[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]You are an administrator of the Ezonexam switched network and your goal is to reduce some of the administrative overhead on your network. You plan on achieving this by configuring a new VLAN for each department in the Ezonexam network.However, you need to share the VLAN information across numerous switches. Which of the following would allow you accomplish this?

正确答案 ：D

VTP

解析：D 解析：Explanation:

[单选题]以下特殊区域中哪一个没有自动下发缺省路由（）

正确答案 ：D

完全NSSA区域

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