Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 27
Q341:
Fill in the blank: The _______ layer of the OSI model is responsible for end-to-end communication and error control.
A. Transport
B. Network
C. Data Link
D. Application
Correct Answer:
A
Chapter: 27
Q342:
In the OSI model, which layer is responsible for ensuring reliable communication and error detection?
A. Data Link Layer
B. Application Layer
C. Transport Layer
D. Network Layer
Correct Answer:
C
Chapter: 27
Q343:
Fill in the blank: The _______ layer in the OSI model controls the flow of data across the network.
A. Transport
B. Network
C. Data Link
D. Physical
Correct Answer:
A
Chapter: 27
Q344:
Which of the following is NOT a function of the OSI Presentation Layer?
A. Data compression
B. Data encryption
C. Routing
D. Data translation
Correct Answer:
C
Chapter: 27
Q345:
Which of the following protocols would be found in the TCP/IP model but NOT in the OSI model?
A. HTTP
B. FTP
C. IP
D. TCP
Correct Answer:
C
Chapter: 27
Q346:
Fill in the blank: The _______ layer in the OSI model handles routing and forwarding of data.
A. Network Layer
B. Data Link Layer
C. Application Layer
D. Transport Layer
Correct Answer:
A
Chapter: 27
Q347:
What is the primary reason the OSI model was created by ISO?
A. To define universal standards for network communication
B. To provide a simplified protocol for data transfer
C. To introduce new protocols for communication
D. To create a standard for physical media
Correct Answer:
A
Chapter: 27
Q348:
Fill in the blank: The OSI model combines both the Session and Presentation layers into the _______ layer in the TCP/IP model.
A. Application
B. Transport
C. Data Link
D. Network
Correct Answer:
A
Chapter: 28
Q349:
What is the primary focus of data communication?
A. Transmission of data between devices
B. Management of computer networks
C. Internet connectivity
D. Designing hardware systems
Correct Answer:
A
Chapter: 28
Q350:
Which of the following is a key difference between data communication and computer networking?
A. Data communication focuses on data transfer only
B. Computer networking deals with network design
C. Data communication is limited to computers
D. Computer networking uses analog signals
Correct Answer:
A
Chapter: 28
Q351:
Fill in the blank: Data communication primarily involves the transmission of _______ between devices.
A. data
B. software
C. hardware
D. power
Correct Answer:
A
Chapter: 28
Q352:
Which of the following protocols is commonly used in computer networks?
A. HTTP
B. Bluetooth
C. Ethernet
D. All of the above
Correct Answer:
D
Chapter: 28
Q353:
Which is NOT an example of data communication?
A. Sending a text message
B. Transferring files between computers
C. Sharing a printer over a network
D. Printing a document on a local printer
Correct Answer:
D
Chapter: 28
Q354:
Fill in the blank: The primary goal of a computer network is to _______ between different devices and systems.
A. share resources
B. transfer power
C. store data
D. encrypt communications
Correct Answer:
A
Chapter: 28
Q355:
Which of the following is an example of computer networking?
A. Connecting multiple computers via Wi-Fi
B. Transmitting data from one computer to another
C. Connecting two devices using Bluetooth
D. Sending data over a USB cable
Correct Answer:
A
Chapter: 28
Q356:
Fill in the blank: Data communication can occur through various _______ such as fiber optics, cables, and wireless signals.
A. media
B. protocols
C. devices
D. applications
Correct Answer:
A
Chapter: 28
Q357:
What distinguishes computer networks from data communication?
A. Computer networks focus on interconnected devices
B. Data communication only focuses on the physical medium
C. Networking systems are only for internet use
D. Data communication cannot involve multiple devices
Correct Answer:
A
Chapter: 28
Q358:
Which of the following is NOT a common data communication method?
A. Wireless transmission
B. Optical fiber transmission
C. Data encryption
D. Serial data transmission
Correct Answer:
C
Chapter: 28
Q359:
Fill in the blank: Computer networks allow devices to communicate with each other over _______ to share resources.
A. a network
B. data cables
C. data packets
D. protocols
Correct Answer:
A
Chapter: 28
Q360:
Which of the following devices is most commonly associated with computer networks?
A. Router
B. Printer
C. Camera
D. Speaker
Correct Answer:
A