
【名词&注释】
路由表(routing table)、混合型(mixed)、交换机(switch)、数据包(packet)、目的地(destination)、效率高(high efficiency)、广域网协议
[单选题]关于PPP和HDLC的说法中,错误的是()
A. PPP是通用协议,HDLC是CISCO私有协议
B. PPP有验证功能,HDLC无验证功能
C. PPP效率低,HDLC效率高(high efficiency)
D. 在配置ISDN时,广域网协议不能封装成PPP,但可以封装成HDLC
查看答案&解析
举一反三:
[单选题]下面有关交换机的描述中,正确的是()
A. 所有交换机都支持VLAN功能
B. 交换机端口数量最多为48口
C. 交换机独占带宽
D. 交换机端口的最大速率为100Mbit/s
[单选题]在地址转换中,()用来规定哪些数据包需要进行地址转换
A. 在线用户表
B. 访问控制列表
C. MAC地址表
D. 路由表
[单选题]IP地址为:192.168.50.70,掩码为:255.255.255.248,则该IP地址所在子网的子网有效IP为()
A. 192.168.50.33---192.168.50.39
B. 192.168.50.41---192.168.50.50
C. 192.168.50.65---192.168.50.70
D. 192.168.50.66---192.168.50.75
[单选题]A Ezonexam switch is configured with all ports assigned to VLAN 2. In addition, all ports are configured as full-duplex FastEthernet. What is the effect of adding switch ports to a new VLAN on this switch?
A. The additions will create more collisions domains.
B. IP address utilization will be more efficient.
C. More bandwidth will be required than was needed previously.
D. An additional broadcast domain will be created.
E. The possibility that switching loops will occur will increase dramatically.
[单选题]下列对RIP的配置中,合法的命令是()
A. router rip 100 network 10.12.0.0
B. router rip 100 network 10.0.0.0
C. router rip network 10.12.0.0
D. router rip 100 network 10.0.0.0
[单选题]标准访问控制列表应被放置的最佳位置是在()。
A. 越靠近数据包的源越好
B. 越靠近数据包的目的地越好
C. 无论放在什么位置都行
D. 入接口方向的任何位置
[单选题]混合型协议既具有“距离矢量路由协议”的特性,又具有“链路状态路由协议”的特性,下列协议中属于混合型协议的是:()
A. RIP
B. OSPF
C. EIGRP
D. IGRP
[单选题]A new Ezonexam switch is installed into an existing LAN and a new VTP trunk is set up with an existing switch. Which VLANs will be allowed on this new trunk?
A. All defined VLANs are allowed on the trunk by default.
B. Each VLAN, or VLAN range, that is specified with the switchport mode command.
C. Each VLAN, or VLAN range, that is specified with the vtp domain command.
D. Each VLAN, or VLAN range, that is specified with the vlan database command.
E. None of the above
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