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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the main purpose of encoding messages?
💡 Hint: Think about how computers understand data.
Question 2
Easy
Define a prefix code in your own words.
💡 Hint: Consider how decoding would work with such a code.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
What does variable length encoding do?
- Uses the same number of bits for all characters
- Uses different lengths based on frequency
- Only applies to certain languages
💡 Hint: Think about how frequent letters would be represented.
Question 2
True or False: Prefix codes can lead to ambiguous decoding.
- True
- False
💡 Hint: Consider how decoding works with non-prefix codes.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
You have the frequencies: X=0.5, Y=0.25, Z=0.15, W=0.1. Create a Huffman tree and assign codes based on your construction.
💡 Hint: Pair the least frequent nodes first to build the tree iteratively.
Question 2
If the average length of encoded bits per letter for a given alphabet is calculated as 3.5, and you redesign the encoding to reduce it to 2.8, explain the impact on data transfer.
💡 Hint: Think about how much space bytes take up and how averages affect large data sets.
Challenge and get performance evaluation