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Q:

In a class, seven students are standing in a row. Q is standing left to R but right to P. O is standing right to N and left to P. Similarly, S is standing right to R and left to T. Find out who is standing in the middle ?

A) Q B) R
C) P D) S
 
Answer & Explanation Answer: A) Q

Explanation:

As from the given conditions;
Order is
N O P Q R S T
Here the student standing in the middle is 'Q'.

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Filed Under: Number, Ranking and Time Sequence Test
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

Q:

A man pointing to a lady says, “Her brother is the father of my only son's sister.” How is that lady related to the man ?

A) Daughter-in-law B) Sister
C) Niece D) Daughter
 
Answer & Explanation Answer: B) Sister

Explanation:

My only son's sister is my daughter
father of my daughter is me only
her brother means she is my 'sister'.

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Filed Under: Blood Relations
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Bank Clerk , Bank PO

Q:

"A-Z GST Guide" program launched by which E-commerce firm for sellers to get insights and help related to the goods and services tax (GST) in 2017 ?

A) Flipkart B) Amazon
C) eBay D) Snapdeal
 
Answer & Explanation Answer: B) Amazon

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams

Q:

Virus doubles every 3 mins. It is 'K' in 1 hour, when was it K/4 ?

A) 29 min B) 25 min
C) 54 min D) 57 min
 
Answer & Explanation Answer: C) 54 min

Explanation:

If virus is K in 1hr i.e 60 min
then in 57 min it was K/2 as it doubles every 3 minutes
=> In 54 min it was K/4.
At 54 minutes it was K/4.

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Filed Under: Arithmetical Reasoning
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Bank Clerk , Bank PO

Q:

Which country is hosting the International Diamond Conference "Mines to Market 2017" ? 

A) India B) South Africa
C) Namibia D) Japan
 
Answer & Explanation Answer: A) India

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams

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

Q:

What is an error-first callback ?

Answer

Error-first callbacks are used to pass errors and data as well. You have to pass the error as the first parameter, and it has to be checked to see if something went wrong. Additional arguments are used to pass data.


 


fs.readFile(filePath, function(err, data) {
if (err) {
// handle the error, the return is important here
// so execution stops here
return console.log(err)
}
// use the data object
console.log(data)
})

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Subject: Java
Job Role: Analyst , Database Administration , IT Trainer

Q:

A ‘breath test’ used by traffic police to check drunken driving uses ____?

A) Turmeric on filter paper B) Silica gel coated with silver nitrate
C) potassium permanganate-sulphuric acid D) Potassium dichromatic-sulphuric acid
 
Answer & Explanation Answer: D) Potassium dichromatic-sulphuric acid

Explanation:
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Filed Under: Chemistry
Exam Prep: AIEEE