12th Class Computer Science MCQS Chapter 2

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12th Class Computer Science MCQS


Which of the following may be a temporary life?
back up file
master File
transaction file
none of these

The process of arranging data in a logical sequence is called:
Summerizing
Classifying
Data capturing
Sorting

The type of files from usage point of view include:
Backup file
Master file
Transaction file
All

A database is an organized collection of ——————– related data
badly
physically
loosely
logically

How many characters Memo can store?
1024
16
4
64,000

Which of the following operations can be performed on data after the data has been captured and manipulated?
Managing output result
Communication
None
Storage and retrival

Which of the following is also known as data set?
Field
Module
Record
File

Which of the following represents a collection of concepts that are used to describe the structure of a database:
Data warehouse
Data type
Data structure
Data model

A constraint that no primary key should contain nulls is known as:
Dependence
Normalization
Entity integrity
SQL query

A collection of data that consists of name ,address and email of a person is called:
Field
Byte
Character
Record

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