In order to distinguish between different users and provide different network services on the AP. Which of the following can be configured through configuration? ()
For the Versatile Routing Platform (VRP), the login timeout period can be set only on a VTY interface.
Which stage in the life cycle of campus network construction is the beginning of a project? ()
As shown in the figure. If host A has the ARp cache table of host B, then host A can ping host B. ()(True or False)
In the MAC address table of the switch, which of the following entries will not age?
According to the following configuration, which statement is correct? () (Multiple Choice Questions)
Int g0/0/1
Int g0/0/2
Port hybrid pvid vlan 20
Port hybrid pvid vlan 10
Port hybrid untagged vlan 10 20
Port hybrid untagged vlan 10 20
The following rules exist in an ACL of a router. Rule deny top source192.168, 1.00.0.0.255 destination 172.16.10.1 0.0.0.0 destination-port eq 21 is the correct statement? ()
As shown in the following figure, in the switching network, all switches are running the stp protocol. When the topology is stable, which of the following switches can be used to modify the BPDU sending cycle. Can it affect the SWD configuration BPDU sending cycle? () (Single-choice question)
As shown in the figure, if the command ping 10.1.1.2 is executed on R1, the data frame of VLAN 10 received from LSW2 by LSW1 is tagged. ()(True or False)
Protocol Priority Switch A. and Switch B. adopt LACP mode link aggregation, and all interfaces join the link aggregation group. At the same time, set the maximum number of active ports to 3. Then which port of switch A is not an active port? ()
When a company's network management needs to plan the network, the data packets that allow PC1 to access PC2 go through the G0/0/0 port (G0/0/2 on the picture). The data packet that PC2 accesses to PC1 goes from port G0/0/4 (G0/0/0 in the picture). () (Single-choice question)
The NAT configuration is as follows, which IP can be converted when accessing the public network (RTA) acl2000 (RTA-acl-basic-2000) rule5 permit source 192.168.1.00.0.0.255 RTA-acl-basic-2000) rule 10 deny source 192.168. 1.30
(RTA-acl-basic-2000) quit RTA) interface serial1/0/0 (RTA-Serial1/0/0) nat outbounD.2000*
Which of the following parameters cannot be used for advanced access control lists? ()
Network equipment running the SNMP protocol can take the initiative to report alarm information so that network administrators can find faults in time. ()
In RSTP, an edge port becomes a common STP port after receiving a configuration BPDU.
When the ACL in the following figure is configured on a Telnet server, only the device with an IP address of 172.16.105.2 can remotely log in to the Telnet server.
bash
Copy code
acl number 2000
rule 5 permit source 172.16.105.2 0
In the network as shown in the figure below, host A logs in to router A through Telnet. Then obtains the configuration file of router B through FTP on the remote interface. At this time, how many TCP connections does router A have? () (Single-choice question)
Complete the ACL configuration shown in the figure on the router RTA. Which of the following descriptions is correct? () (Single-choice question)
(RTA) acl 2001
(RTA-acl-basic-2001) rule 20 permit source 20.1.1.0 0.0.0.255
［RTA-acl-basic-2001］rule 10 deny source 20.1.1.0 0.0.0.255
The protocol uses the P/A. mechanism to speed up the upstream port's transition to the Forwarding state, but what is the reason for no temporary loop? ()
Refer to the graphic, 00e0-fc99-9999 is a specific host MAC address learned by a switch through ARP, and the host changes the IP address three times.
When the router is powered on, it will read the configuration file from the default storage path to initialize the router. If there is no configuration file in the default storage path, what will the router use for initialization? ()
Telnetlib is a module that implements the Telnet protocol that comes with Python ()
As shown in the figure, is the description of this network topology correct? () (Single-choice question)
In the VRP interface, use the command startup saved-confi guration backup.cfg. Configure the backup.cfg file to be used at the next startup. ()
In the broadcast network as shown in the figure, 0SPF runs on four routers. And in the same area. The same network segment. SPF will automatically elect one DR and multiple BDRs to achieve a better backup effect. ()(True or False)
The router needs to modify the destination IP address in the data packet when forwarding the data packet. ()
Using the command mkdirtest in the VRP operating platform, the system will create a directory named test. ()
Regarding the configuration shown in the figure, which statement is correct? () (Single-choice question)
Which of the following statements about IPv6 RA. and RS messages are correct? ()
Which of the following IEEE802.11 standards support operation in the 5GHz frequency band? ()
The network shown in the figure below. Host A is not configured with a gateway, and Host B has the ARP cache of the gateway. Which of the following statements are correct? () (Multiple Choice Question) The answer describes the address wrong
On VRP, the command lines are classified into four levels in increasing priority: Visit level, Monitoring level, Configuration level, and Management level. At which level, the operator is permitted to configure service but is not permitted to operate the file system?
