为了帮助考生们复习好《思科认证：CCNA认证学科》，我们考吧网整理了一些关于思科认证：CCNA认证的复习模拟试题，本次汇编的模拟试题希望对你的考试有所帮助，预祝你考试顺利

1、DNS工作于( )

(A) 网络层

(B) 传输层

(C) 会话层

(D) 表示层

(E) 应用层

答案：E

2: you are designing an ip address scheme for your brand new remote office. the vice president of it calls to tell you that you will be in charge of the 192.168.1.64/26 subnetwork. this supplies you with a single subnetwork with 62 hosts. you need to have at least two subnets with 14 hosts in each subnet. what custom subnet mask should you use?

a. 255.255.255.128

b. 255.255.255.192

c. 255.255.255.224

d. 255.255.255.240

e. 255.255.255.248

3: what is the subnetwork address for a host with the ip address 201.100.5.68/28?

a. 201.100.5.0

b. 201.100.5.32

c. 201.100.5.64

d. 201.100.5.65

e. 201.100.5.31

f. 201.100.5.1

4: which of the following protocols uses a three-way handshake mechanism to establish sessions?

a. tcp

b. ip

c. udp

d. ipx

e. frame relay

5、以下关于DTE的说法的正确的是( )

(A) DTE是指数据终端设备

(B) DTE是指数据电路终接设备

(C) DTE可以是计算机或计算机终端，也可以是其它数据终端

(D) DTE在模拟技术体制下是调制解调器，而在数字技术体制下可以是数据业务单元

答案：AC

6: you have subnetted the 210.106.14.0 network with a /24 mask. your boss at acme, inc. wants to know how many usable subnetworks and usable host addresses per subnet this would provide. what should you tell her?

a. one network with 254 hosts

b. two networks with 128 hosts

c. four networks with 64 hosts

d. six networks with 30 hosts

7: identify three valid host addresses in any subnet of the 201.168.27.0 network, assuming a fixed subnet mask of 255.255.255.240. (choose three.)

a. 201.168.27.33

b. 201.168.27.112

c. 201.168.27.119

d. 201.168.27.126

e. 201.168.27.175

f. 201.168.27.208

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