Explore topic-wise MCQs in Engineering.

This section includes 4320 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.

951.

If you are to use [Control-c] as the interrupt key instead of [Del], then you will have to use

A. tty ^c
B. stty intr ^c
C. stty echoe
D. stty echo ^a
E. None of the above
Answer» C. stty echoe
Discussion
952.

Which of the following keys is used to move the cursor to the end of the paragraph.

A. }
B. {
C. |
D. $
E. None of the above
Answer» B. {
Discussion
953.

Which command is used to remove a file?

A. remove
B. rm
C. mv
D. del
E. None of the above
Answer» C. mv
Discussion
954.

Which command is used to display a file contents in octal form?

A. cd
B. od
C. of
D. oct
E. None of the above
Answer» C. of
Discussion
955.

Which of the following command addresses all users who are currently hooked on?

A. write
B. mail
C. wall
D. mesg
E. None of the above
Answer» D. mesg
Discussion
956.

Which of the following options will be used to display number of blocks used by a file?

A. -c
B. -i
C. -d
D. -s
E. None of the above
Answer» E. None of the above
Discussion
957.

While working with mail command, which command is used to save mail in a separate file?

A. s
B. r
C. w
D. d
E. None of the above
Answer» B. r
Discussion
958.

Which commands is used to assign executable permission to all of the files named "letter"?

A. chmod ugo+r letter
B. chmod ugo+rw letter
C. chmod u+x letter
D. chmod ugo+x letter
E. None of the above
Answer» E. None of the above
Discussion
959.

Which command will be used with vi editor to replace single character under cursor with any number of characters?

A. s
B. S
C. a
D. i
E. None of the above
Answer» B. S
Discussion
960.

Which of the following commands is used to get directory one level up?

A. cd
B. cd ..
C. cd/
D. chdir
E. None of the above
Answer» C. cd/
Discussion
961.

Which command is used to sort the lines of data in a file in alphabetical order?

A. sort
B. sh
C. st
D. sort -r
E. None of the above
Answer» B. sh
Discussion
962.

Which is the earliest and most widely used shell that came with the UNIX system?

A. C shell
B. Korn shell
C. Bourne shell
D. Smith shell
E. None of the above
Answer» D. Smith shell
Discussion
963.

Which option will be used with disk free command to include the total amount of disk space in the file system?

A. -t
B. -tt
C. -4
D. -i
E. None of the above
Answer» B. -tt
Discussion
964.

Which command is used to save the standard output in a file, as well as display it on the terminal?

A. more
B. cat
C. grep
D. tee
E. None of the above
Answer» E. None of the above
Discussion
965.

Which command will be used with vi editor to append text at end of line?

A. A
B. a
C. i
D. I
E. None of the above
Answer» B. a
Discussion
966.

Which command is used with vi editor to move the cursor to the left?

A. i
B. j
C. k
D. h
E. None of the above
Answer» E. None of the above
Discussion
967.

Which of are following internal commands is used in mail to forward mail to user in user-list?

A. r user-list
B. m user-list
C. d user-list
D. e user-list
E. None of the above
Answer» C. d user-list
Discussion
968.

How many inputs signals can a gate have?

A. one
B. more than one
C. two only
D. both (a) and (b)
E. None of the above
Answer» E. None of the above
Discussion
969.

What logic function is obtained by adding an inverter to the inputs of an AND gate?

A. OR
B. NAND
C. XOR
D. NOR
E. None of the above
Answer» E. None of the above
Discussion
970.

The simplified form of the Boolean expression (X + Y + XY)(X + Z) is

A. X + Y + Z
B. XY + YZ
C. X + YZ
D. XZ + Y
E. None of the above
Answer» D. XZ + Y
Discussion
971.

An inverter is also called a _____ gate.

A. NOT
B. OR
C. AND
D. NAND
E. None of the above
Answer» B. OR
Discussion
972.

The OR gate has two or more input signals. If any input is _____ the output is high.

A. low
B. high
C. 0
D. All of the above
E. None of the above
Answer» C. 0
Discussion
973.

In boolean algebra, the times sign stands for the _____ operation

A. AND
B. OR
C. NAND
D. NOR
E. None of the above
Answer» B. OR
Discussion
974.

The memory cell of a dynamic RAM is simpler and smaller than the memory cell of a _____ RAM.

A. volatile
B. static
C. semiconductor
D. bipolar
E. None of the above
Answer» C. semiconductor
Discussion
975.

A byte is consist of _____ bits

A. two
B. four
C. eight
D. ten
E. None of the above
Answer» D. ten
Discussion
976.

The _____ is ultraviolet-light-erasable and electrically programmable. This allows the user to erase and store until programs and data are perfected.

A. EPROM
B. ROM
C. PROM
D. RAM
E. None of the above
Answer» B. ROM
Discussion
977.

Which of the following is not functionally a complete set?

