Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 126
Q1781:
Which of the following services ensures data is properly framed before transmission?
A. Congestion Control
B. Framing
C. Flow Control
D. Error Control
Correct Answer:
B
Chapter: 126
Q1782:
Communication at the Data-Link Layer is possible only through ______.
A. Physical addressing
B. Transport protocols
C. Error correction
D. Flow tables
Correct Answer:
A
Chapter: 126
Q1783:
Fill in the blank: The Data-Link Layer receives services from the ______ layer.
A. Application
B. Transport
C. Physical
D. Session
Correct Answer:
C
Chapter: 126
Q1784:
Which of the following correctly lists a set of services provided by the Data-Link Layer?
A. Error correction, Flow control, DNS lookup
B. Framing, Flow control, Error control
C. Address resolution, Routing, Congestion
D. Encryption, DNS, Error control
Correct Answer:
B
Chapter: 126
Q1785:
Which of these is a feature of the Data-Link Layer?
A. Routing decisions
B. Email delivery
C. Flow control
D. Domain resolution
Correct Answer:
C
Chapter: 127
Q1786:
Which layer receives services from the Data-Link Layer?
A. Physical Layer
B. Transport Layer
C. Network Layer
D. Session Layer
Correct Answer:
C
Chapter: 127
Q1787:
Which layer provides services to the Data-Link Layer?
A. Application Layer
B. Network Layer
C. Transport Layer
D. Physical Layer
Correct Answer:
D
Chapter: 127
Q1788:
The Data-Link Layer provides ______ to the Network Layer.
A. Application access
B. Data encryption
C. Communication services
D. Framing services
Correct Answer:
C
Chapter: 127
Q1789:
Fill in the blank: _______ is responsible for converting data into frames for transmission.
A. Flow Control
B. Framing
C. Error Control
D. Multiplexing
Correct Answer:
B
Chapter: 127
Q1790:
Which of the following is NOT a function of the Data-Link Layer?
A. Framing
B. Flow Control
C. DNS lookup
D. Error Control
Correct Answer:
C
Chapter: 127
Q1791:
What ensures that data is transmitted without overwhelming the receiver?
A. Error Control
B. Flow Control
C. Congestion Control
D. Framing
Correct Answer:
B
Chapter: 127
Q1792:
Which function of the Data-Link Layer detects and retransmits lost or corrupted frames?
A. Error Control
B. Congestion Control
C. Framing
D. Routing
Correct Answer:
A
Chapter: 127
Q1793:
What is the primary purpose of congestion control in the Data-Link Layer?
A. To manage bandwidth
B. To control hardware
C. To prevent network overload
D. To frame data
Correct Answer:
C
Chapter: 127
Q1794:
Fill in the blank: The Data-Link Layer receives services from the ______ Layer.
A. Network
B. Transport
C. Physical
D. Application
Correct Answer:
C
Chapter: 127
Q1795:
The service that segments data into frames at the Data-Link Layer is called ______.
A. Error Control
B. Flow Control
C. Framing
D. Congestion Control
Correct Answer:
C
Chapter: 127
Q1796:
Which of the following functions is common to both Flow Control and Congestion Control?
A. Managing IP addresses
B. Managing error detection
C. Managing data rate
D. Managing session BGPs
Correct Answer:
C
Chapter: 127
Q1797:
Which of the following ensures data integrity at the Data-Link Layer?
A. Routing
B. Error Control
C. DNS
D. Congestion Control
Correct Answer:
B
Chapter: 127
Q1798:
Fill in the blank: ______ control helps detect and correct transmission errors.
A. Flow
B. Error
C. Traffic
D. Session
Correct Answer:
B
Chapter: 127
Q1799:
Which layer provides services such as error detection and flow control to the Network Layer?
A. Application Layer
B. Session Layer
C. Data-Link Layer
D. Transport Layer
Correct Answer:
C
Chapter: 128
Q1800:
What connects two nodes physically for communication?
A. Router
B. Transmission medium
C. Bridge
D. Firewall
Correct Answer:
B