
【名词&注释】
数据包(packet)、通配符(wildcard)、帧中继(frame relay)、端口号(port number)、源地址(source address)
[单选题]A Ezonexam PC has the IP address 172.16.209.10 /22. What is the subnet of this address?
A. 172.16.42.0
B. 172.16.107.0
C. 172.16.208.0
D. 172.16.252.0
E. 172.16.254.0
查看答案&解析
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举一反三:
[单选题]帧中继环境下,为了区分虚电路,应该使用的地址是()
A. IP地址
B. MAC地址
C. DLCI
D. IPX地址
[单选题]扩展ACL和标准ACL的区别()。
A. 标准的ACL在禁止和允许方面比扩展的ACL更高的精度
B. 扩展的ACL核查数据包的源地址(source address)和目标地址和端口号
C. 他们都可以查端口号
D. 他们都可以查特殊协议和其他参数
[单选题]下列对RIP的配置中,合法的命令是()
A. router rip 100 network 10.12.0.0
B. router rip 100 network 10.0.0.0
C. router rip network 10.12.0.0
D. router rip 100 network 10.0.0.0
[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?
A. 1 network with 254 hosts
B. 4 networks with 128 hosts
C. 2 networks with 24 hosts
D. 6 networks with 64 hosts
E. 8 networks with 36 hosts
[单选题]下列哪一个通配符掩码与子网172.16.64.0/27的所有主机匹配()。
A. 255.255.255.0
B. 255.255.224.0
C. 0.0.0.31
D. 0.0.31.255
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