A directory of Objective Type Questions covering all the Computer Science subjects.

1.
________ is a virtual-circuit wide-area network that was designed in response to demands for a new type of WAN in the late 1980s and early 1990s.
a. X.25
b. Frame Relay
c. ATM
d. none of the above
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Answer: (b).Frame Relay

2.
Frame Relay provides ________.
a. PVCs
b. SVCs
c. either (a) or (b)
d. neither (a) nor (b)
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Answer: (c).either (a) or (b)

3.
VCIs in Frame Relay are called ______.
a. PVC
b. SVC
c. DLCIs
d. none of the above
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Answer: (c).DLCIs

4.
In Frame Relay, when a _____ is selected, the corresponding table entry is recorded for all switches by the administrator
a. PVC
b. SVC
c. either (a) or (b)
d. neither (a) nor (b)
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Answer: (a).PVC

5.
In Frame Relay, when ______ is selected, it requires establishing and terminating phases
a. a PVC
b. an SVC
c. either (a) or (b)
d. neither (a) nor (b)
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Answer: (b).an SVC

6.
Frame Relay has _______.
a. only the physical layer
b. only the data link
c. the physical and data link layers
d. the physical, data link, and network layers
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Answer: (c).the physical and data link layers

7.
At the data link layer, Frame Relay uses a protocol that supports _____control.
a. flow
b. error
c. either (a) or (b)
d. neither (a) nor (b)
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Answer: (d).neither (a) nor (b)

8.
In Frame Relay, an address can be ________ bytes.
a. only 2
b. 2 to 3
c. 2 to 4
d. 4 to 8
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Answer: (c).2 to 4

9.
In Frame Relay, the EA field defines the number of bytes; it is _____ in the last byte of the address.
a. 0
b. 1
c. 2
d. 3
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Answer: (b).1

10.
To handle frames arriving from other protocols, Frame Relay uses a device called a _________.
a. VOFR
b. FRAD
c. MUX
d. none of the above
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Answer: (b).FRAD

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