From a security perspective, router A refuses to receive OSPF packets. ICMP packets received from the cO/0/1 interface. Which of the following commands can achieve this requirement? ()
In the STP protocol, which of the following factors will affect the election of the root switch? ()*
Which of the following messages is used for IPv6 stateless address autoconfiguration? ()*
Refer to the following configuration of an interface on a switch. What is the PVID of the interface?
interface GigabitEthernet0/0/1
port hybrid tagged vlan 2 to 3 100
port hybrid untagged vlan 4 6
Management Information Base (MIB) Information Base) is a virtual database, this database only exists on NMS. ()
The classic network forwarding method is based on router routing table forwarding. The forwarding method of OpenFlow switches is based on flow table forwarding. Which of these two forwarding methods are correct? ()*
Which of the following attributes cannot be used as a parameter to measure C0st? ()
With what kind of routers does a DRother router exchange link state information and route information?
Which of the following statements about the election of DR and BDR are correct? ()*
The output information of a certain router is shown in the figure. Which of the following statements are correct? () (Multiple Choice Questions)
Compared with STP, which of the following port roles are newly defined in RSTP? ()*
In the following figure, all links are Ethernet links, and all interfaces on the routers are running OSPF. Given this, how many DRs will be elected on this network?
Which of the following parameters need to be considered when electing a root port in STP? ()*
On the Huawei VRP, what is the default preference of different route types, in descending order?
Is there any correct statement about the shortcut keys of the VRP operating platform? ()*
Which of the following IEEE802.11 standards does not support the 5GHz frequency band for communication? ()
As shown in the figure below, all hosts can communicate normally. Is the correspondence between the MAC address and the port in the MAC address table of SWB correct? () (Single-choice question)
During STP calculation, the port cost is associated with the port bandwidth by default. Which of the following statements about the relationship between port cost and port bandwidth is true?
The transmission rate of the Eth-Truk port in manual link aggregation mode is related to ().*
If the IP address of a host in the LAN is 192.168.1.1/30, which of the following IP addresses will be processed by the host as the destination address of the IP packet? ()*
VLAN 4095 is reserved for system use and VLAN 1 cannot be deleted on Huawei switches.
The output information of the sub-interface of a router aggregate port 1 is shown in the figure. Based on this information, which of the following statements are correct? ()
In the following figure, after the OSPF routers converge, in which state is the OSPF neighbor relationship between Router B and Router C?
Router A. and Router B are established OSPF neighbor relationship, the OSPF process number of router A. is 1, and the area number is 0. Which of the following configurations on router A can enable router B to obtain the route of the network segment where host A is located? ()
To ensure that the same data flow is forwarded on the same physical link, which load sharing method does the Eth-Trunk adopt? ()
Network Address and Port Translation (NAPT) allows multiple private IP addresses to be mapped to the same public IP address through different port numbers. Which of the following statements about port numbers in NAPT is true?
Which of the following statements about Iv6 address configuration are correct? ()*
As shown in the figure, the host has ARP cache. Host A sends a data packet to host B. Which of the following are the destination MAC address and destination IP address of the data packet?
The administrator cannot log in to the Huawei router through Telnett, but other administrators can log in normally, so which of the following are the possible reasons? ()*
The output information of a certain switch is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
Link aggregation is a common technology in enterprise networks. Which of the following descriptions are the advantages of link aggregation technology? ()*
Which of the following descriptions about OSPF's DD. packets and LSA. is correct ()*
Refer to the following commands run on GigabitEthernet0/0/1 and GigabitEthernet0/0/2. Which of the following statements are true?
