Data Storage | MCQs

Explanation

Non – numeric data is any form of data that is measured in non-number  form.

It makes use of symbols and letters.

Such data can only be identified in a word format.

For example, employee address, date of birth, name, etc.

Explanation

Petabyte (PB), a unit of information equivalent to 1000 terabytes which is used, for example, to quantify computer memory or storage capacity.

Explanation

TB stands for Terabytes. 

Terabytes are the largest unit of storage 

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Megabyte 1024 kilobytes

Gigabyte         1024 megabytes

Terabyte         1024 gigabytes

Petabyte         1024 terabytes

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• Smallest to largest unit of storage: 

Byte (smallest)

KB

MB

GB

TB (Largest)

Explanation

A database is information that is set up for easy access, management and updating.

A bit is a binary digit and it is the smallest unit of data on a computer

AGM 24-12-2022

Explanation

Computer memory is of two basic types.

Primary memory(RAM and ROM) and Secondary memory(hard drive,CD,etc.

Explanation

The data dictionary is a part of a DBMS that stores metadata — details like table names, field names, data types, constraints, and relationships.

It helps the system manage and understand the structure of the database.

Explanation

An address is an identifiable location in computer memory where data is stored.

Each memory cell has a unique address used to access or modify data.

Explanation

MySQL, Microsoft Access, IBM DB2 are database management systems while Google is a search engine.

Explanation

One Terabyte (TB)= 1024 gigabytes (GB).

The size of information in the computer is measured in Kilobytes (KB), Megabytes (MB), Gigabytes (GB), and Terabytes (TB).

1 Kilobyte (KB) = 1024 bytes

One Megabyte (MB) = 1024 Kilobytes (KB)

One Gigabyte (GB) =  1024 Megabytes MB?

Explanation

• DVD is an optical disk technology with a  4 to 5 gigabytes storage for videos, audio or other information.
• DVD stands for Digital Versatile Disk.
  
• DVD is an example of Optical Disk. 
• DVD is a storage device.