Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 204
Q3181:
What is the primary function of switches in an ATM network?
A. To route data between users
B. To store data for later retrieval
C. To convert analog signals to digital
D. To manage network traffic through routing tables
Correct Answer:
A
Chapter: 204
Q3182:
Which of the following represents a virtual connection in ATM networks?
A. VP (Virtual Path)
B. Packet Connection
C. Frame Path
D. Segment Path
Correct Answer:
A
Chapter: 204
Q3183:
Fill in the blank: ATM cells are transmitted over _______ connections to ensure efficient data transfer.
A. Virtual paths
B. Physical paths
C. Packet paths
D. Signal paths
Correct Answer:
A
Chapter: 204
Q3184:
What is a virtual connection identifier used for in ATM networks?
A. To identify data paths between endpoints
B. To secure data transmission
C. To enhance data encryption
D. To define routing tables
Correct Answer:
A
Chapter: 204
Q3185:
In an ATM network, what is the role of the ATM cell?
A. To carry data between endpoints
B. To store data temporarily
C. To control network operations
D. To validate data integrity
Correct Answer:
A
Chapter: 204
Q3186:
What is the size of a standard ATM cell?
A. 53 bytes
B. 64 bytes
C. 128 bytes
D. 256 bytes
Correct Answer:
A
Chapter: 204
Q3187:
Which of the following is true about the structure of an ATM cell?
A. It has a 5-byte header and a 48-byte payload
B. It has a 48-byte header and a 5-byte payload
C. It has a 40-byte header and a 13-byte payload
D. It has a 20-byte header and a 33-byte payload
Correct Answer:
A
Chapter: 204
Q3188:
Fill in the blank: In an ATM cell, the payload contains _______ bytes of data.
A. 48 bytes
B. 53 bytes
C. 64 bytes
D. 128 bytes
Correct Answer:
A
Chapter: 204
Q3189:
Which of the following is true about the ATM layer?
A. It is responsible for the transmission of ATM cells
B. It handles network routing and switching
C. It handles error detection and correction
D. It is used for data encryption
Correct Answer:
A
Chapter: 204
Q3190:
Fill in the blank: The ATM Layer is responsible for transmitting _______ between the endpoints.
A. ATM cells
B. Network packets
C. Data frames
D. Control signals
Correct Answer:
A
Chapter: 204
Q3191:
Which of the following is an example of a virtual connection identifier used in ATM networks?
A. VPI (Virtual Path Identifier)
B. IP address
C. Subnet mask
D. Port number
Correct Answer:
A
Chapter: 204
Q3192:
What does VCI stand for in ATM networks?
A. Virtual Channel Identifier
B. Virtual Connection Identifier
C. Variable Channel Identifier
D. Variable Control Interface
Correct Answer:
A
Chapter: 204
Q3193:
Fill in the blank: In an ATM network, the VPI and VCI are used to identify _______ connections.
A. Virtual channel
B. Physical channel
C. Control channel
D. Signal channel
Correct Answer:
A
Chapter: 204
Q3194:
Which of the following identifies the virtual connection in an ATM network's UNI?
A. VCI and VPI
B. IP address and subnet mask
C. Port number and protocol
D. Network address and gateway
Correct Answer:
A
Chapter: 204
Q3195:
What does the ATM switch do with the VPI/VCI?
A. It uses it to route cells to the correct destination
B. It encrypts the cells for security
C. It compresses the cells for faster transmission
D. It verifies the cells' data integrity
Correct Answer:
A
Chapter: 205
Q3196:
What is one of the fastest growing technologies today?
A. Wireless communication
B. Wired communication
C. Internet of Things
D. Cloud computing
Correct Answer:
A
Chapter: 205
Q3197:
Where can Wireless LANs commonly be found?
A. College campuses, office buildings, and public areas
B. Only in private homes
C. Only in factories
D. Only in hospitals
Correct Answer:
A
Chapter: 205
Q3198:
What is the primary advantage of Wireless LANs over wired LANs?
A. Flexibility of device connection
B. Speed of data transmission
C. Lower costs
D. Better security
Correct Answer:
A
Chapter: 205
Q3199:
Wireless LANs eliminate the need for _______.
A. Cables
B. Power supplies
C. Antennas
D. Adapters
Correct Answer:
A
Chapter: 205
Q3200:
Fill in the blank: The demand for connecting devices without the use of _______ is increasing everywhere.
A. cables
B. antennas
C. routers
D. hubs
Correct Answer:
A