[单选题]“InsideGlobal”地址在NAT配置里表示的是什么()

正确答案 ：B

一个注册的地址是表示一个内部的主机到外部网络

[多选题]The Ezonexam network administrator needs to determine what LAN devices to install on the Ezonexam network. What are two advantages of using Layer 2 Ethernet switches over hubs? (Choose two)

正确答案 ：AD

Allowing simultaneous frame. transmissions

Filtering frames based on MAC addresses

解析：解析：Explanation:A:Ahalfduplexconnectioniswhereonlyonedevicecansendorreceiveatatime.Afullduplexconnectioniswherebothdevicescansendandreceiveatthesametime.Thus,ifyouhavea100Mbhalf-duplexconnection,onlysendingat100MbORreceivingat100Mbcanhappenatthesametime.Ifyouhavea100Mbfullduplexconnection,youcaneffectivelyget200Mboutofthelinkbecauseyoucouldbesending100Mbandreceiving100Mbatthesametime.D:SwitchesarecapableoffilteringframesbasedonanyLayer2fields.Forexample,aswitchcanbeprogrammedtoreject(notforward)allframessourcedfromaparticularnetwork.Becauselinklayerinformationoftenincludesareferencetoanupper-layerprotocol,switchesusuallycanfilteronthisparameter.Furthermore,filterscanbehelpfulindealingwithunnecessarybroadcastandmulticastpackets.

[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

正确答案 ：B

访问控制列表

[单选题]OSI七层模型中，物理层的数据封装名称为（）

正确答案 ：A

比特

[多选题]You need to configure an 802.1Q link on a Ezonexam switch. Which commands, when used together, would do this? (Select two answer choices)

正确答案 ：CD

Switch(config-if) switchport mode trunk

Switch(config-if) switchport trunk encapsulation dot1q

解析：C,D 解析：Explanation:

[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?

正确答案 ：D

An additional broadcast domain will be created.

解析：解析：Explanation:

[单选题]You are an administrator of the Ezonexam switched network and your goal is to reduce some of the administrative overhead on your network. You plan on achieving this by configuring a new VLAN for each department in the Ezonexam network.However, you need to share the VLAN information across numerous switches. Which of the following would allow you accomplish this?

正确答案 ：D

VTP

解析：D 解析：Explanation:

[单选题]当拓扑信息完成交换，相邻路由器具有相同的LSDB时，下列哪项OSPF邻居状态是希望得到的()

正确答案 ：B

FULL

[单选题]对交换机的描述，正确的是（）

正确答案 ：B

单广播域，多冲突域的设备

[多选题]CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)

正确答案 ：BD

To obtain the IP Address of a connected device in order to telnet to the device

To verify Layer 2 connectivity between two devices when Layer 3 fails

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