IT Trainer Questions


Q:

A man and his son are in a terrible accident and are rushed to the hospital in critical care. The doctor looks at the boy and exclaims "I can't operate on this boy, he's my son!" How could this be?

Answer

This is only possible when that doctor is boy's mother.

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Q:

An image created to accompany words is called

A) A Heirogylph B) An Illustration
C) A Logo D) An Icon
 
Answer & Explanation Answer: B) An Illustration

Explanation:

An Illustration is a visual image created to accompany words to depict them.

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Q:

What are Spring beans ?

Answer

The Spring Beans are Java Objects that form the backbone of a Spring application. They are instantiated, assembled, and managed by the Spring IoC container. These beans are created with the configuration metadata that is supplied to the container.
Beans defined in spring framework are singleton beans. There is an attribute in bean tag named "singleton" if specified true then bean becomes singleton and if set to false then the bean becomes a prototype bean. By default it is set to true. So, all the beans in spring framework are by default singleton beans.

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Subject: Java
Job Role: Analyst , IT Trainer

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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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Q:

What is plug and play ?

Answer

Plug and Play is a technology wherein hardware components that are installed on PCs using Microsoft operating system are immediately recognized and made usable. This means that the drivers necessary to make it work are already available on the operating system package.

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Q:

Which of the following carbohydrates is a polysaccharide?

A) Fructose B) Cellulose
C) Glucose D) Sucrose
 
Answer & Explanation Answer: B) Cellulose

Explanation:

Carbohydrates are also called as saccharides are molecular compounds made from just three elements:

carbon, hydrogen and oxygen.

 

Carbohydrates are:

* a source of energy for the body e.g. glucose and a store of energy, e.g. starch in plants

* building blocks for polysaccharides (giant carbohydrates), e.g. cellulose in plants and glycogen in the human body

* components of other molecules eg DNA, RNA, glycolipids, glycoproteins, ATP

 

Types:

1. Monosaccharides (e.g. glucose) and

2. Disaccharides (e.g. sucrose) are relatively small molecules. They are often called sugars.

3. Other carbohydrate molecules are very large called Polysaccharides such as starch and cellulose.

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

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Q:

Find the correctly spelt word?

A) Addulation B) Ominous
C) Adlation D) Omineous
 
Answer & Explanation Answer: B) Ominous

Explanation:

Ominous is the correctly spelt word in the given options. It means that giving the worrying impression that something bad is going to happen.

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

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Q:

I go around and in the house but never touches the house. What am I?

Answer

Te Sun.


From the time rising it goes around the house upto sunset, but never touches the house.

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