The election of the root switch in STP only compares the switch priority, while in RSTP, the switch priority and MAC address are compared at the same time.

• A.True
• B.False

Comment: *

Name: *

Email: *

Verification: *

Which of the following statements about the default route are correct? (Multiple Choice)

• A.There must be a default route in the routing table of any router
• B.The default route can only be manually configured by the administrator
• C.If the destination address of the message cannot match any other routing entries in the routing table, the router will forward the message according to the default route
• D.In the routing table, the default route appears as a route to the network 0.0.0.0 (the mask is also 0.0.0.0)

Comment: *

Name: *

Email: *

Verification: *

In the network shown in the figure below, assuming that all routers enable the OSPF protocol at the same time, which router is the BDR in this network?

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

Comment: *

Name: *

Email: *

Verification: *

When using FTP for file transfer, how many TCP connections will be established?

• A.4
• B.3
• C.2
• D.1

Comment: *

Name: *

Email: *

Verification: *

In 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. Use the command ping 11.0.12.1 on host A.
Which of the following statements are correct?

• A.No data packets will be sent from host A
• B.The destination MAC address of the data frame sent by host A is MAC-C
• C.The destination MAC address of the data frame sent by host A is MAC-B
• D.The IP address of the data packet sent by host A is 11.0.12.1

Comment: *

Name: *

Email: *

Verification: *