NSE7_EFW-7.2 Fortinet NSE 7 - Enterprise Firewall 7.2 Questions and Answers

The Virtual Router Redundancy Protocol (VRRP) configuration in the exhibit indicates that 10.1.5.254 is set as the virtual IP (VRIP), commonly serving as the default gateway for the internal network (A). Withvrrp-virtual-macenabled, both FortiGates would use the same virtual MAC address, ensuring a seamless transition during failover (B). The VRRP domain does not use the physical MAC address (C), and the priority settings indicate that FortiGate-A would be the primary router by default due to its higher priority (D).

Given the network diagram and the presence of two FortiGate devices, the Fortinet Gate Clustering Protocol (FGCP) in active-passive mode is the most appropriate for setting up a FortiGate cluster. FGCP supports high availability configurations and is designed to allow one FortiGate to seamlessly take over if the other fails, providing continuous network availability. This is supported by Fortinet documentation for high availability configurations using FGCP.

Bidirectional Forwarding Detection (BFD) is a rapid protocol for detecting failures in the forwarding path between two adjacent routers, including interfaces, data links, and forwarding planes. BFD is designed to detect forwarding path failures in a very short amount of time, often less than one second, which is significantly faster than traditional failure detection mechanisms like hold-down timers in routing protocols.

Fortinet supports BFD for BGP, and it can be used over multiple hops, which allows the detection of failures even if the BGP peers are not directly connected. This functionality enhances the ability to maintain stable BGP sessions over a wider network topology and is documented in Fortinet's guides.

BFD (Bidirectional Forwarding Detection) is a protocol that can quickly detect failures in the forwarding path between two adjacent devices. You can disable BFD at the protocol level by using the “set bfd disable” command under the OSPF or BGP configuration. BFD works for both OSPF and BGP protocols, as well as static routes and SD-WAN rules. References := BFD | FortiGate / FortiOS 7.2.0 - Fortinet Document Library, section “BFD”.

The configuration output shows various global settings for a FortiGate device. The terms NP (Network Processor) and CP (Content Processor) relate to FortiGate's hardware acceleration features. However, the provided configuration output does not directly mention the status (enabled or disabled) of NPs and CPs. Typically, the command to disable or enable hardware acceleration features would specifically mention NP or CP in the command syntax. Therefore, based on the output provided, we cannot conclusively determine the status of NPs and CPs, hence option D is the closest answer since the output does not confirm that they are enabled.

References:

• FortiOS Handbook - CLI Reference for FortiOS 5.2

 Fail-open is a feature that allows traffic to pass through the IPS sensor without inspection when the sensor fails or is overloaded. If fail-open is set to disable, traffic will be dropped in such scenarios1. References: = IPS | FortiGate / FortiOS 7.2.3 - Fortinet Documentation

When IPS (Intrusion Prevention System) is configured, iffail-openis set to disable, it means that if the IPS engine fails, traffic will not be allowed to pass through, which can result in traffic being dropped (D). This is in contrast to a fail-open setting, which would allow traffic to bypass the IPS engine if it is not operational.

C. The hub adds routes based on IKE negotiations: This is part of the ADVPN functionality where the hub learns about the networks behind the spokes and can add routes dynamically based on the IKE negotiations with the spokes.

D. You must configure phase 2 quick mode selectors to 0.0.0.0 0.0.0.0: This wildcard setting in the phase 2 selectors allows any-to-any tunnel establishment, which is necessary for the dynamic creation of spoke-to-spoke tunnels.

These configurations are outlined in Fortinet's documentation for setting up ADVPN, where the hub's role in route control and the use of wildcard selectors for phase 2 are emphasized to enable dynamic tunneling between spokes.

The access to www.facebook.com is blocked based on the URL Filter configuration.  In the exhibit, it shows that the URL “www.facebook.com” is specifically set to “Block” under the URL Filter section 1. References := Fortigate: How to configure Web Filter function on Fortigate, Web filter | FortiGate / FortiOS 7.0.2 | Fortinet Document Library, FortiGate HTTPS web URL filtering … - Fortinet … - Fortinet Community

• Option A is correct because the address object on the tool FortiGate will not be synchronized with the downstream devices if it has fabric-object set to disable. This option controls whether the address object is shared with other FortiGate devices in the Security Fabric or not1.
• Option C is correct because the downstream FortiGate will not receive the address object from the tool FortiGate if it has fabric-object-unification set to local. This option controls whether the downstream FortiGate uses the address objects from the root FortiGate or its own local address objects2.
• Option B is incorrect because the root FortiGate has configuration-sync set to enable by default, which means that it will synchronize the address objects with the downstream devices unless they are disabled by the fabric-object option3.
• Option D is incorrect because the downstream FortiGate has configuration-sync set to local by default, which means that it will receive the address objects from the root FortiGate unless they are overridden by the fabric-object-unification option4. References: =
• 1: Group address objects synchronized from FortiManager5
• 2: Security Fabric address object unification6
• 3: Configuration synchronization7
• 4: Configuration synchronization7
• : Security Fabric - Fortinet Documentation

From the OSPF interface command output, we can conclude that the port3 network has more than one OSPF router because the Neighbor Count is 2, indicating the presence of another OSPF router besides NGFW-1. Additionally, we can deduce that the interfaces of the OSPF routers match the MTU value configured as 1500, which is necessary for OSPF neighbors to form adjacencies. The MTU mismatch would prevent OSPF from forming a neighbor relationship.

References:

• Fortinet FortiOS Handbook: OSPF Configuration

To block the advertisement of the 10.1.10.0 prefix in OSPF, you can configure a distribute-list-out or a route-map out. A distribute-list-out is used to filter outgoing routing updates from being advertised to OSPF neighbors1. A route-map out can also be used for filtering and is applied to outbound routing updates2. References := Technical Tip: Inbound route filtering in OSPF usi … - Fortinet Community, OSPF | FortiGate / FortiOS 7.2.2 - Fortinet Documentation

For improving reliability over a lossy IPSec tunnel, the fragmentation and fragmentation-mtu parameters should be configured. In scenarios where there might be issues with packet size or an unreliable network, setting the IPsec phase 1 to allow for fragmentation will enable large packets to be broken down, preventing them from being dropped due to size or poor network quality. The fragmentation-mtu specifies the size of the fragments. This is aligned with Fortinet's recommendations for handling IPsec VPN over networks with potential packet loss or size limitations.