Computer Networks Questions & Answers – ATM & Frame Relay MCQ أسئله شبكات بالأجابات الجزء الثامن والثلاثون

Computer Networks Questions & Answers – ATM & Frame Relay

 

1. ATM and frame relay are
a) virtual circuit networks
b) datagram networks
c) virtual private networks
d) none of the mentioned

Answer: a
Explanation: ATM stands for asynchronous transfer mode.

2. ATM uses the
a) asynchronous frequency division multiplexing
b) asynchronous time division multiplexing
c) asynchronous space division multiplexing
d) none of the mentioned

Answer: b
Explanation: None.

3. ATM standard defines _______ layers.
a) 2
b) 3
c) 4
d) 5

Answer: b
Explanation: Three layers are physical layer, ATM layer and application adoption layer.

4. ATM can be used for
a) local area network
b) wide area network
c) any of local or wide area network
d) none of the mentioned

Answer: c
Explanation: None.

5. An ATM cell has the payload field of
a) 32 bytes
b) 48 bytes
c) 64 bytes
d) 128 bytes

Answer: b
Explanation: None.

6. Frame relay has error detection at the
a) physical layer
b) data link layer
c) network layer
d) transport layer

Answer: b
Explanation: None.

7. Virtual circuit identifier in frame relay is called
a) data link connection identifier
b) frame relay identifier
c) cell relay identifier
d) none of the mentioned

Answer: a
Explanation: None.

8. Frame relay has
a) only physical layer
b) only data link layer
c) only network layer
d) both physical and data link layer

Answer: d
Explanation: None.

9. In frame relay networks, extended address is used
a) to increase the range of data link connection identifiers
b) for error detection
c) for encryption
d) for error recovery

Answer: a
Explanation: None.

10. What is FRAD in frame relay network?
a) FRAD assembles and disassembles the frames coming from other protocols
b) FRAD is used for modulation and demodulation
c) FRAD is used for error detection
d) None of the mentioned

Answer: a
Explanation: FRAD stands for frame relay assembler/disassembler.

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