A. AND, OR
B. NAND
C. NOR
D. AND, OR, NOT
E. None of the above
Answer» B. NAND
Discussion
978.

The two basic technologies for digital ICs are bipolar and MOS. Bipolar technology is preferred for_____ and _____ whereas MOS technology is better suited to LSI.

A. SSI, MSI
B. MSI, LSI
C. SSI, LSI
D. ECL, DTL
E. None of the above
Answer» B. MSI, LSI
Discussion
979.

How many outputs signals can a gate have?

A. one
B. more than one
C. two only
D. both (a) and (b)
E. None of the above
Answer» B. more than one
Discussion
980.

The octal equivalent of decimal 324.987 is

A. 504.771
B. 640.781
C. 815.234
D. 90.987
E. None of the above
Answer» B. 640.781
Discussion
981.

What is the ASCII code for T?

A. 1010100
B. 1011010
C. 1011100
D. 1011111
E. None of the above
Answer» B. 1011010
Discussion
982.

_____is an abbreviation for binary digit.

A. 0 and 1
B. bingit
C. base
D. bit
E. None of the above
Answer» E. None of the above
Discussion
983.

What command is used to remove files?

A. dm
B. rm
C. delete
D. erase
E. None of the above
Answer» C. delete
Discussion
984.

What TCP/IP protocol is used for remote terminal connection service?

A. UDP
B. RARP
C. FTP
D. TELNET
E. None of the above
Answer» E. None of the above
Discussion
985.

Which command is used to suppress the prompt that asks you to confirm that you want to delete the directory?

A. DELTREE
B. DELTREE/F
C. DEL*.*
D. ERASE *.*
E. None of the above
Answer» C. DEL*.*
Discussion
986.

Decision support programs are designed to help managers make:

A. budget projections
B. visual presentations
C. business decisions
D. vacation schedules
E. None of the above
Answer» D. vacation schedules
Discussion
987.

While working with MS-DOS, which command is used to restore files that were backed up using the BACKUP command?

A. COPY
B. DISKCOPY
C. RESTORE
D. STORE
E. None of the above
Answer» D. STORE
Discussion
988.

To find out how much memory is available, you could type______.

A. EMM
B. MEM
C. CHKDSK
D. MEMMAKER
E. None of the above
Answer» C. CHKDSK
Discussion
989.

While working with MS-DOS, which command is used to display the contents of a file and pause the display after each screenful of information?

A. TYPE filename | MORE
B. CAT filename | MORE
C. CAT filename | pg
D. MORE filename
E. None of the above
Answer» B. CAT filename | MORE
Discussion
990.

Addressing structure

A. defines the fundamental method of determining effective operand addresses
B. are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
C. performs indicated operations on two fast registers of the machine and leave the result in one of the registers.
D. all of the above
E. None of the above
Answer» B. are variations in the use of fundamental addressing structures, or some associated actions which are related to addressing.
Discussion
991.

What is the name given to the organized collection of software that controls the overall operation of a computer?

A. Working system
B. Peripheral system
C. Operating system
D. Controlling system
E. None of the above
Answer» D. Controlling system
Discussion
992.

Which of the following are(is) Language Processor(s)

A. assembles
B. compilers
C. interpreters
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
993.

The Register - to - Register (RR) instructions

A. have both their operands in the main store.
B. which perform an operation on a register operand and an operand which is located in the main store, generally leaving the result in the register, except in the case of store operation when it is also written into the specified storage location.
C. which perform indicated operations on two fast registers of the machine and leave the result in one of the registers.
D. all of the above
E. None of the above
Answer» D. all of the above
Discussion
994.

Which of the following is false about disk when compared to main memory?

A. non-volatile
B. longer storage capacity
C. lower price per bit
D. faster
E. None of the above
Answer» E. None of the above
Discussion
995.

System Study involves

A. study of an existing system
B. documenting the existing system.
C. identifying current deficiencies and establishing new goals
D. All of the above
E. None of the above
Answer» E. None of the above
Discussion
996.

The primary tool used in structured design is a:

A. data-flow diagram
B. module
C. structure chart
D. program flowchart
E. None of the above
Answer» D. program flowchart
Discussion
997.

A problem's _____ will answer the question, "What information will the computer need to know in order to either print or display the output times?"

A. Input
B. Output
C. Processing
D. Purpose
E. None of the above
Answer» B. Output
Discussion
998.

The mistake, committed by interchanging two digits in a numeric held, during data entry, is called

A. transposition error
B. transcription error
C. Beta testing error
D. Alpha testing error
E. None of the above
Answer» B. transcription error
Discussion
999.

To avoid errors in transcription and transposition, during data entry, the System Analyst should

A. provide for a check digit
B. provide for a hash totals
C. provide batch totals
D. All of the above
Answer» E.
Discussion
1000.

In which directory can you store system user default files used for creating user directories?

A. /usr/tmp
B. /etc/default
C. /etc/skel
D. /etc/users
E. None of the above
Answer» D. /etc/users
Discussion