Which of the following statements about RA. and RS messages in IPv6 are correct? ()*
The router ID of the OSPF-enabled router must be the same as the IP address of an interface on the router.
The switch becomes a logical switch after stacking and clustering, and Eth-Trunk across physical devices can be deployed to improve network reliability. ()
Which of the following statements about the edge port in the RSTP protocol is correct? ()
In the WLAN network architecture, terminal devices that support the 802.11 standard are called? ()
In a broad sense, the transmission medium that constitutes the wireless local area network wlan does not include? ()
What kind of message does the DHCP server use to confirm that the host can use the IP address? ()
The last option field (option) of 1Pv4 is variable-length optional information. What is the maximum length of this field? ()
VRP operating platform, which of the following commands can only view static routes? ()
When the switch port receives a data frame that does not carry VLAN TAG, it must add PVID. ()
Static NAT can only achieve one-to-one mapping between private addresses and public addresses ()
The correct setting of the terminal emulation program when configuring the router through the Console ()
Take effect immediately after the Router ID of the OSPF process is modified ()
The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch and the MAC address are compared at the same time. ()
In the VRP interface, use the command delete vrpcfg.zip to delete a file. The file must be emptied in the recycle bin to completely delete the file. ()
All four switches run STP, and various parameters adopt default values. If the G0/0/2 port of switch C is blocked and the configuration BPDU cannot be sent through this port, how long will the blocked port in the network enter the forwarding state ()
On Huawei ARG3 routers, the -i parameter of the Ping command in VRP is used to set ().
Which of the following does not include the advantages of Wi-Fi6 compared to Wi-Fi5? ()
For switches running the STP protocol, the port needs to wait for the forwarding delay in the Learning state to transform into the Forwarding state. ()
When planning a campus network, which of the following methods can be used to divide service VLANs? ()
Which of the following parameters is not included in the configuration BPDU of the STP protocol? ()
The broadcast address is a special address that all the host bits in the network address are set to, and it can also be used as a host address. ()
PAP authentication is more secure than CHAP authentication because it does not carry passwords in clear text
The following is the statement about the election of active ports in link aggregation LACP mode. the correct one is? ()
When planning a campus network, which of the following mask lengths is recommended for device interconnection IP addresses? ()
On Huawei switches, you can use the vlan batch command to create multiple VLANs in batches, simplifying the configuration process. ()
UDP cannot guarantee the reliability of data transmission, and does not provide functions such as message sequencing and flow control. It is suitable for flows that do not require high transmission reliability, but require high transmission speed and delay ().
When the lease period reaches what percentage does the DHCP client send the lease renewal message for the first time? ()
The following figure shows the display interface Eth-Trunk 1 command output on a switch. Which of the following commands can be used to delete Eth-Trunk 1?
Refer to the following configuration of a switch interface. Which of the following statements is false?
interface GigabitEthernet0/0/1
port link-type trunk
port trunk pvid vlan 200
port trunk allow-pass vlan 100
When two switches are connected through link aggregation, what are the requirements for the interfaces on the two switches?
Which SNMP version focuses on two main aspects, namely security and administration. The security aspect is addressed by offering both strong authentication and data encryption for privacy. The administration aspect is focused on two parts, namely notification originators and proxy forwarders.
The network administrator performs the configuration shown in the following figure on RTA. If a user needs to be authenticated in the authentication domain named huawei, which of the following statements is true?
Network devices running SNMP can proactively report traps to help network administrators detect faults in a timely manner.
As shown in the figure, which of the following ports will be in blocking state?
In a broadcast address, all host bits are set to 1, and a broadcast address can be used as a host address.
Which of the following statements about the routing table shown in the figure are true?
Assuming all STP enabled switches have the same bridge priority. The MAC address of switch A is 00-e0-fc-00-00-40, the MAC address of switch B is 00-e0-fc-00-00-10, the MAC address of switch C is 00-e0-fc-00-00-20, and the MAC address of switch D is 00-e0-fc-00-00-80. Which switch will be elected as the root switch?
What is used as the data link-layer MAC address that identifies each VAP on an AP?
