2014 network administrator-exam exercise Questions and answers (4)

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View summary: Exercise questions and answers for the 2014 soft exam Network Administrator examination [summary] 650) This. width = 650; "alt =" popular article "src =" http://www.exam8.com/images/hot.gif "style =" padding: 0px; margin: 0px; Vertical-align: middle; Border: 0px; "/>

1. The main elements of network protocols are (c ).

A. Data Format, encoding, and signal level

B. Data Format, control information, and speed matching

C. syntax, semantics, and timing

D. coding, control information, and timing

2. What control information should be issued by both parties in the network protocol? The action executed and the part of the response returned are referred to as ().

A. Syntax

B. semantic part

C. timing relationship

D. None of the above

3. the OSI reference model is (d ).

A. CCITT

B. ARPA

C. nsf

D. ISO

4. the OSI model is proposed for ().

A. Establish an absolute standard that must be followed to design any Network Structure

B. overcome the inherent communication problems of multi-vendor Networks

C. Prove that the network structure without layering is not feasible

D. None of the above statements

5. In the OSI Layer-7 structure model, B is located between the data link layer and the transport layer ).

A. Physical Layer

B. Network Layer

C. Session Layer

D. Presentation Layer

6. In the ISO/OSI reference model, the main function of the network layer is (B ).

A. provides reliable end-to-end services and transparent transmission of packets

B. Route Selection, congestion control, and network interconnection

C. Transmit frame-based data between communication entities

D. Data Format exchange, data encryption and decryption, data compression and recovery

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