Computer Operator Written Exam Questions PDF 2025

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Computer Operator Written Exam Questions. We provided the Computer Operator Written Exam Questions and answers pdf bd in this post for free so that you can practice well for the exam.

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Computer Operator Mock Test with Answers for Students

Quick Quiz

Computer Operator QnA PDF Free Download

The first IBM PC did not have any?

1. Disk drive

2. RAM

3. ROM

4. Port

Option 3 – ROM

The digital computer was developed primarily in ( Computer Operator Written Exam MCQs )

1. USSR

2. Japan

3. USA

4. UK

Option 4 – UK

Programs that protect a disk from catching an infection are called:

1. Virus

2. Vaccines

3. Antidotes

4. All of the above

Option 3 – Antidotes

The organized set of instructions to direct the computer in solving a problem is called? ( Computer Operator Written Exam MCQs )

1. Program

2. Flowchart

3. Algorithm

4. All of the above

Option 4 – All of the above

CAD stands for

1. Computer-Aided Design

2. Computer Algorithm for Design

3. Computer Application in Design

4. All of the above

Option 1 – Computer-Aided Design

When did computer viruses land in India for the first time?

1. Late 1988

2. Early 1984

3. Early 1981

4. Late 1982

Option 1 – Late 1988

Which of the following is a part of the Central Processing Unit? ( Computer Operator Written Exam MCQs )

1. Printer

2. Keyboard

3. Mouse

4. Arithmetic Logic Unit

Option 4 – Arithmetic Logic Unit

In computer technology, a compiler means

1. A person who computers source programs

2. The same thing as a programmer

3. Keypunch operator

4. A program, which translates source program into object program

Option 4 – A program, which translates source program into object program

Which American Computer Company is called Big Blue? ( Computer Operator Written Exam MCQs )

1. Microsoft Corpn

2. Compaq Corpn

3. IBM

4. Tandy Svenson

Option 3 – IBM

Which method of database recovery involves frequent simultaneous copying of the database to maintain two or more complete copies of the database?

1. Mirroring

2. Reprocessing

3. Rollback

4. Roll forward

5. None of these

Option 1 – Mirroring

To add an internal card to the computer, it must have an open …….. ( Computer Operator Written Exam MCQs )

1. expansion slot

2. bay

3. bus

4. USB port

5. None of these

Option 1 – expansion slot

Which of the following is not true of extranets?

1. Offers security

2. Provides controlled access

3. Popularly used in transactions such as purchasing

4. Connects only internal personnel

5. None of these

Option 4 – Connects only internal personnel

802 11 describes ….. networks. ( Computer Operator Written Exam MCQs )

1. coaxial

2. fiber optic

3. wireless

4. copper

5. None of these

Option 3 – wireless

Which type of processing speed measurement is used primarily with supercomputers?

1. gigahertz

2. fractions of a second

3. flops

4. MIPS

5. None of these

Option 3 – flops

Data moves through the network in a structure called …..

1. payload

2. paybacks

3. datagrams

4. packets

5. tokens

Option 4 – packets

The ….. interface transmits one bit at a time. ( Computer Operator Written Exam MCQs )

1. parallel

2. SCSI

3. serial

4. FireWire

5. None of these

Option 3 – serial

Numbers that are written with base 10 are classified as ……..

a. Decimal number

b. Whole number

c. Hexadecimal number

d. Exponential Integers

Option a – Decimal number

A gate whose output is 0 only when inputs are different is called …….. ( Computer Operator Written Exam MCQs )

a. XOR

b. XNOR

c. NOR

d. NAND

Option a – XOR

The coding system allows non-English characters and special characters to be represented …….

a. ASCII

b. UNICODE

c. EBCDIC

d. All of these

Option b – UNICODE

The NAND gate is AND gate followed by ………

a. Not gate

b. AND gate

c. OR gate

d. Xor Gate

Option a – Not gate

The gate is also known as inverter. ( Computer Operator Written Exam MCQs )

a. OR

b. NOT

c. XOR

d. NOR

Option b – NOT

The most commonly used codes for representing bits are ……..

a. ASCII

b. BCD

c. EBCDIC

d. All of these

Option d – All of these

Determine the decimal equivalent of (456)8 ……..

a. (203)10

b. (302)10

c. (400)10

d. (402)10

Option b – (302)10

Determine the Octal equivalent of (432267)10 ………

a. (432267)8

b. (346731)8

c. (2164432)8

d. None of these

Option d – None of these

What type of information system would be recognized by digital circuits?

a. Hexadecimal system

b. Binary System

c. Both ‘1’ & ‘2’

d. Only roman system

Option b – Binary System

The hexadecimal number system consists of ………

a. 0 to 9

b. A to F

c. Both ‘1’ & ‘2’

d. Either ‘1’ or ‘2’

Option c – Both ‘1’ & ‘2’

The hexadecimal number system has …….. base

a. 2

b. 8

c. 10

d. 16

Option d – 16

To create a relationship between two tables

a) Drag the primary key of a table into the foreign key of another table

b) Drag the foreign key of a table into the primary key of another table

c) Drag any field from the parent table & drop it on the child table

d) Any of the above can be done to create a relationship

Option a – Drag the primary key of a table into the foreign key of another table

After entering all fields required for a table, if you realize that the third field is not needed, how will you remove?

a) You need to delete the whole table. There is no method to remove a particular field.

b) Delete all the fields from the third downwards and reenter the required fields again.

c) Select the third column in the datasheet view then Delete.

d) Select the third row in the table design view then Delete.

