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Q:

From a group of 7 men and 6 women, five persons are to be selected to form a committee so that at least 3 men are there on the committee. In how many ways can it be done?

A) 564 B) 735
C) 756 D) 657
 
Answer & Explanation Answer: C) 756

Explanation:

We may have (3 men and 2 women) or (4 men and 1 woman) or (5 men only). 

 

Required number of ways= 7C3*6C2+7C4*6C1+7C5 = 756.

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Filed Under: Permutations and Combinations

Q:

Who is the author of the book The Discovery of India ?

A) Kalhan B) Jawaharlal Nehru
C) Ashapurna Devi D) None
 
Answer & Explanation Answer: B) Jawaharlal Nehru

Explanation:

Jawaharlal Nehru is the author of the book The Discovery of India

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Filed Under: Books and Authors

Q:

How can you get/set an environment variable from a program?

Answer

Getting the value of an environment variable is done by using `getenv()’. Setting the value of an environment variable is done by using `putenv()’

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Subject: Operating Systems Exam Prep: GATE

Q:

main()

{

fork();

 

printf(“Hello World!”);

}

Output for the above unix program is

A) Hello World! B) Hello World!Hello World!
C) Hello World D) None
 
Answer & Explanation Answer: B) Hello World!Hello World!

Explanation:

The fork creates a child that is a duplicate of the parent process. The child begins from the fork().All the statements after the call to fork() will be executed twice.(once by the parent process and other by child). The statement before fork() is executed only by the parent process

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Filed Under: Operating Systems
Exam Prep: GRE

Q:

Which among the following validators checks if entered data matches a specific format

A) Compare validator B) RegularExpressionValidator
C) CustomValidator D) None
 
Answer & Explanation Answer: B) RegularExpressionValidator

Explanation:

RegularExpressionValidator checks if entered data matches a specific format

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Filed Under: .NET
Job Role: Software Architect

Q:

Which among the following validators allows checking if data of one control match with other control?

A) RangeValidator B) CompareValidator
C) RequiredFieldValidator D) None
 
Answer & Explanation Answer: B) CompareValidator

Explanation:

CompareValidator  allows checking if data of one control match with other control

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Filed Under: .NET
Job Role: Software Architect

Q:

Which among the following validators validates controls if controls contain data?

A) CompareValidator B) RangeValidator
C) RequiredFieldValidator D) None
 
Answer & Explanation Answer: C) RequiredFieldValidator

Explanation:

RequiredFieldValidator is used to validate the controls if they contain data

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Filed Under: .NET
Job Role: Software Architect

Q:

Server controls contain attributes whereas HTML controls have properties only.

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

Explanation:

Server controls contain properties whereas HTML controls have attributes.

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Subject: Web Technology
Job Role: Software Architect