IT Trainer Questions


Q:

Which sentence is written correctly?

A) They never watch no movie during the working days, but in holidays they watch one movie. B) They never watch none movie during the working days, but in holidays they watch one movie.
C) They don't never watch any movie during the working days, but in holidays they watch one movie. D) They watch no movie during the working days, but in holidays they watch one movie.
 
Answer & Explanation Answer: D) They watch no movie during the working days, but in holidays they watch one movie.

Explanation:

They watch no movie during the working days, but in holidays they watch one movie.

is correctly written among the given options.

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12 2319
Q:

In each question given below four conclusions are followed by statements. You have to take the three given statements to be true (even if they seem to be at variance from the commonly known facts). Read the conclusions and decide which of the following set of statement indicate that conclusion is logically follows.

Statements :
1. All chairs are tents.

2. No chairs is jugs.

3. No jugs is glasses.

4. No glasses is pots.

Conclusions :
I. All pots are tents.

II. All glasses are chair.

III. Some jugs are tents.

A) Only conclusion I follows B) Both conclusion II & III follows
C) None follows D) Only conclusion II follows
 
Answer & Explanation Answer: C) None follows

Explanation:
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5 2317
Q:

Magnetic field lines about a current-carrying wire

A) circle the wire in closed loops B) extend radially from the wire
C) both of these D) None of the above
 
Answer & Explanation Answer: A) circle the wire in closed loops

Explanation:

Electric current produces a magnetic field. This magnetic field can be visualized as a pattern of circular field lines surrounding a wire.

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

3 2313
Q:

How long would it take to travel 4 light years?

Answer

There are approximately 6 trillion miles in a light-year, so the distance we need to go is 6 trillion miles / light-year times. 4 light-years is equal to 24 trillion miles. So, this whole would take 1.2 billion hours. There are 24 hours a day and 365.25 days per year, so this time in years is 137 thousand years.

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

6 2309
Q:

How can you avoid callback hells ?

Answer

There are lots of ways to solve the issue of callback hells:


1. Modularization: break callbacks into independent functions
2. Use a control flow library, like async
3. Use generators with Promises
4. Use async/await (note that it is only available in the latest v7 release and not in the LTS version)

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Subject: Java
Job Role: Analyst , IT Trainer

3 2302
Q:

What can you catch but not throw?

Answer

A cold or flu illness.

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3 2299
Q:

I am a box that holds keys without locks, yet they can unlock your soul. What am I?

A) Keyboard B) Keypad
C) Piano D) Key holder
 
Answer & Explanation Answer: C) Piano

Explanation:
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5 2292
Q:

A Website address is a unique name that identifies a specific

A) Link B) PDA
C) Web browser D) Website
 
Answer & Explanation Answer: D) Website

Explanation:
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