Concept check: What does CPU stand for?
Choose an option to check your answer.
Correct Answer: A. Central Processing Unit
Explanation:
CPU means Central Processing Unit.
MCQ Collection
Pakistan MCQs
Practice Pakistan questions with answers and explanations.
Concept check: Which memory loses its contents when power is removed?
Choose an option to check your answer.
Correct Answer: B. RAM
Explanation:
RAM is volatile memory and requires power to retain data.
Concept check: Which language is directly executed by a computer processor?
Choose an option to check your answer.
Correct Answer: C. Machine language
Explanation:
The processor executes machine instructions encoded in binary.
Which number system uses digits 0 through 7?
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Correct Answer: D. Octal
Explanation:
The octal system has base 8 and uses digits 0–7.
Which HTML element is commonly used for the largest heading?
Choose an option to check your answer.
Correct Answer: A
Explanation:
The h1 element represents the highest-level heading.
Which logical operator reverses a Boolean value?
Choose an option to check your answer.
Correct Answer: B. NOT
Explanation:
NOT changes true to false and false to true.
What is a computer network?
Choose an option to check your answer.
Correct Answer: B. A group of connected devices that exchange data
Explanation:
A network connects devices so they can communicate and share resources.
Which device forwards packets between different networks?
Choose an option to check your answer.
Correct Answer: C. Router
Explanation:
A router selects paths and forwards packets between networks.
What does CPU stand for?
Choose an option to check your answer.
Correct Answer: D. Central Processing Unit
Explanation:
CPU means Central Processing Unit.
Which memory loses its contents when power is removed?
Choose an option to check your answer.
Correct Answer: A. RAM
Explanation:
RAM is volatile memory and requires power to retain data.
Which language is directly executed by a computer processor?
Choose an option to check your answer.
Correct Answer: B. Machine language
Explanation:
The processor executes machine instructions encoded in binary.
What is the purpose of a compiler?
Choose an option to check your answer.
Correct Answer: C. Translate source code into another executable or lower-level form
Explanation:
A compiler translates source code before execution.