When a switch receives a unicast data frame, if the destination MAC address of the data frame can be found in the MAC address table of the switch, the data frame is definitely forwarded through the port corresponding to the MAC address.
To provide the information about the IP addresses that a user packet traverses along the path to the destination, which of the following does Tracert record in each expired ICMP TTL packet?
On the network shown in the figure, host A logs in to router A through Telnet and obtains the configuration file of router B through FTP on the remote CLI. How many TCP connections exist on router A?
Which of the following port states are included in Rapid Spanning Tree Protocol (RSTP)?
Which statement is true regarding the following command?
ip route-static 10.0.12.0 255.255.255.0 192.168.1.1
On the VRP platform, which of the following parameters can be used together with the "ping" command to specify the source address of an echo request message?
The tree topology is a hierarchical star topology, facilitating network expansion. A consequence of this topology is that faults on a node at a higher layer are more severe.
When a host uses the stateless address autoconfiguration solution to obtain an IPv6 address, the host cannot obtain the DNS server address.
The data link layer uses PPP encapsulation. The IP addresses of the two ends of the link can be in different network segments.
After the administrator performs the configuration shown in the figure on a router, which of the following commands can be used to specify a short lease for addresses assigned using DHCP?
RSTP uses the proposal/agreement mechanism to shorten the time that an upstream port waits before transitioning to the Forwarding state, but no temporary loop occurs. Why?
On an STP-enabled switch, a port in the Learning state can transition to the Forwarding state only after the Forward Delay timer expires.
It is advised to assign static IP addresses to servers during campus network planning.
Which of the following is the default value of the Router Dead Interval field in OSPF Hello packets on a broadcast network?
On the Huawei VRP, what is the default preference of different route types, in descending order?
The router that runs OSPF first enters the Full state and then synchronizes the LSDB.
Which of the following commands is used to configure the country code on an AC?
Which of the following information is displayed when an entered command is incomplete on the Versatile Routing Platform (VRP)?
Which of the following WLAN security policies support open link authentication?
A Layer 2 switch works at the data link layer. As such, it can identify MAC addresses in data frames, forward data based on MAC addresses, and record mappings between MAC addresses and interface numbers in its MAC address table.
Which of the following statements about the network shown in the figure is true?
If Proto of a route displayed in the routing table is OSPF, the preference of the route must be 10.
The rules in an ACL may overlap. If packets match the rules with loose conditions, the later ACL rules are not processed. In this case, packets cannot match the rules with strict conditions. Therefore, the rules with strict conditions must be arranged in front lines and those with loose conditions must be arranged towards the end.
As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.
In RSTP mode, both alternate and backup ports cannot forward user traffic and cannot receive, process, and send BPDU.
In the following figure, all links are Ethernet links, and all interfaces on the routers are running OSPF. Given this, how many DRs will be elected on this network?
Regarding the IPv6 address 2031:0000:720C:0000:0000:09E0:839A:130B, which of the following abbreviations are correct? ()
The subnet mask of a network segment 150.25.0.0 is 255.255.224.0, then () is a valid host address in this network segment. ()
Which of the following methods is not supported by the Versatile Routing Platform (VRP) to configure a router?
Which of the following is not the reason why RSTP can increase the speed of convergence? ()
The device port running the STP protocol is in the Forwarding state. Which of the following statements are correct? ()
When building a campus network, which of the following protocols can be used to avoid Layer 2 loops? ()
During data access, when accessing different network segments, the destination MAC. Encapsulate the MAC address of the gateway on the source host
Telnet.read in TelnetliB._The role of all() is to read all data until EOF. If the echo does not return EOF, it will always block ()
The network administrator hopes to be able to effectively use the P address of the 192.168.176.0/25 network segment. Now that the company’s marketing department has 20 hosts, which of the following address segments is best allocated to the marketing department? ()
The network structure and 0$PF partition are shown in the figure. In the figure, except for RTA., the routers RTB.RTC. and RTD. are ABR routers. ()
(RTA) ip route-statiC.10.1.1.02412.1.1.1 permanent
(RTA) ip route-statiC.10.2.2.02413.1.1.1.
VRP supports OSPF multi-process. If the process number is not specified when OSPF is enabled, the process number used by default is ().
