Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1951: Fill in the blank: Redundancy in data transmission is achieved through various _______.
- A: algorithms
- B: coding schemes
- C: protocols
- D: interfaces
View Answer
B
Q1952: Which of the following is true about redundancy in data transmission?
- A: The sender adds redundant bits to create a relationship between data bits and redundant bits
- B: The receiver removes redundant bits to save bandwidth
- C: The redundant bits are used for compression purposes
- D: Redundancy reduces the robustness of the transmission
View Answer
A
Q1953: Fill in the blank: The ratio of redundant bits to data bits is an important factor in any _______ scheme.
- A: coding
- B: encryption
- C: decoding
- D: security
View Answer
A
Q1954: What does a coding scheme involve?
- A: Adding redundant bits to data for error detection and correction
- B: Compressing data for faster transmission
- C: Encrypting data for secure transmission
- D: None of the above
View Answer
A
Q1955: Which of the following factors are important in any coding scheme?
- A: The ratio of redundant bits to data bits and the robustness of the process
- B: The number of data bits only
- C: The time taken for transmission only
- D: The speed of encoding and decoding
View Answer
A
Q1956: Fill in the blank: Redundant bits in a coding scheme help the receiver to _______ errors.
- A: ignore
- B: detect
- C: correct
- D: transfer
View Answer
B
Q1957: Which of the following is NOT a purpose of redundant bits in data transmission?
- A: To ensure error-free transmission
- B: To reduce the amount of data sent
- C: To detect and correct errors
- D: To create a relationship between data and redundant bits
View Answer
B
Q1958: Fill in the blank: In a coding scheme, the sender creates a _______ between redundant bits and actual data bits.
- A: relationship
- B: relationship with encryption
- C: partition
- D: connection
View Answer
A
Q1959: What is the role of redundant bits in error detection?
- A: To allow the receiver to create a relationship between data bits and redundant bits
- B: To make data transmission faster
- C: To ensure security of data
- D: To increase data size
View Answer
A
Q1960: What do coding schemes help to achieve in data transmission?
- A: Compression and speed
- B: Error detection and correction
- C: Encryption of sensitive data
- D: Minimizing transmission time
View Answer
B