[单选题]下列关于路由器和交换机的描述中，错误的是（）

正确答案 ：D

交换机可以转发广播

[单选题]标准访问控制列表的数字标识范围是（）。

正确答案 ：B

1-99

[单选题]为了查看路由器的E0端口上，是否挂接了访问权限表，应该使用的命令是（）

正确答案 ：B

show interface e0

[多选题]There are 2 switches in the Ezonexam LAN, with no routers. Ports 1, 2 & 3 are assigned to VLAN 1 in switch 1 and 2 and ports 4, 5 & 6 are assigned to VLAN 2 in both switches. These two switches are connected together via a trunked link. Which of the conditions below would verify trunk and VLAN operation? (Select all valid answers)

正确答案 ：ADE

Host 1 on VLAN 1 can ping Host 2 on VLAN 1

Host 4 on VLAN 2 can not ping Host 1 on VLAN 1

Host 4 on VLAN 2 can ping Host 2 on VLAN 2

解析：解析：Explanation:

[单选题]以下（）LSA类型是ASBR来宣告外部路由信息的。（）

正确答案 ：E

类型5

[单选题]为了禁止网络210.93.105.0ftp到网络223.8.151.0，允许其他信息传输，则能实现该功能的选项是：()

正确答案 ：D

access-list 100 deny tcp 210.93.105.0 0.0.0.255 223.8.151.00.0.0.255 eq ftp access list 100 permit ip any any

[单选题]下列哪一个通配符掩码与子网172.16.64.0/27的所有主机匹配（）。

正确答案 ：C

0.0.0.31

[单选题]An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up.What does "line protocol is up" specifically indicate about the interface?

正确答案 ：C

Keepalives are being received on the interface.

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.

[单选题]IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP和掩码结合，共划分了多少个子网（不包括全0子网和全1子网）（）

正确答案 ：B

30

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