The following description about the specified port of the spanning tree is correct ()·
Wireless access controller (AC, Access Cntroller) As a unified management and control device in the FIT AP architecture, the following description of the role of AC. is wrong ()
If the Length of an Ethernet data frame/Type = 0x8100, which of the following statements is correct? ()
As shown in the figure, you only need to configure this static route on R1, and the two hosts can communicate with each other normally.
CSS refers to the combination of two switch devices that support cluster features. Logically combined into one switch device. ()
The transport layer protocol has UDP and TCP, but UDP is more reliable than TCP
By default, the port cost calculated by STP has a certain relationship with the port bandwidth, that is, the larger the bandwidth, the higher the cost ()
The MPLS label header is encapsulated between the data link layer header and the network layer header of the message. ()
As shown in the figure. All four switches are running $TP. Various parameters are set to default values. If the GO/0/2 port of switch C is blocked and cannot send configuration BPDUs through this port, how long will it take for the blocked port in the network to enter the forwarding state? () (Single-choice question)
As shown in the figure below. Host A and Host B cannot communicate. ()(True or False)
As shown in the figure, it can be judged that 00e0-fc99-9999 is the specific host and MAC address learned by the switch through ARP. And the host has changed its IP address three times? () (Single-choice question)
10.137.217.21000e0-fc01-0203E1/0/0
10.2.2.100e0-fc99-9999Eth-Trunk 1
192.168.20.100e0-fc99-9999vlan100
10.0.0.100e0-fc99-9999vlan200
What is wrong about the description of the information as shown in the figure? () (Single-choice question)
(RI) display interface g0/0/0
GlgabltEtherneto/0/0 current state :Adainistratively DOWN Line protocol current state :DOWN
Which information of the data frame is used by the interface to determine whether to forward Layer 2 or Layer 3 forwarding? ()
As shown in the figure, when the switch needs to forward frames with the destination mac address of 5489-98ec-f011, which of the following descriptions is correct? () (Single-choice question)
The network structure and OSPF partition are shown in the figure. Except for RTA in the figure, the routers RTB, RTC and RTD are all ABR routers. ()(True or False)
The router running the 0SPF protocol can reach the FULL state after completing the LSDB. synchronization. ()
The network management system can only view the operating status of the device through the SNMP protocol, but cannot issue the configuration ()
In the MAC address table of the switch, which of the following entries will not age? ()
The configuration of the country code will affect the frequency used for actual transmission and the maximum transmission power. ()
When using the ping command on the VRp platform, if you need to specify an IP address as the source address of the echo request message, which of the following parameters should be used? ()
When the switch port sends a data frame that carries the same VLANTAG and PVID., it must be stripped of VLANTAG and forwarded. ()
When the IPv4 protocol is used as the network layer protocol, which field is not included in the network layer header? ()
Which of the following types of addresses are not included in IPv6 addresses? ()
Which of the following parameters cannot be used for advanced access control lists? ()
The configuration information of a certain port of the switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
The configuration information of a certain router is shown in the figure. Which of the following statements are correct? () (Single-choice question)
#
aaa
authentication-scheme default
authentication-scheme huawei
authentication-mode radius
authorization-scheme default
authorization-scheme huawei
accounting-scheme default
domain default
domain default admin
domain huawei
authentication-scheme huawei
authorization-scheme huawei
local-user huawei password cipher 123456
local-user huawei@huawei password cipher 654321
#
Which of the following methods can read data non-blocking in Python's telnetliB.? ()
Which of the following 0SPF protocol packets can ensure the reliability of LSA update? ()
Network as shown in the picture. The administrator hopes that all hosts cannot access the Web service (the port number is 80). Other services can be accessed normally. In the interface configuration of G0/0/1, which ACL rule needs to be bound to trattie-frilter outbound?
If the network address of a network is 10.1.1.0/30, what is its broadcast address? ()
The network shown in the figure below. The administrator wants RTA to use a static router. Priority is given to sending data packets to RTB's LoopbackO interface through G0/0/1 port. At the same time, G0/0/2 is used as a backup. Then any configuration on RTA can be Realize this requirement? () (Single-choice question)
As shown in the figure below, assuming that the MAC address table of SWA. is as follows, now host A. sends a data frame with a destination MAC address of MAC-B. Which of the following statements is correct? ()
OSPF Router ID. It must be the same as the IP address of an interface on the router.
