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Computer Operator Mock Test with Answers for Students
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
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
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
(c) RAM
(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
(c) CD-ROM
(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
(c) RAM
(d) ASCII
Option c – RAM
A CD-Rom Disk
(a) cannot be erased and rewritten
(b) has more storage capacity than a CD-R
(c) holds less data than a floppy disk
(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.
(c) A floppy disk has to be formatted for one or for the other.
(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.
(c) Consists of four main types of devices.
(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
(c) Storage Unit
(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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