Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 18
Q601:
In ATM, what do VPI and VCI fields represent?
A. Packet size and delay
B. Source and destination addresses
C. Destination path and channel
D. Protocol and bandwidth
Correct Answer:
C
Chapter: 18
Q602:
What is the size of the VPI in bits?
A. 4 bits
B. 8 bits
C. 16 bits
D. 24 bits
Correct Answer:
B
Chapter: 18
Q603:
How many bits are allocated to the VCI in ATM?
A. 8 bits
B. 12 bits
C. 16 bits
D. 24 bits
Correct Answer:
C
Chapter: 18
Q604:
The 24-bit VPI/VCI pair is generally treated as ________ by computers.
A. a cell type
B. a packet header
C. a connection identifier
D. a CRC checksum
Correct Answer:
C
Chapter: 18
Q605:
Which term is used for variance in transmission delay in networks?
A. Latency
B. Ping
C. Time-to-live
D. Jitter
Correct Answer:
D
Chapter: 18
Q606:
Jitter is significant in which type of services?
A. Voice
B. Video
C. Data
D. All of the above
Correct Answer:
D
Chapter: 18
Q607:
Which type of network issue can echo cancellation help reduce?
A. Latency
B. Jitter
C. Overhead
D. Packet loss
Correct Answer:
B
Chapter: 18
Q608:
ATM is designed to combine the goals of which networks?
A. LANs only
B. WANs only
C. LANs and WANs
D. Cellular networks
Correct Answer:
C
Chapter: 18
Q609:
ATM provides guaranteed service when ________.
A. Latency is high
B. Network is idle
C. Appropriate
D. Low cost is not needed
Correct Answer:
C
Chapter: 18
Q610:
LANs and WANs differ primarily in their ________.
A. IP versions
B. Speed
C. Base technologies
D. Payload sizes
Correct Answer:
C
Chapter: 18
Q611:
In connection-oriented service, what happens if the called party doesn't answer?
A. Connection is established
B. Caller retries immediately
C. Caller gives up after timeout
D. Data is sent anyway
Correct Answer:
C
Chapter: 18
Q612:
Which fields in ATM header are used to identify the cell's destination?
A. CRC and PRIO
B. VPI and VCI
C. TTL and Protocol
D. ID and Flag
Correct Answer:
B
Chapter: 18
Q613:
Which of the following resembles how connection-oriented networking works?
A. SMS messaging
B. Postal mail
C. Telephone call
D. Email
Correct Answer:
C
Chapter: 18
Q614:
In data communications, each party in a connection receives a ________.
A. User name
B. Binary connection identifier
C. Digital certificate
D. Connection time
Correct Answer:
B
Chapter: 18
Q615:
What do engineers sometimes refer to as the “cell tax” in ATM?
A. Data field
B. Header information
C. Traffic shaping
D. CRC check
Correct Answer:
B
Chapter: 18
Q616:
Which of the following is TRUE about ATM?
A. It uses large variable packets
B. It uses small fixed-sized packets
C. It only supports video
D. It uses MAC addressing
Correct Answer:
B
Chapter: 18
Q617:
ATM uses cells that are how many bytes long?
A. 53
B. 512
C. 48
D. 64
Correct Answer:
A
Chapter: 18
Q618:
ATM header contains how many bytes?
A. 5
B. 8
C. 10
D. 3
Correct Answer:
A
Chapter: 18
Q619:
Which part of the ATM cell carries the actual data?
A. Header
B. CRC
C. Octet
D. Data field
Correct Answer:
D
Chapter: 18
Q620:
ATM allows ________ connections using virtual paths and virtual channels.
A. Physical
B. Temporary
C. Electrical
D. Logical
Correct Answer:
D