421 . when two variables are logically compared , the logic gate that tests the equivalence is ___

A. XNOR
B. XOR
C. AND
D. NOR

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Answer: Option B

Explanation:

This explains why "EQ" is often called "XNOR" in the combinational logic of circuit engineers, since it is the negation of the XOR operation; "NXOR" is a less commonly used alternative.

Another rationalization of the admittedly circuitous name "XNOR" is that one begins with the "both false" operator NOR and then adds the eXception "or both true".

Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018

A. Submitting a batch job
B. Debugging a program
C. Loading the operating system
D. Kicking it in frustration
E. None of them

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Answer: Option C

Explanation:

423 . When you start your computer then which component works first?

A. BIOS
B. Processor
C. Hard Disk
D. RAM

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Answer: Option B

Explanation:

BIOS (basic input/output system) is the program a computer's microprocessor uses to start the computer system after it is powered on. It also manages data flow between the computer's operating system (OS) and attached devices, such as the hard disk, video adapter, keyboard, mouse and printer.

424 . When you start your computer then which component works first?

A. BIOS
B. Processor
C. Hard disk
D. RAM

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Answer: Option A

Explanation:

Bangladesh Bank - Officer - 2015

A. for
B. break
C. return
D. exit

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Answer: Option C

Explanation:

Throw and return does the same job as return a value . so it can be replaced .

Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018

A. A
B. B&C
C. C
D. None

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Answer: Option A

Explanation:

Class a networks range from 1 to 127. The default subnet mask is 255.0.0; thus, by default, the first octet defines the network, and last three octets define the host. This results in a maximum of 127 class A networks, with 16,777,214 hosts per network.

427 . which component is used to compile , debug and execute java program?

A. JVM
B. JDK
C. JTT
D. JRE

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Answer: Option B

Explanation:

JDK is a core component of java Environment and provides all the tools, executables and binaries required to compile, debug and execute a java Program .

Senior Officer (IT) - Sonali-Janata-BD Krishi-BD Development Bank Ltd - 30.11.2018

A. BNC
B. RJ-11
C. RJ-45
D. RJ-69

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Answer: Option C

Explanation:

429 . Which country is the inventor of internet?

A. England
B. China
C. USA
D. Japan

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Answer: Option C

Explanation:

430 . which device among following is used for sending digital data over a phone line?

A. USB
B. Modem
C. Scanner
D. Printer

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Answer: Option B

Explanation:

Officer (General) -Ansar VDP Unnayan | BD House Building Finance Corporation 28.09.2018

A. Router
B. Firewall
C. Switch
D. Operating System

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Answer: Option B

Explanation:

বাংলাদেশ ব্যাংক || সহকারী পরিচালক 28-10-2022

A. FAT
B. OSX
C. NTFS
D. EXT2

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Answer: Option A

Explanation:

FAT: A file allocation table (FAT) is a file system developed for hard drives that originally used 12 or 16 bits for each cluster entry into the file allocation table.

It is used by the operating system (OS) to manage files on hard drives and other computer systems. This includes DOS and all early versions of Windows, beginning with 3.x through Windows 98 Second Edition. Actually, Windows NT through Windows XP uses FAT as well, but only under certain circumstances.

OS X: এটি mac OS এর এক ধরনের Disk Format.

NTFS: New Technology File System. It is a file system developed by Microsoft. Starting with Windows NT 3.1, it is the default file system of the Windows NT family.

EXT2: Second Extended File System is a file system for the Linux Kernel.

আপাতদৃষ্টিতে FAT এবং NTFS একই Operating System এ ব্যবহার করা যায় - এরকম মনে হতে পারে। প্রকৃতপক্ষে FAT, NTFS এর Predecessor বা পূর্বসূরী। তাই MS DOS 6.0 এর ক্ষেত্রে উত্তর হবে FAT System. ।

433 . Which file extension indicate only graphics files?

A. BMP and DOC
B. JPEG and TXT
C. TXT and STK
D. BMP: and GIF

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Answer: Option D

Explanation:

The BMP file format, also known as bitmap image file, device independent bitmap (DIB) file format and bitmap, is a raster graphics image file format used to store bitmap digital images, independently of the display device (such as a graphics adapter), especially on Microsoft Windows and OS/2 operating systems.

The Graphics Interchange Format (GIF /dʒɪf/ JIF or /ɡɪf/ GHIF) is a bitmap image format that was developed by a team at the online services provider CompuServe led by American computer scientist Steve Wilhite on June 15, 1987. ... Unlike video, the GIF file format does not support audio.

434 . Which file extensions do indicate only graphics files ?

A. BMP and DOC
B. JPEG and TXT
C. TXT and STK
D. BMP and GIF

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Answer: Option D

Explanation:

Bangladesh Bank - Assistant Director - 2011

A. AUTOEXEC.COM
B. DOSCONFIG.SYS
C. SMARTDRV.SYS
D. CONFIG.SYS

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Answer: Option D

Explanation:

The Config.sys is the main configuration file used by OS/2, MS - DOS and other operating systems. Config.sys commands loads programs into the memory and sets ups the memory management of the system. The command shell is executed after the config.sys has been processed. After the command shell is loaded, the autoexec.bat file is processed.

Bangladesh Bank - Assistant Director - 2008

421 . when two variables are logically compared , the logic gate that tests the equivalence is ___

422 . When you boot a computer you are-

423 . When you start your computer then which component works first?

424 . When you start your computer then which component works first?

425 . which alternative can replace the throw statement in C++ ?

426 . Which class of IP address has the most host address available by default?

427 . which component is used to compile , debug and execute java program?

428 . Which connector STP uses?

429 . Which country is the inventor of internet?

430 . which device among following is used for sending digital data over a phone line?

431 . Which device is mainly related to provide security of a network?

432 . Which Disk Format can access by MS-Dos 6.0?

433 . Which file extension indicate only graphics files?

434 . Which file extensions do indicate only graphics files ?

435 . Which file is run automatically if it is available?

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