Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 23
Q301:
Which layer in the TCP/IP protocol suite uses logical connections to communicate with the transport layer?
A. Internet layer
B. Network access layer
C. Application layer
D. Transport layer
Correct Answer:
A
Chapter: 23
Q302:
Fill in the blank: The logical connection between the TCP/IP layers ensures _______ in data flow.
A. Organized communication flow
B. Physical hardware connection
C. Data encryption
D. Packet fragmentation
Correct Answer:
A
Chapter: 23
Q303:
What is the primary role of logical connections in TCP/IP layers?
A. To establish and manage communication
B. To physically connect network devices
C. To route packets between networks
D. To provide encryption for data
Correct Answer:
A
Chapter: 23
Q304:
Fill in the blank: Logical connections between layers in the TCP/IP protocol suite create a(n) _______ communication model.
A. Structured
B. Random
C. Unstructured
D. Simple
Correct Answer:
A
Chapter: 23
Q305:
Which of the following best describes logical connections in the TCP/IP protocol suite?
A. Imaginary links that define data flow between layers
B. Physical cables used to connect devices
C. Direct connections between hardware devices
D. Layer 2 switching connections
Correct Answer:
A
Chapter: 24
Q306:
What is the primary function of the Application layer in the TCP/IP protocol suite?
A. To provide network services to end users
B. To route packets between networks
C. To control data flow between devices
D. To manage physical device connections
Correct Answer:
A
Chapter: 24
Q307:
Which of the following layers is responsible for packet routing in the TCP/IP protocol suite?
A. Internet layer
B. Transport layer
C. Application layer
D. Network access layer
Correct Answer:
A
Chapter: 24
Q308:
Fill in the blank: The Internet layer in the TCP/IP model is responsible for _______.
A. Routing and addressing
B. Providing data to end-users
C. Ensuring secure data transmission
D. Managing physical hardware connections
Correct Answer:
A
Chapter: 24
Q309:
What does the Network Access layer in the TCP/IP model do?
A. Provides data link and physical transmission
B. Routes packets between networks
C. Translates data for application processes
D. Manages security and encryption
Correct Answer:
A
Chapter: 24
Q310:
Fill in the blank: The _______ layer is responsible for establishing, maintaining, and terminating connections between applications.
A. Application
B. Transport
C. Internet
D. Network access
Correct Answer:
B
Chapter: 24
Q311:
Which of the following protocols operates at the Transport layer of the TCP/IP protocol suite?
A. TCP
B. IP
C. HTTP
D. Ethernet
Correct Answer:
A
Chapter: 24
Q312:
Which of the following layers is responsible for segmenting data and ensuring its integrity during transmission?
A. Transport layer
B. Network access layer
C. Application layer
D. Internet layer
Correct Answer:
A
Chapter: 24
Q313:
Fill in the blank: In the TCP/IP model, the _______ layer provides the necessary addressing and routing for data packets.
A. Internet
B. Network access
C. Application
D. Transport
Correct Answer:
A
Chapter: 25
Q314:
Which layer in the TCP/IP protocol suite manages the actual transmission of data between devices on a local network?
A. Network access layer
B. Internet layer
C. Transport layer
D. Application layer
Correct Answer:
A
Chapter: 25
Q315:
Fill in the blank: The _______ layer in the TCP/IP model ensures that data packets reach their destination by using IP addressing.
A. Transport layer
B. Internet layer
C. Network access layer
D. Application layer
Correct Answer:
B
Chapter: 25
Q316:
What protocol operates at the Application layer in the TCP/IP protocol suite?
A. HTTP
B. IP
C. TCP
D. Ethernet
Correct Answer:
A
Chapter: 25
Q317:
Fill in the blank: The _______ layer is responsible for error checking and ensuring reliable data transmission.
A. Transport layer
B. Internet layer
C. Application layer
D. Network access layer
Correct Answer:
A
Chapter: 25
Q318:
What type of communication does the Transport layer handle in the TCP/IP protocol suite?
A. End-to-end communication
B. Packet forwarding between routers
C. Data encryption
D. Physical address assignment
Correct Answer:
A
Chapter: 25
Q319:
Which of the following protocols operates at the Network Access layer of the TCP/IP model?
A. Ethernet
B. TCP
C. UDP
D. HTTP
Correct Answer:
A
Chapter: 26
Q320:
What is the main purpose of header encapsulation and decapsulation in the Internet Protocol Layering?
A. To add control information for routing
B. To encrypt data before transmission
C. To break data into smaller packets
D. To check for errors in data packets
Correct Answer:
A