Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 20
Q261:
What is one of the main advantages of separating service from implementation in a system?
A. Greater flexibility in future development
B. Reduced reliability
C. Increased downtime
D. Higher risk of failure
Correct Answer:
A
Chapter: 20
Q262:
Fill in the blank: The separation of service and implementation makes it easier to change the _______ without affecting the entire system.
A. Implementation
B. Service
C. Protocol
D. Data
Correct Answer:
A
Chapter: 20
Q263:
What is the main advantage of modularity in network protocol design?
A. Easier management and upgrading
B. Increased reliance on one large system
C. More expensive overall
D. Less flexibility
Correct Answer:
A
Chapter: 20
Q264:
Fill in the blank: When designing network protocols, reducing complexity typically results in _______.
A. Lower maintenance costs
B. Higher maintenance costs
C. More complicated network setup
D. Increased redundancy
Correct Answer:
A
Chapter: 20
Q265:
Which of the following is a key benefit of separating service and implementation?
A. Flexibility and ease of updates
B. Complexity in the system
C. Costly integration between components
D. Increased dependency between layers
Correct Answer:
A
Chapter: 21
Q266:
What is one of the key principles of bidirectional communication in protocol layering?
A. Each layer performs two opposite tasks in each direction
B. Each layer communicates in one direction only
C. Only the sending layer performs tasks
D. Communication occurs without layers
Correct Answer:
A
Chapter: 21
Q267:
Fill in the blank: In protocol layering, each layer performs _______ tasks in each direction.
A. Two opposite
B. Similar
C. Identical
D. One task
Correct Answer:
A
Chapter: 21
Q268:
Which of the following describes the requirement for objects under each layer in a protocol?
A. Two objects under each layer at both sites should be identical
B. Objects under each layer may vary from site to site
C. Only one object is required under each layer
D. Objects should be completely different
Correct Answer:
A
Chapter: 21
Q269:
Fill in the blank: To ensure proper communication, two objects under each layer at both sites should be _______.
A. Identical
B. Different
C. Independent
D. Complementary
Correct Answer:
A
Chapter: 21
Q270:
What is the term used to describe an imaginary connection between each layer in protocol layering?
A. Logical connections
B. Physical connections
C. Direct connections
D. Real connections
Correct Answer:
A
Chapter: 21
Q271:
Fill in the blank: An imaginary connection between each layer in protocol layering is known as a _______.
A. Logical connection
B. Physical connection
C. Data flow
D. Direct connection
Correct Answer:
A
Chapter: 21
Q272:
Which of the following principles is a key aspect of protocol layering?
A. Two objects under each layer should be identical
B. One object under each layer should be unique
C. Each layer communicates independently
D. Layers communicate in only one direction
Correct Answer:
A
Chapter: 21
Q273:
Fill in the blank: In protocol layering, each layer communicates _______ with the other layers.
A. Bidirectionally
B. Unidirectionally
C. Only with adjacent layers
D. Independently of other layers
Correct Answer:
A
Chapter: 21
Q274:
Which of the following is an advantage of having bidirectional communication in protocol layering?
A. It allows for the sending and receiving of tasks in both directions
B. It makes the system more complex
C. It limits communication to one direction
D. It reduces the efficiency of the system
Correct Answer:
A
Chapter: 21
Q275:
Fill in the blank: The concept of two opposite tasks performed by each layer in protocol layering ensures _______.
A. Efficient data transmission in both directions
B. Communication only in one direction
C. Independent operations at each layer
D. Reduced network congestion
Correct Answer:
A
Chapter: 21
Q276:
Which of the following best describes the relationship between layers in a protocol?
A. Logical connections between layers
B. Physical dependencies between layers
C. Each layer has no interaction with others
D. Layers are connected through real cables
Correct Answer:
A
Chapter: 21
Q277:
Fill in the blank: In protocol layering, logical connections ensure _______ between layers.
A. Proper communication
B. Data loss
C. Overlap in functions
D. Data corruption
Correct Answer:
A
Chapter: 21
Q278:
What does the principle of identical objects under each layer ensure in protocol layering?
A. It ensures compatibility across sites
B. It reduces the need for separate layers
C. It simplifies communication between layers
D. It limits communication to one site
Correct Answer:
A
Chapter: 21
Q279:
Fill in the blank: In protocol layering, the requirement for identical objects under each layer ensures _______
A. Compatibility across different sites
B. More complex connections
C. Fewer communication paths
D. Delays in data transmission
Correct Answer:
A
Chapter: 22
Q280:
What is the TCP/IP protocol suite primarily used for?
A. Internet communication
B. File sharing
C. Data encryption
D. Email services
Correct Answer:
A