Database Administration 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:

The time complexity of sequential search is

A) O(n) B) O(2n)
C) O(n^2) D) None
 
Answer & Explanation Answer: A) O(n)

Explanation:

The time complexity of sequential search is O(n)

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Filed Under: Database
Job Role: Database Administration

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Q:

What is more useful when it is broken?

Answer

An Egg is more useful when it is broken than it is not.

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Q:

'Barren Island' which is the only active volcano in India is situated in?

A) Rajasthan B) Andaman-Nicobar
C) Chattisgarh D) Lakshadweep
 
Answer & Explanation Answer: B) Andaman-Nicobar

Explanation:

The only active volcano in India is situated in Andaman-Nicobar islands.

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Q:

Which continent has the least countries?

A) Africa B) South America
C) Antarctica D) Europe
 
Answer & Explanation Answer: C) Antarctica

Explanation:

Africa - 54 countries

South America - 12 countries

Antarctica - 0 countries

Europe - 43 countries.

 

Hence, Antarctica continent has the least countries.

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Q:

Representation level data models provide the concepts that are close to the way many users perceive data

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

Explanation:

High level data models provide the concepts that are close to the way many users perceive data

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Subject: Database
Job Role: Database Administration

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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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Q:

Which of the following is the largest unit of information?

A) 1 TB B) 1 GB
C) 1 MB D) 1 KB
 
Answer & Explanation Answer: A) 1 TB

Explanation:

1 TB  >  1 GB  >  1 MB  >  1 KB

 

1 Tb (Tera Byte) = 1024 GB

 

1 GB (Giga Byte) = 1024 MB

 

1 MB (Mega Byte) = 1024 KB

 

1 KB (Kilo Byte) = 1024 Bytes

 

1 Byte = 8 Bit

 

Hence, largest unit of information is TB (Tera Byte) and smallest unit of information is Bit.

 

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