
ICT Quiz
Authored by Vishva V
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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following best defines entropy in information theory?
The measure of energy in a system
The measure of uncertainty in a random variable
The measure of processing speed in a computer
The measure of redundancy in a system
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The entropy of a fair coin toss (head or tail) is:
0
0.5
1
2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the relation between probability and information content?
Higher probability means higher information
Higher probability means lower information
Probability and information are unrelated
Probability always equals information
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Mutual information between two random variables measures:
The total information in both variables
The information shared between the two variables
The entropy of a single variable
The probability of occurrence of a variable
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a property of entropy?
Entropy is always negative
Entropy is independent of probability
Entropy is maximized for a uniform distribution
Entropy is always zero for random variables
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which coding technique provides optimal prefix codes?
Arithmetic coding
Huffman coding
Shannon coding
Run-length coding
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which theorem states that no compression scheme can transmit more than the channel capacity?
Nyquist theorem
Shannon's theorem
Huffman's theorem
Fanon's theorem
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