正确答案: B

30S

题目：默认情况下，RIP定期发送路由更新的时间是（）

解析：B

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举一反三的答案和解析：

[单选题]下列命令中，无法正确执行的是（）

Router(config)show run

[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)

92.11.178.93

134.178.18.56

192.168.16.87

解析：C,D,E 解析：Explanation:

[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?

1 network with 254 hosts

解析：解析：Explanation:Asubnetwith24bitsonwouldbe255.255.255.0.SincethisisaclassCnetwork,thissubnetcanhaveonly1networkand254usablehosts.

[单选题]配置路由器特权用户“加密密码”的命令是：()

enable secret

[单选题]扩展IP访问权限表的表号范围是：()

100-199