Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 14
Q161:
What is the primary challenge of packet-switched networks?
A. High cost
B. Data ordering and reliability
C. Complex circuit design
D. Limited scalability
Correct Answer:
B
Chapter: 14
Q162:
Packet-switched networks divide data into _______.
A. Frames
B. Packets
C. Blocks
D. Streams
Correct Answer:
B
Chapter: 14
Q163:
In circuit switching, what happens when the communication ends?
A. The circuit remains open
B. The circuit is released
C. The data is stored
D. The network shuts down
Correct Answer:
B
Chapter: 14
Q164:
Which of these is an example of a packet-switched network?
A. PSTN (Public Switched Telephone Network)
B. Internet
C. Analog phone system
D. Telegraphy
Correct Answer:
B
Chapter: 14
Q165:
Fill in the blank: Packet-switched networks rely on _______ for routing data.
A. Static connections
B. Dynamic routing algorithms
C. Manual configurations
D. Fixed circuits
Correct Answer:
B
Chapter: 14
Q166:
What is a significant advantage of packet-switched networks?
A. High latency
B. Scalability and resource sharing
C. High cost
D. Fixed bandwidth
Correct Answer:
B
Chapter: 14
Q167:
Which type of network requires call setup before data transfer?
A. Packet-Switched
B. Circuit-Switched
C. Broadcast Network
D. None of these
Correct Answer:
B
Chapter: 14
Q168:
Fill in the blank: In _______ networks, resources are reserved for the duration of a connection.
A. Packet-Switched
B. Circuit-Switched
C. Star Network
D. Hybrid Network
Correct Answer:
B
Chapter: 14
Q169:
Which type of switching is primarily used in the Internet?
A. Circuit-Switched
B. Packet-Switched
C. Message-Switched
D. Hybrid Switching
Correct Answer:
B
Chapter: 14
Q170:
What does a packet contain in a packet-switched network?
A. Header, data, and trailer
B. Only data
C. Data and metadata
D. Only a header
Correct Answer:
A
Chapter: 14
Q171:
Fill in the blank: _______ networks are ideal for applications requiring constant bandwidth, such as voice calls.
A. Packet-Switched
B. Circuit-Switched
C. Peer-to-Peer
D. Cloud Networks
Correct Answer:
B
Chapter: 14
Q172:
Which of the following best describes circuit switching?
A. Real-time, sequential data delivery
B. Data divided into packets
C. Dynamic resource allocation
D. On-demand connections
Correct Answer:
A
Chapter: 14
Q173:
In packet-switched networks, what handles the reassembly of packets?
A. Routers
B. Switches
C. Destination host
D. Source host
Correct Answer:
C
Chapter: 14
Q174:
What determines the path of data packets in a packet-switched network?
A. Fixed routes
B. Pre-established paths
C. Dynamic routing tables
D. Dedicated circuits
Correct Answer:
C
Chapter: 14
Q175:
Fill in the blank: Circuit-switched networks use _______ switching.
A. Point-to-Point
B. End-to-End
C. Path-based
D. Continuous
Correct Answer:
B
Chapter: 14
Q176:
What is a common drawback of packet-switched networks?
A. Poor resource utilization
B. Packet loss and delay
C. Lack of scalability
D. High maintenance cost
Correct Answer:
B
Chapter: 14
Q177:
Packet-switched networks are better suited for _______.
A. Low-latency communication
B. High-latency and bursty data
C. Static connections
D. Dedicated bandwidth
Correct Answer:
B
Chapter: 14
Q178:
Fill in the blank: In a circuit-switched network, _______ must be established before communication begins.
A. A router
B. A dedicated circuit
C. A packet route
D. A data connection
Correct Answer:
B
Chapter: 15
Q179:
What does the term "internet" with a lowercase "i" refer to?
A. A single global network
B. Two or more interconnected networks
C. A network protocol
D. A private network
Correct Answer:
B
Chapter: 15
Q180:
The Internet with an uppercase "I" is composed of _______.
A. A single large network
B. Thousands of interconnected networks
C. Peer-to-peer networks
D. Local Area Networks
Correct Answer:
B