In MS Access, what is a 'Primary Key'? MCQ with Answer and Explanation

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In MS Access, what is a 'Primary Key'?

A. A field that allows duplicate values

B. A field used for sorting

C. A field that stores external data

D. A field that uniquely identifies each record in a table

Answer: Option D

Solution (By JKSSB Mock Tests)

A Primary Key is a field (or combination of fields) that uniquely identifies each record in a table. It cannot contain null or duplicate values.

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Which of the following is not a valid way to start a new slide in MS PowerPoint?

A. New Slide button on Home tab

B. Right-click in the slide pane and select New Slide

C. Ctrl + N

D. Ctrl + M

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Correct Answer: Option C

Explanation:
Ctrl + N opens a new presentation, not a new slide. Ctrl + M inserts a new slide. The other options insert a new slide.

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Question #2

In MS Word, to create a table by drawing, use:

A. Home -> Table

B. Layout -> Draw Table

C. Design -> Table -> Draw

D. Insert -> Table -> Draw Table

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Correct Answer: Option D

Explanation:
Insert tab -> Table -> Draw Table.

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Question #3

In MS Access, which data type stores a calculated value that depends on other fields?

A. Calculated

B. Memo

C. Number

D. AutoNumber

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Correct Answer: Option A

Explanation:
Calculated data type creates a field whose value is computed.

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