Database Administration Questions


Q:

Find the next number in the given number series?

35, 36, 55, 111, ?

A) 278.5 B) 264.5
C) 212.5 D) 202
 
Answer & Explanation Answer: A) 278.5

Explanation:

The given number series is 35, 36, 55, 111, ?

35

35 x 1 + 1 = 36

36 x 1.5 + 1 = 55

55 x 2 + 1 = 111

111 x 2.5 + 1 = 278.5

 

Hence, the next number in the given number series is 278.5.

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2 51191
Q:

What is the Full Form of INTERNET ?

Answer

what_is_the_full_form_of_internet1543382839.jpg image


'Internet' is the shortened form of 'INTERnational-NETwork' which is the interconnected network of all the Web Servers worldwide. It is often called the 'World Wide Web'. 

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433 50604
Q:

Choose the correct html tag to make a text italic.

1. <italic>

2. <it>

3. <i>

4. <il>

A) 1 B) 2
C) 3 D) 4
 
Answer & Explanation Answer: C) 3

Explanation:

HTML Tag  is used to make a text italic.

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Q:

Which region in India is known as the "Rice Bowl of India"?

A) Indo-Gangetic plain B) Krishna-Godavari Delta region
C) North-East region D) Kerala and Tamil Nadu
 
Answer & Explanation Answer: B) Krishna-Godavari Delta region

Explanation:

Which_region_in_India_is_known_as_the_Rice_Bowl_of_India1552992452.jpg image

 

In India, Andhra Pradesh & the Krishna-Godavari Delta region is called as "Rice Bowl of India".

 

Coming to the Indian State, Chhattisgarh is also known as Rice Bowl of India.

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167 48854
Q:

Find the next number in the given number series?

2, 19, 0, 21, –2, ?

A) 23 B) 25
C) 27 D) 29
 
Answer & Explanation Answer: A) 23

Explanation:

The given number series 2, 19, 0, 21, –2, ? follows a pattern,

2

2 + 17 = 19

19 - 19 = 0

0 + 21 = 21

21 - 23 = -2

-2 + 25 = 23

 

Hence, the next number in the series is 23.

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2 47710
Q:

Storage capacity of magnetic disk depends on

A) disk pack in disk surface B) tracks per inch of surface
C) bits per inch of tracks D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Magnetic disk is a kind of data storage device. Storage capacity of magnetic disk depends on 

1. tracks per inch of surface

2. bits per inch of tracks

3. disk pack in disk surface

 

It can be shown as ::

 

magnetic_disc1532069041.jpg image

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136 45359
Q:

Which operator performs pattern matching ?

A) LIKE operator B) EXISTS operator
C) BETWEEN operator D) None of these
 
Answer & Explanation Answer: A) LIKE operator

Explanation:

LIKE is a keyword that is used in the WHERE clause. Basically, LIKE allows us to do a search based operation on a pattern rather than specifying exactly what is desired (as in IN) or spell out a range (as in BETWEEN).

 

The syntax is as follows:
SELECT "column_name"
FROM "table_name"
WHERE "column_name" LIKE {PATTERN}

 

{PATTERN} often consists of wildcards.

 

In SQL, there are two wildcards:


% (percent sign) represents zero, one, or more characters.

_ (underscore) represents exactly one character.

 

More :: Certification Questions on SQL

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Q:

If  1 1 1 1 = R
    2 2 2 2 = T
    3 3 3 3 = E
    4 4 4 4 = N

 

Then  5 5 5 5 = ?

A) Y B) Z
C) T D) X
 
Answer & Explanation Answer: A) Y

Explanation:

If you add all the terms of the LHS of equality, then the last letter of the sum written in words would give you the RHS.

1 + 1 + 1 + 1 = 4 = FOUR

2 + 2 + 2 + 2 = 8 = EIGHT

3 + 3 + 3 + 3 = 12 = TWELVE

4 + 4 + 4 + 4 = 16 = SIXTEEN

 

So, following the same pattern.

5 + 5 + 5 + 5 = 20 = TWENTY

 

That gives us our answer to 5 5 5 5 =  "Y".

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