[单选题]On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)

正确答案 ：C

The hosts will attempt to resume transmission after a time delay has expired.

解析：C 解析：Explanation:

[单选题]把访问权限表应用到路由器端口的命令是：()

正确答案 ：B

ip access-group 101 out

[单选题]路由器上，清空路由表的命令是（）

正确答案 ：D

clearip route*

[单选题]While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?

正确答案 ：E

The network layer

解析：解析：Explanation:

[多选题]As a Ezonexam trainee you are required to set the default gateway on a Cisco switch to the IP address of 192.168.1.115. Which IOS command should you use?

正确答案 ：ABCD

TestKSwitch(config) ip route-default 192.168.1.115

TestKSwitch(config) ip default-gateway 192.168.1.115

TestKSwitch(config) ip route 192.168.1.115 0.0.0.0

TestKSwitch(config) ip default-network 192.168.1.115

解析：解析：Explanation:

[多选题]In which Spanning-Tree states does a switch port learn MAC addresses? (Select two)

正确答案 ：CD

Forwarding

Learning

解析：解析：Explanation:

[单选题]A receiving host has failed to receive all of the segments that it should acknowledge.What can the host do to improve the reliability of this communication session?

正确答案 ：E

Decrease the window size

解析：解析：Explanation:

[多选题]Which three statements are true about the operation of a full-duplex Ethernet network, which is being used in the Ezonexam LAN? (Choose three)

正确答案 ：BCE

The host network card and the switch port must be capable of operating in full-duplex mode.

There are no collisions in full-duplex mode.

A dedicated switch port is required for each full-duplex node.

解析：解析：Explanation:

[单选题]You need to perform. some initial configuration tasks on a new Ezonexam switch. What is the purpose of assigning an IP address to a switch?

正确答案 ：B

To allow remote management of the switch.

解析：解析：Explanation:Switchisalayer2deviceanddoesn'tusenetworklayerforpacketforwarding.TheIPaddressmaybeusedonlyforadministrativepurposessuchasTelnetaccessorfornetworkmanagementpurposes.

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