[单选题]扩展ACL和标准ACL的区别()。
正确答案 :B
扩展的ACL核查数据包的源地址和目标地址和端口号
[单选题]为了使配置私有IP的设备能够访问互联网,应采用的技术是()
正确答案 :A
NAT
[多选题]交换机的三大功能为()
正确答案 :ABC
地址学习
转发过滤
消除回路
解析:ABC
[单选题]What is the purpose of the spanning-tree algorithm in a switched LAN?
正确答案 :C
To prevent switching loops in networks with redundant switched paths.
解析:解析:Explanation:STPisusedinLANswithredundantpathsorroutestopreventloopsinalayer2switchedorbridgedLAN.IncorrectAnswers:A,B:TheprimarypurposeofSTPistopreventloops,notformonitoringormanagementofswitchesorVLANs.D.VLANsareusedtosegmentaLANintomultiplecollisiondomains,buttheSTPprocessalonedoesnotdothis.E.Routersareusedtopreventroutingloopsatlayer3oftheOSImodel.STPoperatesatlayer2.
[单选题]OSI第二层数据封装完成后的名称是:()
正确答案 :C
帧
[多选题]Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)
正确答案 :BD
Addresses that cannot be routed through the public Internet.
A scheme to conserve public addresses.
解析:解析:Explanation:
[单选题]OSI七层模型中,数据链路层的数据封装名称为()
正确答案 :B
帧
[多选题]Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet? (Select all that apply)
正确答案 :CDE
92.11.178.93
134.178.18.56
192.168.16.87
解析:C,D,E 解析:Explanation:
[单选题]OSPF的度量值是什么()
正确答案 :D
链路状态
[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
查看原题 点击获取本科目所有试题