Database Administration Questions


Q:

5 Digits Number?

What 5-digit number has the following features:

If we put the numeral 1 at the beginning, we get a number three times smaller than if we put the numeral 1 at the end of the number.

Answer

We can make an equation:


3(100000 + x) = 10x+1


(Why? Well, adding 100000 puts a 1 at the front of a five-digit number, and multiplying by 10 and adding 1 puts a 1 at the end of a number)


Solving this gives:


10x+1 = 3(100000 + x)
10x+1 = 300000 + 3x
10x = 299999 + 3x
7x = 299999
x = 299999/7 = 42857


The answer is 42857 (142857 is three times smaller than 428571).

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Q:

CHKDSK command is used to

A) analyze the hard disk error B) diagnose the hard disk error
C) report the status of files on disk D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Q:

An increase in the quantity demanded means that

A) The demand curve shifted to right B) Price of the product has declined
C) Increase in consumer income D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
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Q:

What can you catch but not throw?

Answer

A cold or flu illness.

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Q:

A source program is

A) a program to be translated into machine language B) a program written in a machine language
C) a machine language translation of a program D) All of the above
 
Answer & Explanation Answer: A) a program to be translated into machine language

Explanation:

A_source_program_is1563521242.png image

A source program is is a text file that contains instructions or a program written in a language other than machine code, typically a high-level language.

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Q:

Translator program used in assembly language

A) Assembler B) Interpreter
C) Compiler D) Operating system
 
Answer & Explanation Answer: A) Assembler

Explanation:

Assemblers are used to translate a program written in a low-level assembly language into a machine code (object code) file so it can be used and executed by the computer.

 

Hence, Assembler is the translator program used in assembly language.

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Q:

A seven letter word containing thousands of letters is what?

Answer

It is a Postbox or a Mailbox which contains thousands of letters or mails or messages.

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Q:

Which among the following is the relationship constraints

A) Cardinality ratio B) Participation constraints
C) Both A and B D) None of the above
 
Answer & Explanation Answer: C) Both A and B

Explanation:

Both of them are relation ship constraints

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Filed Under: Database
Job Role: Database Administration

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