【名词&注释】
路由表(routing table)、路由器(router)、应用层(application layer)、集线器(hub)、交换机(switch)、会话层(session layer)
[单选题]路由器上激活端口的命令是（）
A. shutdown
B. no shutdown
C. up
D. noup
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举一反三：
[单选题]命令“ping127.0.0.1”的功能是（）
A. 测试网卡是否正常
B. 测试网关是否正常
C. 测试TCP/IP协议是否正常
D. 测试介质是否正常
[单选题]两个VLAN之间要想通信，应该使用的设备是（）
A. 集线器
B. 二层交换机(switch)
C. 路由器
D. PC机
[单选题]路由表中，某条路由的“路由代码为D”，则表明该路由为（）
A. 直连路由
B. 静态路由
C. IGRP路由
D. EIGRP路由
[单选题]Assuming you build networks to exact specifications, what is the recommended maximum length a 10BaseT cable can be before it has to be segmented or repeated?
A. 100 meters
B. 100 feet
C. 100 yards
D. 200 meters
E. None of the above
[单选题]TELNET工作在OSI哪一层（）
A. 会话层(session layer)
B. 表示层
C. 传输层
D. 应用层
[单选题]Study the Exhibit below carefully:London#show vtp
A. VTP Version: 2
B. Configuration Revision: 0
C. Maximum VLANs supported locally: 64
D. Number of existing VLANs: 5
E. VTP Operating Mode: Client
F. VTP Domain Name: London
G. VTP Pruning Mode: Disabled
H. VTP V2 Mode: Disabled
I. VTP Traps Generation: Disabled
J. Based on the information given above, what is the VTP function of this particular switch?
K. Learn and save VTP configuration in the running configuration.
L. Create and change VLANs.
M. Forwards information about VTP configuration.
N. VTP is disabled on this device.
O. VTP is not saved to NVRAM.
[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?
A. TestKSwitch(config) ip route-default 192.168.1.115
B. TestKSwitch(config) ip default-gateway 192.168.1.115
C. TestKSwitch(config) ip route 192.168.1.115 0.0.0.0
D. TestKSwitch(config) ip default-network 192.168.1.115
E. None of the above
[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
[单选题]IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP和掩码结合划分子网时，每个子网的容量为（）
A. 8
B. 4
C. 12
D. 6
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