Class 9 Computer Science · Chapter 1 · Test 3
Extra Mcqs Test 2
25 MCQs
26 questions · 20 min · 26 marks
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Sample questions
The first 5 of 26. Try each one, then tap to see the answer.
Question 1
Which components are involved in the decoding stage?
- AOnly ALU
- BOnly registers
- CBoth ALU & CU
- DOnly CU
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Answer: D
During the decoding stage the Control Unit decodes the instruction. The CU determines what operation needs to be performed and prepares the required control signals.
Question 2
The base of the binary number system is:
- A2
- B8
- C10
- D16
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Answer: A
Binary uses only two digits, 0 and 1. Therefore, its base is 2.
Question 3
10010 to the 0 power is:
- A0
- B1
- C10010
- D100100
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Answer: B
Any non-zero number raised to the power of zero equals 1. Therefore, 10010⁰ equals 1.
Question 4
How many digits are used in the octal number system?
- A2
- B8
- C10
- D16
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Answer: B
The octal number system uses eight digits. These digits are 0 through 7.
Question 5
How many digits are used in the binary number system?
- A2
- B8
- C10
- D16
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Answer: A
The binary number system uses two digits. These digits are 0 and 1.
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