Information technology MCQs

Showing 50 questions (Total: 2310)

Sonali Bank Ltd #1401

The time complexity of binary search is :

A: constant
B: quardratic
C: exponential
D: logarithmic
Sonali Bank Ltd #1402

what is a long -term scheduler ?

A: It selects which process has to be brought into the ready queue
B: It selects which process has to be executed nest and allocates CPU
C: It selects which process to remove front memory by swapping
D: It selects which process needs to be killed next
Sonali Bank Ltd #1403

Domain of a function is :

A: the maximal set of numbers for which a function is defined
B: the maximal set of numbers which a function can take values
C: it is the set of natural numbers for which a function is defined
D: any set of positive numbers
Sonali Bank Ltd #1404

For some base r, the digits which are allowed in its representation are?

A: Digits from 1 to r
B: Digits from 0 to r -1
C: Digits from 1 to r -1
D: Digits from 0 to r
Sonali Bank Ltd #1405

RPC provides a (an) __ on the client side , a separate one for each remote procedure.

A: stub
B: identifier
C: name
D: process identifier
Sonali Bank Ltd #1406

An algorithm which uses the past results to find the new results is

A: Brute Force
B: Divide and Conquer
C: Dynamic programming algorithms
D: All of the above
Sonali Bank Ltd #1407

which of these keywords can be used in a subclass to call the constructor of superclass?

A: Extent
B: Extends
C: Super
D: This
Combined Bank #1408

CPU fetches the instruction form memory according to the value of __

A: Program counter
B: status register
C: instruction register
D: program status word
Sonali Bank Ltd #1409

what is the mounting of file system ?

A: crating of a file system
B: deleting a file system
C: attaching portion of the file system into a directory structure
D: removing portion of the file system into a directory structure
Sonali Bank Ltd #1410

Multi threaded programs are :

A: lesser prone to deadlocks
B: more prone to deadlocks
C: not at all prone to deadlocks
D: always results in deadlock
Sonali Bank Ltd #1411

when there is a large logical address space, the best way of paging would be:

A: not to page
B: a tow level paging algorithm
C: the page table itself
D: all of the above
Combined Bank #1412

A host machine is unable to communicate with Google server . Which command is the most appropriate to run at host machine to determine which intermediary device is responsible for this failure?

A: relnet 192.168. 1.1
B: ping 192. 168.1.1
C: tracert 192. 168.1.1
D: fip 192.168.1.1
Sonali Bank Ltd #1413

In the ___ normal form , a composite attribute is converted to individual attributes .

A: First
B: Second
C: Third
D: Fourth
Janata Bank Ltd #1414

Suppose a C program has floating constant 1.414, what's the best way to convert this as 'float' data type?

A: (float) 1.414
B: Float (1,414)
C: 1,414f or 1.414 F
D: None of these
Janata Bank Ltd #1415

Consider the following variable declarations and definations in C . (i) int var _ 9 =1 ; (ii) int 9 _ var =2; (iii) int + =3; Choose the correct statement w.r.t above variables.

A: Both i. and ii. are valid
B: Only i. is valid
C: Both i. & iii. are valid
D: All of these
Janata Bank Ltd #1416

Let x be an integer which can take a value of 0 or 1. The statement if (x == 0) x =1 ; else x =0 ; is equivalent to which one of the following ?

A: x = 1 +x ;
B: x =1 -x ;
C: x =x -1 ;
D: x = 1 % x;
Janata Bank Ltd #1417

For a given integer, which of the following operators can be used to 'Set' and 'reset ' a particular bit respectively?

A: I and &
B: && and II
C: & and I
D: II and &&
Exim Bank Ltd #1418

Which none of the following is an example of file compression software in a computer?

A: Win Compress
B: MS Compress
C: Win Zip
D: MS File Zip
Exim Bank Ltd #1419

In a computer, WAV file format is associated with what type of files?

A: Video
B: Sound
C: Image
D: Document
Sonali Bank Ltd #1420

Which of the following occurs when software tries to access protected memory ?

A: Segmentation Fault
B: Display- Time Error
C: IO Error
D: Runtime Error
Sonali Bank Ltd #1421

A collection of unprocessed items is____

A: information
B: data
C: memory
D: reprots
Exim Bank Ltd #1422

In a computer, which of the following keys you can use to get help in most of the programs?