Option d – Select the third row in the table design view then Delete

When creating a new table which method can be used to choose fields from standard databases & tables

a) Create a table in Design View

b) Create a Table using wizard

c) Create a Table by Entering data

d) None of the above

Option b – Create a Table using wizard

What happens when you release the mouse pointer after you drop the primary key of a table into foreign key of another table?

a) A relationship is created

b) Edit relationship dialog box appears

c) Error occurs

d) Nothing happens

Option b – Edit relationship dialog box appears

How can you define a field so that when entering data for that field it will display ******* instead of actual typed text

a) Input mask

b) Validation Rule

c) Indexed

d) IME Mode

Option a – Input mask

To sort records in a table

a) Open the table, click on the field on which the sorting is to be done, then click the Sort button on the database toolbar

b) Open the table, click the Sort button on the database toolbar, choose the field based on which to sort, click OK

c) Click the field heading to sort it ascending or descending

d) All of the above

Option a – Open the table, click on the field on which the sorting is to be done, then click the Sort button on the database toolbar

Which is the name of the network topology in which there are bi-directional links between each possible node?

a. Ring

b. Star

c. Tree

d. Mesh

Option d – Mesh

How many bits are there in the Ethernet address?

a. 64 bits

b. 48 bits

c. 32 bits

d. 16 bits

Option b – 48 bits

Multiplexing involves ……… path(s) & ……… channels?

a. One, one

b. One, multiple

c. Multiple, one

d. Multiple, multiple

Option b – One, multiple

In OSI network architecture, the routing is performed by …….

a. Network layer

b. Data link layer

c. Transport layer

d. Session layer

Option a – Network layer

What type of resource is most likely to be a shared common resource in a computer network?

a. Printers

b. Speakers

c. Floppy disk drivers

d. Keyboard

Option a – Printers

Hub is associated with ……… network.

a. Bus

b. Ring

c. Star

d. Mesh

Option c – Star

P2P is a ……… application architecture

a. Client/server

b. Distributed

c. Centralized

d. 1-tier

Option a – Client/server

Which of the following represents the fastest data transmission speed?

a. Bandwidth

b. bps

c. gbps

d. kbps

Option c – gbps

An alternate name for the completely interconnected network topology is ………

a. Mesh

b. Star

c. Tree

d. Ring

Option a – Mesh

Which one of the following errors will be handled by the operating system?

A. None of the above

B. Lack of paper in the printer

C. All of the above

D. Power failure

Option c – All of the above

A word or (words) used in computing in a search to match a desired topic is called

A. Hint

B. Password

C. ID name

D. Keyboard

Option d – Keyboard

A modem that cannot be moved from its position is called

A. Acoustic coupler

B. Direct Connect

C. Intelligent Modem

D. None of these

Option b – Direct Connect

Which of the following will you consider as most secure?

A. Password

B. Login numeral

C. One Time Password

D. Login phrase

Option c – One Time Password

Which of the following is a programming language?

A. Lotus

B. MS-Word

C. Netscape

D. Pascal

Option d – Pascal

By an intranet we mean

A. Metropolitan Area Network

B. Personal network of top management of an organization

C. A network connecting all computers of an organization using Internet protocol

D. A LAN of an organization

Option c – A network connecting all computers of an organization using Internet protocol

The most common types of storage devices are

A. None of these

B. Magnetic

C. Optical

D. Persistent

Option b – Magnetic

The brain of any computer system is

A. Keyboard

B. Monitor

C. CPU

D. Control unit

Option c – CPU

Which of the following is the layer of a computer system between the hardware & the user program?

A. Application software

B. None of these

C. Operating system

D. Database

Option c – Operating system

Which of the following is the smallest data size?

A. Terabyte

B. Megabyte

C. Bit

D. Kilobyte

Option c – Bit

In case of a virus getting into the computer. Which of the following will help?

A. None of these

B. NORTON

C. Police complaint

D. Encryption

Option b – NORTON

……… provides process & memory management services that allow two or more tasks, jobs, or programs to run simultaneously.

