CISCO模擬試題：CCNA考試自測題2

ciSCO模擬試題：CCNA考試自測題2

25) Which statement is true of WinSock (下麵對Wi n S o c k的哪一句陳述是正確的)？

A.ITis a MAC application

B.ITrepresents a graphical user interface

C.ITrepresents a network layer

D. It provides the means for sharing an Internet connection between multiple IP proTOCol suite utilITIEs 　　

26) Which statement is true of TLI (下麵關於T L I的哪一句陳述是正確的)？ 　　

A.ITis a layer in the OSI model

B.ITis a layer in the TCP/IP model

C.ITis a System V API

D.ITis part of the UNIX Kernel 　　

27) Which statement is true of Windows Name Server (WINS) (下麵對於Windows 命名服務器( W I N S )的陳述中，哪一句是正確的)？ 　　

A.ITis a proTOCol

B.ITprovides capabilITy for name resolution

C.ITis a network layer

D.ITis a proprIEtary name server

E. A, B, and D only

F. B and D only 　　

28) ICMP、I P、ARP and RARP of the IP proTOCol suITe map to (IP協議套件的I C M P、I P、A R P和R A R P映射到)： 　　

A. OSI layers 1 and 2 B. OSI layer 5

C. OSI layer 3 D. OSI layer 2 　

29) Which layer is most important in providing reliable data exchange between two systems (在兩個係統之間提供可靠的數據交換中，哪一層是最重要的)？　　

A. Physical layer B. Data link layer

C. Session layer D. Transport layer 　　

30) Which of the following does TCP provide (TCP提供了下麵的哪一個功能)？ 　　

A. Unreliable data strEAM

B. Connectionless virtualcircuIT

C. Flow control

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