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NAT I Computer Science Computer MCQs With Answers

Question # 1

OSI reference model has

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1 Layer

3 layers

6 layers

7 layers

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Question # 2

DBA defines

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Errors

Security

Information

Objects

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Question # 3

The degree of a table is the total number of

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Tuple

Attribute

Records

Fields

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Question # 4

Which of the following does not support the data in data base management system

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Standard

Redundant

Complete

Integrated

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Question # 5

If we dropped the pair of braces then what would happen?

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Only one statement to be executed in the if block

Only one statement to be executed in the else block

Only one statement to be executed in the if block and only one statement to be executed in the else block

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Question # 6

Database development process involves mapping of conceptual data model into:

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Object oriented data model

Network data model

Implementation model

Hierarchical data model

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Question # 7

IDE is a (an)

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Hardware

Interface

Sofware

Administrator

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Question # 8

The information contained in this type of memory is lost power is switched off:

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Disk Memory

Read only memory

Random access memory

Magnetic memory

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Question # 9

Which of the following special symbol is used within a variable?

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Question # 10

The virus attach itself to file which have the extension

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.exe

.com

.dll

Any of the above

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Question # 11

The shortcut key ALT+ ESC is used to

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Switch between open item

Cycle through items in the order they were opened

Cycle through screen elements in a window

None of the above

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