the subnet can communicate outside the subnet.

• The external resource initiates communication.

What is the most likely cause of the missing log lines?

Options:

A.

The traffic is matching the expected ingress rule.

B.

The traffic is matching the expected egress rule.

C.

The traffic is not matching the expected ingress rule.

D.

The traffic is not matching the expected egress rule.

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Questions 48

You have a storage bucket that contains two objects. Cloud CDN is enabled on the bucket, and both objects have been successfully cached. Now you want to make sure that one of the two objects will not be cached anymore, and will always be served to the internet directly from the origin.

What should you do?

Options:

A.

Ensure that the object you don’t want to be cached anymore is not shared publicly.

B.

Create a new storage bucket, and move the object you don’t want to be checked anymore inside it. Then edit the bucket setting and enable the private attribute.

C.

Add an appropriate lifecycle rule on the storage bucket containing the two objects.

D.

Add a Cache-Control entry with value private to the metadata of the object you don’t want to be cached anymore. Invalidate all the previously cached copies.

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Questions 49

Your organization has a Google Cloud Virtual Private Cloud (VPC) with subnets in us-east1, us-west4, and europe-west4 that use the default VPC configuration. Employees in a branch office in Europe need to access the resources in the VPC using HA VPN. You configured the HA VPN associated with the Google Cloud VPC for your organization with a Cloud Router deployed in europe-west4. You need to ensure that the users in the branch office can quickly and easily access all resources in the VPC. What should you do?

Options:

A.

Create custom advertised routes for each subnet.

B.

Configure each subnet’s VPN connections to use Cloud VPN to connect to the branch office.

C.

Configure the VPC dynamic routing mode to Global.

D.

Set the advertised routes to Global for the Cloud Router.

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Questions 50

You have the following Shared VPC design VPC Flow Logs is configured for Subnet-1 In the host VPC. You also want to monitor flow logs for Subnet-2. What should you do?

Options:

A.

Configure a firewall rule to permit Subnet-2 IP addresses outbound in the host protect VPC.

B.

Configure Packet Mirroring in both the host and service project VPCs.

C.

Configure a VPC Flow Logs filter for Subnet-2 in the host project VPC.

D.

Configure VPC Flow Logs in the service project VPC for Subnet-2.

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Questions 51

You want to use Partner Interconnect to connect your on-premises network with your VPC. You already have an Interconnect partner.

What should you first?

Options:

A.

Log in to your partner’s portal and request the VLAN attachment there.

B.

Ask your Interconnect partner to provision a physical connection to Google.

C.

Create a Partner Interconnect type VLAN attachment in the GCP Console and retrieve the pairing key.

D.

Run gcloud compute interconnect attachments partner update / -- region --admin-enabled.

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Questions 52

You are using the gcloud command line tool to create a new custom role in a project by coping a predefined role. You receive this error message:

INVALID_ARGUMENT: Permission resourcemanager.projects.list is not valid

What should you do?

Options:

A.

Add the resourcemanager.projects.get permission, and try again.

B.

Try again with a different role with a new name but the same permissions.

C.

Remove the resourcemanager.projects.list permission, and try again.

D.

Add the resourcemanager.projects.setIamPolicy permission, and try again.

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Questions 53

You are designing a new global application using Compute Engine instances that will be exposed by a global HTTP(S) load balancer. You need to secure your application from distributed denial-of-service and application layer (layer 7) attacks. What should you do?

Options:

A.

Configure VPC Service Controls and create a secure perimeter. Define fine-grained perimeter controls and enforce that security posture across your Google Cloud services and projects.

B.

Configure a Google Cloud Armor security policy in your project, and attach it to the backend service to secure the application.

C.

Configure VPC firewall rules to protect the Compute Engine instances against distributed denial-of-service attacks.

D.

Configure hierarchical firewall rules for the global HTTP(S) load balancer public IP address at the organization level.

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Questions 54

You are planning to use Terraform to deploy the Google Cloud infrastructure for your company The design must meet the following requirements

• Each Google Cloud project must represent an Internal project that your team Will work on

• After an internal project is finished, the infrastructure must be deleted

• Each Internal project must have Its own Google Cloud project owner to manage the Google Cloud resources-

• You have 10-100 projects deployed at a time,

While you are writing the Terraform code, you need to ensure that the deployment IS Simple, and the code IS reusable With

centralized management What should you doo

Options:

A.

