IT Trainer Questions


Q:

From a group of 7 boys and 6 girls, five persons are to be selected to form a team, so that at least 3 girls are there in the team. In how many ways can it be done?

A) 427 B) 531
C) 651 D) 714
 
Answer & Explanation Answer: B) 531

Explanation:

Given in the question that, there are 7 boys and 6 girls. 

Team members = 5

Now, required number of ways in which a team of 5 having atleast 3 girls in the team = 

6C3  x 7C2  + 6C4 x 7C1 + 6C5= 6x5x43x2x1 x 7x62x1 + 6x5x4x34x3x2x1 x 7 + 6x5x4x3x25x4x3x2x1= 420 + 105 + 6= 531.

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Q:

Power Point presentation is a collection of

A) Outlines B) Slides and Handouts
C) Speaker’s notes D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Power Point presentation is a collection of Slides and Handouts, Outlines and Speaker’s notes.

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Q:

Synonym of Trustworthy?

A) Tenacity B) Insolent
C) Resolute D) Reliable
 
Answer & Explanation Answer: D) Reliable

Explanation:
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Q:

Which technology is used in compact disc or disks?

A) Laser B) Mechanical
C) Electrical D) Electro magnetic
 
Answer & Explanation Answer: A) Laser

Explanation:

                                    Which_technology_is_used_in_compact_disc_or_disks1538026052.jpg image

Compact disc (CD) is a digital optical disc data storage format that was co-developed by Philips and Sony and released in 1982. 

These are actually made to replace floppy disks that were used to store files and programs from the computer.

 

The format was originally developed to store and play only sound recordings but was later adapted for storage of data (CD-ROM).ese CD's uses Laser technology.

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Q:

Which of the following is not a macronutrient?

A) Carbohydrates B) Calcium
C) Chlorine D) Proteins
 
Answer & Explanation Answer: C) Chlorine

Explanation:

Nutrients that are needed in large amounts are called Macronutrients.

 

There are three macronutrients required by humans:

1. carbohydrates (sugar),

2. lipids (fats), and

3. proteins.

 

Each of these macronutrients provides energy in the form of calories.

 

Some other macronutrients are: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), sulfur (S), magnesium (Mg), sodium (Na).

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

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Q:

Digitized information can be used by computers.

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

TRUE. The computers and electronic devices use digitized information which is easily understood by them.


 


Digitization is the process of converting analog signals or information of any form into a digital format that can be understood by computer systems or electronic devices. The term is used when converting information, like text, images or voices, and sounds, into binary code.

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6 3599
Q:

System Study involves

A) documenting the existing system B) identifying current deficiencies and establishing new goals
C) study of an existing system D) All the above
 
Answer & Explanation Answer: D) All the above

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

7 3594
Q:

What is at the end of a rainbow?

Answer

The logical answer for a puzzle is that the letter 'W'.


 


A rainbow is a spectrum of light that appears in the sky when sunlight is refracted through raindrops or other drops of moisture in the Earth's atmosphere. They have inspired much popular folklore, including the belief that a leprechaun can be found with a pot of gold at the end of a rainbow.

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