Data Structures MCQs with Answers
Practice important Data Structures MCQs with answers and explanations.
Multiple Choice Questions
Q421: What is the space-saving advantage of using Huffman Encoding compared to standard ASCII encoding?
- A: It requires more storage space
- B: It compresses data by reducing the number of bits per character
- C: It cannot be used for compression
- D: It increases the overall file size
View Answer
B
Q422: What is the primary use of Huffman encoding?
- A: Data encryption
- B: Data compression
- C: Data encryption and compression
- D: Data formatting
View Answer
B
Q423: Who introduced the Huffman encoding algorithm?
- A: Claude Shannon
- B: David Huffman
- C: John McCarthy
- D: Donald Knuth
View Answer
B
Q424: In Huffman encoding, how are nodes with the lowest frequency handled?
- A: They are ignored until the end
- B: They are combined to form new nodes
- C: They are assigned higher priority
- D: They are removed from the tree
View Answer
B
Q425: How many bits does the Huffman code for the letter 'e' use in the given example?
- A: 3
- B: 4
- C: 5
- D: 6
View Answer
A
Q426: What is the length of the encoded message compared to ASCII encoding in the example?
- A: The same
- B: 20% shorter
- C: 40% shorter
- D: 54% shorter
View Answer
D
Q427: What is the frequency of the character 'a' in the provided frequency table?
- A: 2
- B: 3
- C: 4
- D: 5
View Answer
B
Q428: In Huffman encoding, what is the total frequency of the root node?
- A: 33
- B: 10
- C: 19
- D: 14
View Answer
A
Q429: What does the Huffman encoding tree help to achieve in data compression?
- A: Decrease file size by adding redundancy
- B: Increase file size by adding redundancy
- C: Decrease file size by optimizing bit length
- D: Increase file size by optimizing bit length
View Answer
C
Q430: How is the frequency of a new node determined in Huffman encoding?
- A: It is equal to the sum of the frequencies of its children
- B: It is half of the sum of the frequencies
- C: It is the average of the frequencies
- D: It is the difference between the frequencies
View Answer
A