IT Trainer Questions


Q:

Which of the following is not an Input device?

A) Joystick B) Headphones
C) Mouse D) Scanner
 
Answer & Explanation Answer: B) Headphones

Explanation:

Here Joystick, Mouse and Scanner are Input devices through which data is given to the computers. But Headphones are output devices through which sound comes as an output from the computer or any devices.

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7 3844
Q:

DNA is made of repeating units called

A) Nucleotides B) Ribozomes
C) Peptides D) Aminoacids
 
Answer & Explanation Answer: A) Nucleotides

Explanation:

DNA is a very long chain polymer made up of thousands of repeating units called nucleotides.

 

Nucleotide Unit is composed of a phosphate group, a pentose sugar, and a nitrogenous base.

 

The sides of the DNA ladder are made up of alternating deoxyribose sugar -- phosphate group units.

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Filed Under: Biology
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

3 3843
Q:

In programming, repeating some statements is usually called  ?

A) Running B) Structure
C) Looping D) Control structure
 
Answer & Explanation Answer: C) Looping

Explanation:
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Filed Under: Programming
Job Role: Analyst , IT Trainer

6 3838
Q:

What gets broken without being held?

Answer

Yes, a promise can be broken without being held.

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3 3837
Q:

Fuse Wire is Made of?

A) an alloy of Tin and Lead B) Nickel
C) Copper D) an alloy of Nickel and Lead
 
Answer & Explanation Answer: A) an alloy of Tin and Lead

Explanation:

Fuse Wire is Made of an alloy of Tin and Lead.

 

If too high a current flows, the element rises to a higher temperature and either directly melts, or else melts a soldered joint within the fuse, opening the circuit. Thefuse element is made of an alloy of Tin and Lead to provide stable and predictable characteristics.

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Filed Under: General Science
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank PO , Database Administration , IT Trainer

9 3829
Q:

IP address of a packet is normally analyzed by

A) Modem B) Router
C) Hub D) CPU
 
Answer & Explanation Answer: B) Router

Explanation:

The IP address of a packet is normally analyzed by Router.

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6 3821
Q:

How do you make the number one disappear?

Answer

Add the letter 'G' to the word 'ONE' and it become's 'Gone' which means disappear.

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7 3812
Q:

Is DRAM Volatile or Nonvolatile?

Answer

DRAM is a Volatile random-access memory (VRAM).


 


Volatile random-access memory (VRAM) is random-access memory that retains its information when power is turned on.


Examples of volatile memory are primary storage (typically dynamic RAM, DRAM), and fast CPU cache memory (typically static RAM, SRAM, which is fast but energy-consuming and offer lower memory capacity per area unit than DRAM).


Non-volatile random-access memory (NVRAM) is random-access memory that retains its information when power is turned off.

Examples of non-volatile memory are flash memory (used as secondary memory) and ROM, PROM, EPROM and EEPROM memory (used for storing firmware such as BIOS). 

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