思科考试是随报随考，在复习的过程中中还是不够全面，为了帮助广大考生系统全面的复习好《思科认证：CCNA认证学科》，我们考吧网整理了思科认证模拟试题，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: you are a network technician at acme, inc. you have subnetted the 192.168.72.0 network with a /30 mask for connections between your routers. your boss asks you how many usable subnetworks and usable host addresses per subnet this will provide. what should you tell her, assuming your router cannot use ip subnet-zero?

a. 62 networks and 2 hosts

b. 6 networks and 30 hosts

c. 8 networks and 32 hosts

d. 16 networks and 16 hosts

e. 14 networks and 14 hosts

2 match the following application layer services to their corresponding transport layerprotocol port. (匹配下列的应用层服务和它们对应的传输层协议端口)：

a. smtp 1. tcp/23

b. Ftp 2. tcp/25

c. tftp 3. tcp/80

d. te l n e t 4. tcp/21

e. http 5. udp/69

f. dns 6. tcp/53

3: which of the following ip addresses are considered "network" addresses with a /26 prefix? (choose two.)

a. 165.203.2.0

b. 165.203.5.192

c. 165.203.6.63

d. 165.203.6.191

e. 165.203.8.255

4: which of the following statements accurately describes udp?

a. udp copies files between a computer and a system running rshd, the remote shell service (daemon).

b. udp is a member of the tcp/ip suite of protocols that governs the exchange of electronic mail between message transfer agents.

c. udp is a member of the tcp/ip suite of protocols and is used to copy files between two computers on the internet. both computers must support their respective roles: one must be a client, and the other a server.

d. udp is a tcp complement that offers a connectionless datagram service guaranteeing neither delivery nor correct sequencing of delivered packets (much like ip).

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思科认证：CCNA认证考前精选模拟试题汇总三

思科认证：CCNA认证考前精选模拟试题汇总四