A: F10
B: F3
C: F1
D: ESC
Sonali Bank Ltd #1423

If you wish to extend the length of the network without having the signal degrade, you would use a____

A: Repeater
B: Routr
C: Gateway
D: Switch
Sonali Bank Ltd #1424

Which disk is used to cold boot a PC?

A: Setup disk
B: System disk
C: Diagnostic disk
D: Program disk
Sonali Bank Ltd #1425

Which of the following is not a logical function used in Ms- Excel?

A: ELSE
B: ROUND
C: MIN
D: RAND
Exim Bank Ltd #1426

Which of the following is not a web browser?

A: Internet explorer
B: Google Chrome
C: Opera
D: Portal
Sonali Bank Ltd #1427

Ctrl, Shift and Alt are called _____keys.

A: function
B: adjustment
C: modifier
D: application
Sonali Bank Ltd #1428

Which of the following types of menu shows the further sub-choice?

A: Reverse
B: Template
C: Scrolled
D: Pull-down
Sonali Bank Ltd #1429

what is an example of iteration in C?

A: for
B: while
C: do -while
D: all of the above
Dutch-Bangla Bank Ltd #1430

A hard disk has the storage capacity of 80 GB. It can store a total of __

A: 80×230bytes information
B: 80×228 bytes information
C: 80 ×232 bytes information
D: 80×236bytes information
Sonali Bank Ltd #1431

(111111110)2=(?)10

A: 256
B: 511
C: 510
D: 512
Bangladesh Bank #1432

An electronic path, that sends signals from one part of computer to another is a __

A: Logic Gate
B: Modem
C: Bus
D: Serial Port
Janata Bank Ltd #1433

How many time the following for loop will be executed ? unsigned int i for ( i=100; i > = 0, i --) printf ("%d", i)

A: Undefined
B: 100
C: 99
D: 10
Dhaka Bank Ltd #1434

In computer terminology, OCR stands for

A: Optical Character Reader
B: Optical card Reader
C: Office Cash Receiver
D: Online Computer Retrieval
Combined Bank #1435

Once information is input into a computer it becomes _

A: objects
B: ideas
C: data
D: facts
Bangladesh Bank #1436

The operation of machining several surface of a workpiece simultaneously is called

A: profile milling
B: face milling
C: gang milling
D: none of these
Exim Bank Ltd #1437

Which is the short-cut command (using key board) to add a new slide in a power point file?

A: Ctrl+m
B: Ctrl+n
C: ctrl+o
D: Ctrl+p
Exim Bank Ltd #1438

What kind of storage device can be affeted be affected by fragmentation?

A: magnetic
B: optical
C: solid-state
D: laser
Exim Bank Ltd #1439

Ina spreadsheet, ____can help you make sense of a worksheet's computer memory?

A: formulas
B: labels
C: values
D: tables
Exim Bank Ltd #1440

Which of the follwoing is an example of a non -volatile computer memory?

A: RAM
B: ROM
C: DRAM
D: None of these
Exim Bank Ltd #1441

A computer that stores and forwards e-mail message is called___

A: Mail center
B: Mail sytem
C: Mail server
D: Mail sender
Exim Bank Ltd #1442

The main memory of a computer is also called-

A: Primary storage
B: Primary memory
C: Internal memory
D: All of these
Exim Bank Ltd #1443

To reload a Web, which of the following button should be pressed in the web browser ?

A: Redo
B: Undo
C: Refresh
D: Ctrl
Exim Bank Ltd #1444

In Mainframe environment, the ___ terminal does not process data.

A: Intelligent
B: Numb
C: Dumb
D: Smart
Bangladesh Bank #1445

The energy stored in a body when stained within elastic limit is known as

A: resilience
B: proof resilience
C: impact energy
D: strain energy
Exim Bank Ltd #1446

One character is represented by-

A: One Bit
B: One Byte
C: One Kilobyte
D: One Megabyte
Sonali Bank Ltd #1447

The _______clause is used to list the attributes desired in the result of a query.

A: Where
B: select
C: From
D: Distint
Sonali Bank Ltd #1448

Create table employee (name varcher, id integer)

A: DML
B: DDL
C: View
D: Integrity constraing
Sonali Bank Ltd #1449

In SQL_____, aggregate function can be used in the select list or the _____clause of a select statement of sub query. They cannot be used in a _____clause.

A: where, having
B: having, where
C: Group by, having
D: Group by, where
Sonali Bank Ltd #1450

The data structure required to check whether an expression contains balanced parenthesis is?

A: Stack
B: Queue
C: Array
D: Tree