How many port states are involved in RSTP?

• A.1
• B.2
• C.4
• D.3

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By referring to the network structure and OSPF areas shown in the figure, it can be determined that all routers on the network except RTA are ABRs.

• A.TRUE
• B.FALSE

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The FIT AP can obtain the IP address of AC. through the DHCP Option to establish a CAPWAP tunnel.
Which Option needs to be configured on the DHCP server for this? ()

• A.Option 55
• B.Option 82
• C.Option 43
• D.Option 10

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As shown in the figure, router A has successfully telneted to router B using 10.0.12.2. Which of the following operations will interrupt the Telnet session between router A and router B?

• A.Configure a static route
• B.Enable OSPF on G0/0/1
• C.Disable G0/0/1
• D.Change the IP address of G0/0/1

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Assuming that OSPF has been enabled on all routers in the following figure, which router is the BDR on this network?

• A.Router B
• B.Router A
• C.Router D
• D.Router C

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