IT Trainer Questions


Q:

What has no beginning, end or middle?

Answer

A Donut or Doughnut. Anything in the shape of a torus.

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Q:

What is the difference between creating String as new() and literal ?

Answer

When we create string with new() Operator, it’s created in heap and not added into string pool while String created using literal are created in String pool itself which exists in PermGen area of heap.



String s = new String("Test");

does not put the object in String pool , we need to call String.intern() method which is used to put them into String pool explicitly. its only when you create String object as String literal e.g. String s = "Test" Java automatically put that into String pool.

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Q:

Which of the following is an example of plagiarism?

A) A student is expected to write a book report about a book that his teacher has assigned. The student doesn't want to read the book and is bored with the subject. He visits websites that provide reviews and book reports and he copies from each of the diffe B) A writer decides that he wants to create an Internet website to generate ad revenue. Instead of writing his own articles, he visits twenty other websites that have articles on the topic in which he is interested. He copies each of the articles, changes th
C) When a writer reuses a mix of word, phrases, and ideas from a source without indicating which words and ideas have been borrowed and/or without properly citing the source. D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Duplicating the content or Copying words or ideas from someone else WITHOUT giving credit is called Plagiarism.

Plagiarism can be a violation of copyright laws and can be considered cheating.

  

Types of Plagiarism :: 

 

1. Direct Plagiarism

 

2. Mosaic Plagiarism

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

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Q:

Conservation of energy refers to the fact that

A) if you conserve energy you will not be as tired B) energy cannot be created or destroyed but can be converted from one form to another
C) no chemical reaction is 100 percent efficient D) the entropy of the universe is always increasing
 
Answer & Explanation Answer: B) energy cannot be created or destroyed but can be converted from one form to another

Explanation:

"Conservation of energy" refers to the fact that energy cannot be created or destroyed but can be converted from one form to another.

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

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Q:

Data structure suitable for an application discussed in?

A) procedural design B) architectural design
C) data design D) interface design
 
Answer & Explanation Answer: C) data design

Explanation:
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Q:

XML preserves white spaces.

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

Explanation:

True, the given statement that xml preserves white spaces is correct.

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Q:

Which sentence is punctuated correctly?

A) One question you should always ask yourself: “Am I pleased with the results?” B) Always ask yourself this question: “Am I pleased with the results?
C) Always ask yourself a question like: “Am I pleased with the results?” D) One question you should always ask yourself is: “Am I pleased with the results?”
 
Answer & Explanation Answer: A) One question you should always ask yourself: “Am I pleased with the results?”

Explanation:

The second would employ a comma, or semi-colon, and not a colon so it is not properly punctuated.

 

The third sentence would not be correct because it uses 'like', usually used for comparison. Since you are not comparing two questions, it would not be appropriate.

 

The fourth sentence has 'is' before the colon, which is a implies declaration and not listing. So, again, it would not be appropriate.

 

Hence, the first sentence, however, is punctuated correctly.

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Q:

3/8 as a decimal

A) 1.375 B) 2.375
C) 0.375 D) 3.75
 
Answer & Explanation Answer: C) 0.375

Explanation:

Expressing 3/8 as a decimal fraction:

We can convert 3/8 into a decimal fraction by just dividing 3 by 8 or making 3 into 8 parts.

Then, it is 3/8 = 0.375 as a decimal fraction.

 

Other Method::

3/8 as a Decimal :

In this we should convert the denominator into 10, 100, 1000, 10000, 100000,... to make it simple.

Now to make 8 into 1000, we multiply numerator and denominator with 125

 

=> (3 x 125)/(8 x 125) = 375/1000 = 0.375.

 

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