Create a Single pt0Ject and additional VPCs for each Internal project

B.

Create a Single Project and Single VPC for each internal project

C.

Create a single Shared VPC and attach each Google Cloud project as a service project

D.

Create a Shared VPC and service project for each Internal project

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Questions 55

You work for a university that is migrating to GCP.

These are the cloud requirements:

• On-premises connectivity with 10 Gbps

• Lowest latency access to the cloud

• Centralized Networking Administration Team

New departments are asking for on-premises connectivity to their projects. You want to deploy the most cost-efficient interconnect solution for connecting the campus to Google Cloud.

What should you do?

Options:

A.

Use Shared VPC, and deploy the VLAN attachments and Interconnect in the host project.

B.

Use Shared VPC, and deploy the VLAN attachments in the service projects. Connect the VLAN attachment to the Shared VPC's host project.

C.

Use standalone projects, and deploy the VLAN attachments in the individual projects. Connect the VLAN attachment to the standalone projects' Interconnects.

D.

Use standalone projects and deploy the VLAN attachments and Interconnects in each of the individual projects.

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Questions 56

Your team deployed two applications in GKE that are exposed through an external Application Load Balancer. When queries are sent to www.mountkirkgames.com/sales and www.mountkirkgames.com/get-an-analysis, the correct pages are displayed. However, you have received complaints that www.mountkirkgames.com yields a 404 error. You need to resolve this error. What should you do?

Options:

A.

Review the Ingress YAML file. Define the default backend. Reapply the YAML.

B.

Review the Ingress YAML file. Add a new path rule for the * character that directs to the base service. Reapply the YAML.

C.

Review the Service YAML file. Define a default backend. Reapply the YAML.

D.

Review the Service YAML file. Add a new path rule for the * character that directs to the base service. Reapply the YAML.

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Questions 57

You need to establish network connectivity between three Virtual Private Cloud networks, Sales, Marketing, and Finance, so that users can access resources in all three VPCs. You configure VPC peering between the Sales VPC and the Finance VPC. You also configure VPC peering between the Marketing VPC and the Finance VPC. After you complete the configuration, some users cannot connect to resources in the Sales VPC and the Marketing VPC. You want to resolve the problem.

What should you do?

Options:

A.

Configure VPC peering in a full mesh.

B.

Alter the routing table to resolve the asymmetric route.

C.

Create network tags to allow connectivity between all three VPCs.

D.

Delete the legacy network and recreate it to allow transitive peering.

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Questions 58

You recently deployed Cloud VPN to connect your on-premises data center to Google Cloud. You need to monitor the usage of this VPN and set up alerts in case traffic exceeds the maximum allowed. You need to be able to quickly decide whether to add extra links or move to a Dedicated Interconnect. What should you do?

Options:

A.

In the Monitoring section of the Google Cloud console, use the Dashboard section to select a default dashboard for VPN usage.

B.

In Network Intelligence Center, check for the number of packet drops on the VPN.

C.

In the VPN section of the Google Cloud console, select the VPN under hybrid connectivity and then select monitoring to display utilization on the dashboard.

D.

In the Google Cloud console, use Monitoring Query Language to create a custom alert for bandwidth utilization.

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Questions 59

Your organization is deploying a single project for 3 separate departments. Two of these departments require network connectivity between each other, but the third department should remain in isolation. Your design should create separate network administrative domains between these departments. You want to minimize operational overhead.

How should you design the topology?

Options:

A.

Create a Shared VPC Host Project and the respective Service Projects for each of the 3 separate departments.

B.

Create 3 separate VPCs, and use Cloud VPN to establish connectivity between the two appropriate VPCs.

C.

Create 3 separate VPCs, and use VPC peering to establish connectivity between the two appropriate VPCs.

D.

Create a single project, and deploy specific firewall rules. Use network tags to isolate access between the departments.

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Questions 60

You need to create the technical architecture for hybrid connectivity from your data center to Google Cloud This will be managed by a partner. You want to follow Google-recommended practices for production-level applications. What should you do?

Options:

A.

Ask the partner to install two security appliances in the data center. Configure one VPN connection from each of these devices to Google

Cloud, and ensure that the VPN devices on-premises are in separate racks on separate power and cooling systems.

B.

