Q73. The output information of the STP port of a certain switch is shown in the figure. Which of the following statements is wrong? () (Single-choice question)
[Huawei]display stp interface Ethernet 0/0/1
——-[CIST Global Info][Mode STP]——-
CIST Bridge: 32768.4c1f-cc46-4618
Config TimesHello 4s MaxAge 20s FwDly 15s MaxHop 20
Active Times:Hello 2s MaxAge 20s FwDly 15s MaxHop 20
CIST Root/ERPC:0.4c1f-ccf7-3214/200000
CIST RegRoot/IRPC: 32768.4c1f-cc46-4d18/0

Q74. Layer 3 devices like routers receive data frames based on () Forwarding data frames.

Q75. The RSTP protocol uses the P/A mechanism to speed up the speed of the upstream port to the F orwarding state, but what is the reason for the no temporary loop? . Shorten the time of ForwarD.Del ay

Q76. When the LCP phase of PPP is negotiated, the content of the negotiation includes ()*

Q77. As shown in the figure, if host A has the ARP cache of host B, host A can ping host B.

Q78. What is the priority value of the direct route entry? ()

Q79. Which of the following OSPF versions is suitable for IPv6?

Q80. Layer 2 switches belong to the data link layer equipment. It can identify the MAC address information in the data frame, forward data according to the MAC address, and record these MAC addresses and corresponding port information in its own MAC address table.

Q81. The port in the Discarding state in RSTP will discard the received data frame. However, the MAC address table can be maintained according to the data frames received by the port.

Q82. 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. ()

Q83. In the network as shown in the figure, the administrator hopes that all hosts cannot access the Web service (the port number is 80). Other services can be accessed normally. Then, in the interface configuration of G0/0/1, traffic-filWhich ACL rule needs to be bound to ter outbound? ()

Q84. In the broadcast network, which routers will a DRother router exchange link status information with?

Q85. Which of the following IPv4 addresses does the host use to directly access the Internet?

Q86. 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 permit source 192.168. 2.0 0.0.0.255 RTA-acl-basic-2000)quit RTA)interface serial1/0/0 (RTA-Serial1/0/0 )nat outbound 2000 address-group1 no-pat *

Q87. Management Information Base (MIB) Information Base) is a virtual database, which only exists on the NMS. ()

Q88. 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*

Q89. Which of the following commands can be used to query the configuration information of the device’s 0SPF protocol? ()*

Q90. Which state does the OSPF protocol use to indicate that the adjacency relationship has been established?

Q91. The config mode is the default ACL matching order on Huawei devices.

Q92. How many planes does a network device have? ()*

Q93. Which of the following port states is not included in the RSTP protocol? ()