[单选题]A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address?
正确答案 :C
172.16.208.0
解析:解析:Explanation:
[单选题]路由器上,命令“show int s0”的显示结果为:Serial0 is up,line protocol is down出现该结果的可能原因是()
正确答案 :C
两端设备协议不一致
[单选题]The IP network 210.106.14.0 is subnetted using a /24 mask. How many usable networks and host addresses can be obtained from this?
正确答案 :A
1 network with 254 hosts
解析:解析:Explanation:Asubnetwith24bitsonwouldbe255.255.255.0.SincethisisaclassCnetwork,thissubnetcanhaveonly1networkand254usablehosts.
[单选题]命令ip nat pool aaa 192.1.1.2 192.1.1.10 netmask 255.255.255.0的作用是()
正确答案 :B
定义地址池
[单选题]交换机转发数据到目的地依靠()
正确答案 :B
MAC地址表
[单选题]You need to perform. some initial configuration tasks on a new Ezonexam switch. What is the purpose of assigning an IP address to a switch?
正确答案 :B
To allow remote management of the switch.
解析:解析:Explanation:Switchisalayer2deviceanddoesn'tusenetworklayerforpacketforwarding.TheIPaddressmaybeusedonlyforadministrativepurposessuchasTelnetaccessorfornetworkmanagementpurposes.
[单选题]对路由器的描述,正确的是()
正确答案 :C
多广播域,单冲突域的设备
[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()
正确答案 :C
192.168.50.65---192.168.50.70
[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()
正确答案 :D
EIGRP路由
[单选题]工作在OSI第三层的设备是:()
正确答案 :B
路由器
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