Database Administration Questions


Q:

Fresh grapes contain 60% water, while dry grapes contain 40% water. How many kgs of dry grapes can be obtained by 60 kg of fresh grapes?

A) 25 kgs B) 30 kgs
C) 35 kgs D) 40 kgs
 
Answer & Explanation Answer: D) 40 kgs

Explanation:

The fruit content in both the fresh fruit and dry fruit is the same.

Let 'p' kgs of dry grapes are obtained from the 60 kgs of fresh grapes

 

=> 60 x 40100 = p x 60100=> p = 40 kgs.

 

Therefore, 40 kgs of Dry grapes are obtained from 60 kgs of Fresh grapes.

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21 16018
Q:

The simple interest on Rs.10 for 4 months at the rate of 3 paise per month is

A) 0.3 Paise B) 1.2 Paise
C) 30 Paise D) 3 Paise
 
Answer & Explanation Answer: B) 1.2 Paise

Explanation:

Given Principal amount P = Rs. 10

 Time T = 4 months

 Rate of interest R = 3 ps

 Interest I = PTR/100 = (10 x 4 x 3)/100 = 12/10 = 1.2 paise.

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7 15925
Q:

Which address identifies a process on a host?

A) Port B) Physical
C) IP D) All of the above
 
Answer & Explanation Answer: A) Port

Explanation:
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11 15884
Q:

Website address is a unique name that identifies a specific ___ on the web.

A) Link B) Web browser
C) PDA D) Web site
 
Answer & Explanation Answer: D) Web site

Explanation:

Website address is a unique name that identifies a specific web site on the web.

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24 15716
Q:

What has a spine but no bones?

A) Mirror B) Book
C) Table D) None of the above
 
Answer & Explanation Answer: B) Book

Explanation:

A book has a spine to hold all the pages, but it has no bones.

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42 15659
Q:

What has a neck but no head and wears a cap?

Answer

A bottle has a neck but no head and wears a cap.


 


what_has_a_neck_but_no_head1603889734.jpg image

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33 15558
Q:

The Ozone Layer restricts from

A) Infrared Rays B) Radio waves
C) Ultraviolet Radiation D) X-Rays and Gamma Rays
 
Answer & Explanation Answer: C) Ultraviolet Radiation

Explanation:

The Ozone layer which is present in the Earth's atmosphere protects it by restricting from UV or Ultraviolet radiation, the dangerous rays contained by Sun.

the_ozone_layer_restricts_us_from1542267550.jpg image

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51 15497
Q:

In how many different ways can the letters of the word 'THERAPY' be arranged so that the vowels never come together?

A) 1440 B) 720
C) 2250 D) 3600
 
Answer & Explanation Answer: D) 3600

Explanation:

Given word is THERAPY.

Number of letters in the given word = 7

These 7 letters can be arranged in 7! ways.

Number of vowels in the given word = 2 (E, A)

The number of ways of arrangement in which vowels come together is 6! x 2! ways

 

Hence, the required number of ways can the letters of the word 'THERAPY' be arranged so that the vowels never come together = 7! - (6! x 2!) ways = 5040 - 1440 = 3600 ways.

 

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12 15387