Configure two Partner Interconnect connections in one metropolitan area (metro). Make sure the Interconnect connections are placed in

different metro edge availability domains. Configure two VLAN attachments in a single region, and configure regional dynamic routing on

the VPC

C.

Configure two Partner Interconnect connections in one metro and two connections in another metro Make sure the Interconnect

connections are placed in different metro edge availability domains. Configure two VLAN attachments in one region and two VLAN

attachments in another region, and configure global dynamic routing on the VPC

D.

Configure two Partner Interconnect connections in one metro and two connections in another metro. Make sure the Interconnect connections are placed in different metro edge availability domains. Configure two VLAN attachments in one region and two VLAN attachments in another region, and configure regional dynamic routing on the VPC.

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Questions 61

Question:

Your multi-region VPC has had a long-standing HA VPN configured in "region 1" connected to your corporate network. You are planning to add two 10 Gbps Dedicated Interconnect connections and VLAN attachments in "region 2" to connect to the same corporate network. You need to plan for connectivity between your VPC and corporate network to ensure that traffic uses the Dedicated Interconnect connections as the primary path and the HA VPN as the secondary path. What should you do?

Options:

A.

Enable regional dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in "region 1" to use a base priority value of 100. Configure BGP associated with the VLAN attachments to use a base priority of 20000. Configure your on-premises routers to use similar multi-exit discriminator (MED) values.

B.

Enable global dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in "region 1" to use a base priority value of 100. Configure BGP associated with the VLAN attachments to use a base priority of 20000. Configure your on-premises routers to use similar multi-exit discriminator (MED) values.

C.

Enable regional dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in "region 1" to use a base priority value of 20000. Configure BGP associated with the VLAN attachments to use a base priority of 100. Configure your on-premises routers to use similar multi-exit discriminator (MED) values.

D.

Enable global dynamic routing mode on the VPC. Configure BGP associated with the HA VPN in "region 1" to use a base priority value of 20000. Configure BGP associated with the VLAN attachments to use a base priority of 100. Configure your on-premises routers to use similar multi-exit discriminator (MED) values.

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Questions 62

Your end users are located in close proximity to us-east1 and europe-west1. Their workloads need to communicate with each other. You want to minimize cost and increase network efficiency.

How should you design this topology?

Options:

A.

Create 2 VPCs, each with their own regions and individual subnets. Create 2 VPN gateways to establish connectivity between these regions.

B.

Create 2 VPCs, each with their own region and individual subnets. Use external IP addresses on the instances to establish connectivity between these regions.

C.

Create 1 VPC with 2 regional subnets. Create a global load balancer to establish connectivity between the regions.

D.

Create 1 VPC with 2 regional subnets. Deploy workloads in these subnets and have them communicate using private RFC1918 IP addresses.

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Questions 63

You are designing a Partner Interconnect hybrid cloud connectivity solution with geo-redundancy across two metropolitan areas. You want to follow Google-recommended practices to set up the following region/metro pairs:

(region 1/metro 1)

(region 2/metro 2)

What should you do?

Options:

A.

Create a Cloud Router in region 1 with two VLAN attachments connected to metro1-zone1-x.

Create a Cloud Router in region 2 with two VLAN attachments connected to metro1-zone2-x.

B.

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone1-x.

Create a Cloud Router in region 2 with two VLAN attachments connected to metro2-zone2-x.

C.

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone2-x.

Create a Cloud Router in region 2 with one VLAN attachment connected to metro2-zone2-x.

D.

Create a Cloud Router in region 1 with one VLAN attachment connected to metro1-zone1-x and one VLAN attachment connected to metro1-zone2-x.

Create a Cloud Router in region 2 with one VLAN attachment connected to metro2-zone1-x and one VLAN attachment to metro2-zone2-x.

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Questions 64

You are in the process of deploying an internal HTTP(S) load balancer for your web server virtual machine (VM) Instances What two prerequisite tasks must be completed before creating the load balancer?

Choose 2 answers

Options:

A.

Choose a region.

B.

Create firewall rules for health checks

C.

Reserve a static IP address for the load balancer

D.

Determine the subnet mask for a proxy-only subnet.

E.

Determine the subnet mask for Serverless VPC Access.

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Exam Name: Google Cloud Certified - Professional Cloud Network Engineer
Last Update: Nov 24, 2024
Questions: 215
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