2014年思科认证考试CCNA备考模拟试题二
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. Which of the following is not a job for the presentation layer? Choose 2
A. Data representation B. Compression
C. Dialog management D. Transmission E. Encryption
Answer C D. C is handled by the session layer, and D is handled by the Transportlayer
2. Of the following address AA77:3827:EF54, which of the following is the vendor
portion?
A. AA7738 B. 27EF54 C. AA77 D. EF54
Answer A. The vendor code is how you can tell who made the card. The last 6 digits
are the physical address.
3. Which of the following are examples of layer 3 addressing?
A. 165.33.4.34 B. AA77:3827:EF54 C. HHHH:hg:7654 D. 76
Answer A B. The first is a TCPIP address and the second is an IPX address
4. What does Peer to Peer communication involve?
A. Each layer communication with the layer below it
B. Each layer communication with layer above it
C. Each layer communicating with adjacent layer in another system
D. Each layer communication with it s corresponding layer in another system
Answer D. Answer C sounds correct also, but adjacent and corresponding are two
different things. The session layer can only communicate with the session layer in
another system for example.
5 Why does the industry use a layered model? Choose all correct
A. When you enhance one layer it doesn t affect the other layers
B. Design and development can be made in a modular fashion
C. Network operations can be simplified
D. Troubleshooting can be simplified.
Answer A B C D.
6. Which two of the following are not from the physical layer?
A. SDLC B. V.35 C. HSSI D. ISDN E. RS-232
Answer A D. SDLC and ISDN are WAN protocols that function at the data link layer
7. Which two answers are functions of the OSI model"s network layer?
A. Sequencing of frames B. Path determination
C. Packet switching D. Packet sequencing
Answer B C. Sequencing is done at the data link layer. D is fictional.
er B C. Sequencing is done at the data link layer. D is fictional.
8. What is an example of a MAC address?
A. Az32:6362:2434 B. Sj:2817:8288
C. GGG:354:665 D. A625:cbdf:6525
Answer D. The address is a 48 bit address which requires 12 Hex digits. A hex digit
can t be past the letter F. Hex stands for 16. 1-9 and A-F make up numbers that are
valid.
9. Which of the following is not part of the data link layer?
A. Transports data across the physical link
B. Performs physical addressing
C. Performs flow control
D. Determines network topology
E. Terminates a session
Answer E. This is part of the session layer
10. Which of the following are data link protocols?
A. HDLC B. FTP C. SQL D. ISDN E. Token Ring
Answer A D E. FTP is an application and SQL is a session layer protocol.
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