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Computer Basics

Description: Computer Aptitude Test
Number of Questions: 15
Created by:
Tags: Computer Aptitude Computer Knowledge
Attempted 0/15 Correct 0 Score 0

Which of the following is the smallest unit of storage?

  1. Bit

  2. Byte

  3. Character

  4. Digit

  5. Nibble


Correct Option: A
Explanation:

Its either 0 or 1, which does not specify any meaningful information alone but is the smallest unit of memory.

Which number system is used by computer science users?

  1. Binary

  2. Octal

  3. Decimal

  4. Hexadecimal

  5. None of the above


Correct Option: A
Explanation:

Binary is the number system used by computer science users with base 2.

Which is the most widely used code that represents each character as a unique 8-bit code in computer system?

  1. ASCII

  2. ACSII

  3. Bytecode

  4. Hexadecimal code

  5. Binary code


Correct Option: A
Explanation:

ASCII is the 8-bit code widely used to represent each character in computer system.

How many unique numbers can a byte represent in computer system?

  1. 8

  2. 255

  3. 256

  4. 1024

  5. None of these


Correct Option: C
Explanation:

from 0 to 255 = 256

How is display size of any monitor measured?

  1. Length X Breadth

  2. Vertically

  3. Horizontally

  4. Diagonally

  5. Megapixel


Correct Option: D
Explanation:

Monitor size is always measured diagonally. This is applicable to most of the visual display units.

Expand OCR.

  1. Ostensibly Characterised Reader

  2. Original Code Reader

  3. Optical Coding Recogniser

  4. Original Character Reader

  5. Optical Character Recognition


Correct Option: E
Explanation:

Optical Character Recognition or OCR is the mechanical or electronic conversion of scanned images of handwritten, typewritten or printed material.

In switch-case control, the case keyword is followed by which type of variables?

  1. Integer and float

  2. String and float

  3. Character and string

  4. Integer or character

  5. Float and double


Correct Option: D
Explanation:

Only integer or character variables are used with case keyword.

What is the standard extension of England in context to domain naming on internet?

  1. .in

  2. .uk

  3. .us

  4. .ing

  5. .au


Correct Option: B
Explanation:

Extension of England and abbreviation of United Kingdom

Which database(s) is/are created automatically when SQL server is installed?

  1. Master

  2. Model

  3. Root

  4. Root and Master

  5. Master and Model


Correct Option: E
Explanation:

Both the databases are created while installing SQL server by default.

Expand SATA, which is used as hardware component to connect hard drives to a computer motherboard.

  1. Secondary Area Technology Attachment

  2. Secondary Advanced Technology Attachment

  3. Sedentary Advance Technology Attachment

  4. Serial Advanced Technology Attachment

  5. None of these


Correct Option: D
Explanation:

SATA stands for "Serial Advanced Technology Attachment" or "Serial ATA". It is an interface used to connect ATA hard drives to a computer's motherboard. SATA transfer rates start at 150MBps, which is significantly faster than even the fastest 100MBps ATA/100 drives.

Which keyboard key(s) can be used to click the start button in MS Windows?

  1. Ctrl + F1

  2. F1

  3. Ctrl + F2

  4. Ctrl + Tab

  5. Ctrl + Esc


Correct Option: E
Explanation:

Ctrl + Esc can be used instead of windows keys to click start in MS Windows.

What is the address name of the first element of an array?

  1. Main address

  2. Prime address

  3. First address

  4. Base address

  5. Initial address


Correct Option: D
Explanation:

Base address is the address of the first element in an array and that can be referred by the name of the array.

Write the syntax to delete a login.

  1. DELETE LOGIN login_name

  2. Truncate LOGIN login_name

  3. DROP LOGIN login_name

  4. DISABLE LOGIN login_name

  5. A login cannot be deleted but can only be disabled.


Correct Option: C
Explanation:

It is the actual syntax to drop a login.

A touch screen monitor is a/an ____ device.

  1. input

  2. output

  3. application

  4. input and output

  5. physical


Correct Option: D
Explanation:

Touch screen monitors are both input and output devices.

Write the correct syntax to create new login on the SQL server.

  1. CREATE LOGIN login_id USE password

  2. CREATE LOGIN login_id WITH USE password

  3. CREATE LOGIN login_id WITH PASSWORD password

  4. USE LOGIN login_id WITH PASSWORD password

  5. UPDATE LOGIN login_id WITH PASSWORD password


Correct Option: C
Explanation:

This is the correct syntax to create new login on SQL server.

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