Selected MCQ

Current Question
Primary key is ____.
  • A. Uniquely identifies each record
  • B. Cannot be repeated
  • C. AutoNumber is an example of a Primary Key
  • D. All of these
Correct Answer: D
Explanation:
A primary key uniquely identifies each record, cannot be repeated, and an AutoNumber is a common way to create one.
Related Question 1
What is the primary purpose of the Autocorrect feature in Microsoft Word?
  • A. Formula
  • B. Grammatical Mistakes
  • C. Misspellings
  • D. None of these
Correct Answer: C
Explanation:
AutoCorrect mainly fixes spelling mistakes.
Related Question 2
The primary purpose of an operating system is ____.
  • A. To make the most efficient use of the computer hardware
  • B. To allow people to use the computer
  • C. To keep systems programmers employed
  • D. To allow computers to be easier to use
Correct Answer: A
Explanation:
The main purpose of an OS is to manage hardware resources efficiently.
Related Question 3
The primary function of a register in CPU is ____.
  • A. To store data temporarily
  • B. To process instructions
  • C. To store program instructions
  • D. To store files
Correct Answer: A
Explanation:
Registers temporarily hold data and instructions during processing.
Related Question 4
Primary storage is ____ as compared to secondary storage.
  • A. Fast and inexpensive
  • B. Slow and inexpensive
  • C. Fast and expensive
  • D. Slow and expensive
Correct Answer: C
Explanation:
Primary storage (RAM) is fast but more expensive than secondary storage.
Related Question 5
What is the primary input device for a computer system?
  • A. The keyboard
  • B. A monitor
  • C. A speaker
  • D. A printer
Correct Answer: A
Explanation:
The keyboard is the most common primary input device.