Neco 2020 Computer Studies Question 49

Practice objective / multiple choice question 49 from the 2020 Neco Computer Studies examination.

Neco 2020 Computer Studies Objective / Multiple Choice Medium Difficulty

Question 49 NECO • 2020 • COMPUTER_STUDIES • objective

A source emits five symbols with frequencies: A = 45, B = 25, C = 15, D = 10, E = 5 (total 100).\n\n(a) Construct an optimal Huffman code for these symbols and give the length of the code word for each symbol.\n(b) Compute the average code‑word length (in bits per symbol).\n(c) Compute the source entropy \(H = -\sum p_i \log_{2} p_i\) (in bits).\nIs the average code‑word length within 1 bit of the entropy? Answer "Yes" or "No".

A. 3 bits; Yes

B. 2 bits; No

Correct Answer C. 2 bits; Yes

D. 3 bits; No

Correct Answer

Correct Option:

2 bits; Yes

This is Neco 2020 Computer Studies Question 49. It is one of the objective questions from the 2020 Neco Computer Studies examination.

Difficulty level: Medium .

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