In order for the STA to obtain the SSID related information on the AP, which of the following messages is used by the AP to proactively declare the wireless network SSID information?
When the host frequently moves the office, which VLAN division method is most suitable? ()
A device has been configured to complete Telnet configuration. The device login address is 10.1.1.10. The Telnet user name is admin and the password is Huawei (@123. The following is the correct way to log in to this device using telnetliB. ()
It is known that there are two entries in the routing table of a router. If the router wants to forward packets with the destination address of 9.1.4.5, the correct one of the following statements is ()
Which of the following commands can be used to view the CPU usage of the router? ()
After the administrator successfully logged in to the router through Te1net, he found that the router’s interface could not be configuredIP address. Then the possible reasons are ()
When two OSPF routers form a 2TAY neighbor relationship, LSDB. has been synchronized.
The election of the root switch in STP only compares the priority of the switch, while in RSTP, the priority of the switch is compared with the MAC address at the same time. ()
Which of the following parameters is used in LCP negotiation to detect link loops and other abnormal conditions? ()
Which of the following descriptions about Trunk port and Access port are correct ()
In standard STP mode, which of the following non-root switches will forward the C-set BPDU generated by the root switch? ()
The output information of a router's routing table is shown in the figure. Which of the following statements is correct? () (Multiple Choice Questions)
For multiple paths to the same destination network, the router needs to select by comparing the magnitude of the Prererence value. If the Preference is the same, the router selects according to the magnitude of the Cost value. ()
In the campus network, the reliability of the network can be improved by using link aggregation and stacking technology. ()
There is a WeB server in the private network that needs to provide HITP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA.
According to the command shown in the figure, which of the following descriptions is correct? () (Multiple Choice Questions)
Which bridge is in the configuration BPDU sent by the switchID. Impossible to appear?
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host. ()
A company applies for a C. IP address segment, which needs to be evenly distributed to 8 subsidiaries. The largest subsidiary has 14 computers. Different subsidiaries must be in different network segments, so the subnet mask should be set. for()
The configuration information of a certain port of the switch is shown in the figure. Then, when the data frame of which VLAN is sent by this port, it carries the VLAN TAG? ()interface GigabitEtherneto/0/1 port hybriD.taggeD.vlan 2 to 3 100 port hybriD. untaggeD. vlan 4 6#
There is no channel overlap in the 14 available frequency bands in the 2.4GHz frequency band. ()
What kind of network equipment can host A and host B use to achieve communication?
AP does not need AC. It can independently complete the work of wireless user access, wireless user authentication, and business data forwarding.
If the administrator wants to completely delete the old device configuration file, the following command is correct ().
When AP and MC are in different Layer 3 networks, what method is recommended for AP to discover AC?
If during the PPP authentication process, the authenticatee sends the wrong user name and password to the authenticator, what type of message will the authenticator send to the authenticatee? ()
The DHCPv6 server supports the provision of other configuration information such as DNS server addresses for the host.
When using the SNMPv1 protocol to manage network devices, which of the following commands is used by the network management system to complete the configuration of the network devices? ()
The Layer 2 networking of WLAN refers to STA. It uses AC as its own gateway. ()
A network engineer prompts the following message when entering the command line: Error: UnrecognizeD.commanD.founD.at '＾' position. Which of the prompt information is correct? ()
What is RouterDeadInterval of the OSPF protocol on the broadcast network by default? ()
When using the ping command on the VRp platform, if you need to specify a P address as the source address of the echo request message, which of the following parameters should be used? ()
On Huawei equipment, if AAA authentication is used for authorization, when the remote server does not respond, authorization can be performed from the network equipment side ()
In a Layer 2 network with redundant links, which of the following protocols can be used to avoid loops?
VRP operating platform, which of the following commands can only view static routes? ()
The administrator plans to implement route backup by configuring static floating routes. The correct way to achieve this is ()
NAPT allows multiple private IP addresses to be mapped to the same public P address through different port numbers. The following description of the port number in NAPT is correct ().
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TESTED 24 Nov 2024
