单项选择题

What kind of message does a PING send out to test connectivity?（）

A. ICMP echo request
B. Information interrupt request
C. Timestamp reply
D. Source quench
E. None of the above

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热门试题

单项选择题

The Testking router is running RIP as the routing protocol, and the IP routing table is displayed below: Gateway of last resort is 10.1.2.2 to network 0.0.0.0 10.0.0.0 24 is subnetted, 2 subnets R 10.1.3.0 [120 1] via 10.1.2.2, 00:00:00, Serial0 0 C 10.1.2.0 is directly connected, Serial0 0 C 10.1.5.0 is directly connected, Serial0 1 C 10.1.6.0 is directly connected, FastEthernet0 0 R* 0.0.0.0 0 [120 1] via 10.1.5.5, 00:00:00, Serial0 1 Based on the output above, if an administrator pings host 10.1.8.5 from host 10.1.6.100, how will the router TestkingA process the ICMP packets?（）

A. The packets will be discarded.
B. The packets will be routed out the S0/0 interface.
C. The packets will be routed out the S0/1 interface.
D. The packets will be routed out the Fa0/0 interface.
E. The packets will be routed through the 10.1.2.2 gateway.

单项选择题

You work as a network engineer at TestKing.com. TestKing users have noticed extremely slow network performance, intermittent connectivity, and connection loss. After entering the show interfaces command, you notice that the Ethernet interface is configured as 100 Mbps full-duplex and that there is evidence of late collisions. What could be the cause of this problem?（）

A. duplex mismatch
B. a routing loop
C. trunking mode mismatch
D. improperly configured root bridge
E. improperly configured static VLAN