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Chapter 13: Computer Networks Exam Tests

Computer Networks MCQs - Chapter 13

# Error Detection and Correction Multiple Choice Questions (MCQ) PDF - 1

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## Error Detection & Correction MCQ Quiz : Test 1

MCQ 1: How many bits in the data unit have changed in a single bit error?

A) only 1
B) two bits
C) three bits
D) four bits

MCQ 2: To guarantee the detection of up to s errors in all cases, the minimum hamming distance in a block code must be

A) s
B) s+1
C) s-1
D) 0

MCQ 3: How can we represent the number 21 in one's complement arithmetic using only four bits?

A) 1010
B) 111
C) 101
D) 11111

MCQ 4: In block coding, we divide our message into blocks, is called

A) code blocks
B) packet blocks
C) code words
D) datawords

MCQ 5: What is the parity bit for 1001011?

A) 0
B) 1
C) 2
D) none

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