Data Structures MCQs with Answers
Practice important Data Structures MCQs with answers and explanations.
Multiple Choice Questions
Q431: What kind of data structure is primarily used in Huffman encoding?
- A: Stack
- B: Queue
- C: Binary tree
- D: Graph
View Answer
C
Q432: How many characters were encoded in the example phrase "traversing threaded binary trees"?
- A: 32
- B: 33
- C: 34
- D: 31
View Answer
B
Q433: What will happen if the nodes are combined differently in Huffman encoding?
- A: The codes for the characters will remain the same
- B: The codes for the characters will be different
- C: The frequency of the characters will change
- D: The tree will not be built correctly
View Answer
B
Q434: What does the receiver need to decode the Huffman encoded message?
- A: Only the encoded message
- B: The original text message
- C: The tree structure used for encoding
- D: The frequency table
View Answer
C
Q435: In Huffman encoding, what is the first step in creating the Huffman tree?
- A: Assigning codes to each character
- B: Listing all characters with their frequencies
- C: Combining nodes with the highest frequency
- D: Assigning values to tree nodes
View Answer
B
Q436: What type of coding does Huffman encoding use for characters with higher frequency?
- A: Shorter codes
- B: Longer codes
- C: Fixed-length codes
- D: Random codes
View Answer
A
Q437: What is the relationship between the number of internal nodes and external nodes in a binary tree?
- A: N internal nodes = N+1 external nodes
- B: N internal nodes = 2N external nodes
- C: N internal nodes = N-1 external nodes
- D: N internal nodes = N+1 external nodes
View Answer
D
Q438: How many links are there in a binary tree with N internal nodes?
- A: N links
- B: 2N links
- C: N+1 links
- D: N-1 links
View Answer
B
Q439: In a binary tree, if you have 8 internal nodes, how many external nodes are there?
- A: 8
- B: 9
- C: 10
- D: 11
View Answer
C
Q440: What is the total number of links in a binary tree with 9 nodes?
- A: 8
- B: 9
- C: 18
- D: 17
View Answer
C