Adaptive Practice
Number Systems and Encoding
10 questions • Earn up to 101 XP • First attempt — go for 100%!
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Question 1 of 10
⏱ 0:30
Easy
What is the decimal equivalent of the binary number 1011?
Easy
Which of the following number systems is base 8?
Medium
What is the hexadecimal equivalent of the decimal number 254?
Easy
Convert the binary number 1101101 to decimal.
Medium
What is the 2's complement of the binary number 0101?
Easy
Which encoding scheme uses 7 bits to represent each character?
Medium
If a hexadecimal number is 1A3, what is its binary equivalent?
Medium
How many bits are required to represent the decimal number 1000 in binary?
Medium
What is the decimal value of the octal number 725?
Hard
In Unicode encoding, how many bits are used to represent each character in UTF-16?