Database Administration Questions


Q:

Count function in SQL returns the number of

A) groups B) values or rows
C) columns D) distinct values
 
Answer & Explanation Answer: B) values or rows

Explanation:

Count function in SQL returns the number of values or rows.

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36 5621
Q:

Values that are used to end loops are referred to as _____ values.

A) stop B) sentinel
C) end D) finish
 
Answer & Explanation Answer: B) sentinel

Explanation:
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4 5601
Q:

One who sacrifices his life for a cause

One_who_sacrifices_his_life_for_a_cause1552994742.jpg image

A) Patriot B) Soldier
C) Martyr D) Revolutionary
 
Answer & Explanation Answer: C) Martyr

Explanation:

One who sacrifices his life for a cause is called as Martyr.

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Q:

Two main measures for the efficiency of an algorithm are

A) Time and Space B) Complexity and Memory
C) Data and Space D) Memory and Processor
 
Answer & Explanation Answer: A) Time and Space

Explanation:

Two main measures for the efficiency of an algorithm are Time and Space.

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26 5571
Q:

What has Hands But cannot Clap?

A) Toy B) Clock
C) Bag D) Shirt
 
Answer & Explanation Answer: B) Clock

Explanation:

What has Hands But cannot Clap is a Clock or a Watch.

A Clock technically has 3 hands.

1 Hour Hand Which tells Hours

1 Minute Hand Which tells Minutes

1 Second Hand Which tells Seconds.

But cannot clap with these hands.

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11 5537
Q:

Find the compound interest on Rs. 6,500 for 4 years if the rate of interest is 10% p.a. for the first 2 years and 20% per annum for the next 2 years? 

A) Rs. 3845 B) Rs. 4826
C) Rs. 5142 D) Rs. 4415
 
Answer & Explanation Answer: B) Rs. 4826

Explanation:

We know the formula for calculating

The compound interest C = P1 + r100n - 1 where P = amount, r = rate of interest, n = time

Here P = 5000, r1 = 10, r2 = 20

Then C = 65001 + 101002 x 1 + 201002 - 1= 6500 x 18562500= 65 x 185625

C = Rs. 4826.

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20 5512
Q:

Website always has

A) Address B) Information
C) Attachments D) Images
 
Answer & Explanation Answer: A) Address

Explanation:

Website always has an address whether it has images, any information or any attchments in it or not but it must has an address. 

Website_always_has1551876614.jpg image

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6 5507
Q:

Unresolved dissonance is a characteristic of

Answer

When the tension is unresolved, we have unresolved dissonance. Unresolved dissonance is a characteristic of the baroque music.


The general characteristics of Baroque music is movement, energy, and tension.

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