A. Multithreading

B. Multitasking

C. Multiprocessing

D. None of these

Option b – Multitasking

To restart the computer ……. key is used ( computer operator written exam questions )

a) Del + Ctrl

b) Backspace + Ctrl

c) Ctrl+Alt+Del key is used.

d) Reset

Option d – Reset

If you do not want to select any option after opening a menu then click the menu title again or press …….. key to close the menu.

a) Shift

b) Tab

c) Escape

d) Fl

Option c – Escape

It is a visual aspect that indicates that a control is ready to receive input from you in the Windows operating system

a) Control’s Focus

b) Dialog Boxes

c) Command Buttons

d) Text Boxes

Option a – Control’s Focus

Which of the following statements is false concerning file names?

a) Files may share the same name or the same extension but not both.

b) Every file in the same folder must have a unique name.

c) File extension is another name for file type.

d) The file extension comes before the dot (.) followed by the file name.

Option d – The file extension comes before the dot (.) followed by the file name

Powerful key that lets you exit a program when pushed ( computer operator written exam questions )

a) arrow keys

b) spacebar

c) escape key

d) return key

Option c – escape key

In the Windows operating system when you delete a file or folder, it doesn’t actually get deleted right away, it goes to the

a) Recycle Bin

b) Dust Bin

c) Cycle Bin

d) None of these

Option a – Recycle Bin

The …….. key and the …….. key can be used in combination with other keys to perform shortcuts & special tasks.

a) Control, Alt

b) Function, toggle

c) Delete, Insert

d) Caps Lock, Num Lock

Option a – Control, Alt

In addition to the basic typing keys, desktop & notebook computer keyboards include a(n) …….. keypad to efficiently move the screen-based insertion point.

a) editing

b) number

c) locked

d) docked

Option b – number

The ……… settings are automatic & standard.

a) default

b) CPU

c) peripheral

d) user-friendly

Option a – default

Which of these keys is not on the number keypad? ( computer operator written exam questions )

a) Ctrl

b) Del

c) Enter

d) Num Lock

Option a – Ctrl

During processing data, programs & processed information are held temporarily in

(a) Secondary Storage

(b) ROM

(d) CPU

Option c – RAM

A flat metallic disk that contains a large amount of permanently stored information read optically is called a

(a) Monitor

(b) ALU

(d) RAM

Option c – CD-ROM

Which type of memory holds only the program & data that the CPU is presently processing?

(a) CMOS

(b) ROM

(d) ASCII

Option c – RAM

A CD-Rom Disk

(a) cannot be erased and rewritten

(b) has more storage capacity than a CD-R

(d) Can be written only once

Option a – cannot be erased and rewritten

How is it possible that both programs and data can be stored on the same floppy disk?

(a) A floppy disk has two sides, one for data & one for programs.

(b) Programs & data are both software & both can be stored on any memory device.

(d) Floppy disks can only store data, not programs

Option b – Programs & data are both software & both can be stored on any memory device

Secondary Storage ( computer operator written exam questions )

(a) Does not require constant power.

(b) Does not use magnetic Media.

(d) Does not store information for later retrieval

Option a – Does not require constant power

The place where the computer stores programs & data is called

(a) Memory

(b) Storehouse

(d) Back up

Option c – Storage Unit

Java is a

A) Low-level language

B) Programming mid-level language

C) Compiler

D) Hardware device driver

Option b – Programming mid-level language

A __ is a set of rules and standards that any two entities use for communication.

A) Parameter

B) Interaction

C) Interface

D) Protocol

Option d – Protocol

What is the message on the screen that requests the operator to enter information or a command?

A) Window

B) Byte

C) Character

D) Prompt

Option d – Prompt

Which of the following is not a storage device?

A) None of the above

B) DVD

C) Floppy Disk

D) CD

Option a – None of the above

Generally, a hardware device connected to the computer through cable is called a

A) Peripheral

B) Icon

C) Virus

D) Database

Option a – Peripheral

The set of instructions that tells the computer what to do is

A) Softcopy

B) Hardcopy

C) Software

D) Softcopy

Option c – Software

How is data organized in a spreadsheet?

A) Lines & spaces

B) None of these

C) Rows & columns

D) Height and width

Option c – Rows & columns

Computer programs are written in a high-level programming language; however, the human-readable version of a program is called

A) Instruction set

B) Cache

C) Source code

D) None of these

Option c – Source code

USB in computer parlance stands for

A) Universal System Backup

B) Universal Serial Bus

C) Universal Serial Backup

D) Uncounted System bus

Option b – Universal Serial Bus

Computers connected to a LAN can

A) Share information and/or share peripheral equipment

B) None of these

C) Run faster

D) E-mail

Option a – Share information and/or share peripheral equipment

What are the temporary storage memory chips that form the computer’s primary workspace? The contents are lost if power is disrupted.

A) Windows

B) ROM

C) RAM

D) Outputs

Option c – RAM

Which of the following commands in Office 2007 can be used to go to the first cell in the current row?

A) ESC+HOME

B) TAB

C) SHIFT+HOME

D) HOME

Option d – HOME

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