正确答案: D

To maintain a loop-free Layer 2 network topology

题目：What is the purpose of the Spanning Tree Protocol (STP)?

解析：解析：Explanation:

查看原题查看所有试题

学习资料的答案和解析：

[单选题]Cisco IOS命令ip nat inside source static 10.1.1.5 172.35.16.5的作用是什么()

为内部本地地址和内部全局地址创建一对一的映射关系

[单选题]基本IP访问权限表的表号范围是：()

1-99

[单选题]查看E0端口配置信息的命令是：()

show interfacee0

[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（）

show interface e0

[单选题]路由器上，设置端口速率的命令是（）

bandwidth

[单选题]You are a senior network administrator at Ezonexam, and while performing the password recovery procedure on your 2500 series Cisco router, you type in the following command:o/r 0x2142

It is used to bypass the configuration in NVRAM.

解析：解析：Explanation:

[多选题]How could the Ezonexam corporation benefit from using VLANs on their network?(Select three answer choices.)

VLANs allow access to network services based on department, not physical location.

VLANs establish segmented broadcast domains in switched networks.

解析：A,E,F 解析：Explanation:

[单选题]On the topic of VLSM, which one of the following statements best describes the concept of the route aggregation?

Combining routes to multiple networks into one supernet.

解析：解析：Explanation:

[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)

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.