Database Administration Questions


Q:

Brightness of bulb depends on voltage or current?

A) Current B) Voltage
C) Both A & B D) None
 
Answer & Explanation Answer: C) Both A & B

Explanation:

Brightness of bulb depends on both voltage and current. The brightness depends on power.

Since we know that  Power (P) = Voltage x Current = V I

So whether you increase the current or the voltage the brightness will increase.

 

Example Illustration:

 If you connect a long bulb and a round bulb in series, the long bulb glows but the round bulb does not. Both of them have the same current flowing through them (they are in series) but the long bulb has a greater voltage across it because it has more resistance (even though V= IR is not obeyed exactly, voltage drop does depend on the resistance). If you connect a round bulb and a long bulb in parallel, however, it is the round bulb that is brighter because now the voltage across both bulbs is the same but the current is larger through the round bulb (smaller resistance).

 

Hence, the brightness of a bulb depends on power i.e, both voltage and current.

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Filed Under: Physics
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Q:

Find the next number in the following number series?

11, 13, 30, 96, ?

A) 264 B) 392
C) 412 D) 459
 
Answer & Explanation Answer: B) 392

Explanation:

The given number series 11, 13, 30, 96, ? follows a pattern that,

11

11 x 1 + 2 = 13

13 x 2 + 4 = 30

30 x 3 + 6 = 96

96 x 4 + 8 = 392

 

Hence, the next number in the given series is 392.

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Filed Under: Odd Man Out
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6 24462
Q:

Which of the following is not a valid escape code?

A) " B) \
C) ' D) =
 
Answer & Explanation Answer: D) =

Explanation:

The valid escape codes in programming languages are ', ", \, n, or t are the valid escape codes. 

 

For example, the sequence \n usually represents a newline, while the escape sequence \\ represents a backslash, \t usually represents a newtab.

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42 23714
Q:

The famous Rock Garden is located in which city?

A) Jaipur B) Simla
C) Lucknow D) Chandigarh
 
Answer & Explanation Answer: D) Chandigarh

Explanation:

The famous Rock Garden which is also known as Nek Chand's Rock Garden after its founder Nek Chand, a government official who started the garden secretly in his spare time in 1957 is in the city Chandigarh.

 

The Rock Garden of Chandigarh is a sculpture garden in Chandigarh, India.

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95 23402
Q:

Rita ? into the cellar.

Which of the following words best suitable in the place of '?'

A) ascended B) rescinded
C) descended D) intended
 
Answer & Explanation Answer: C) descended

Explanation:

Rita descended into the cellar.

Descended means went down. As the cellar is in the basement, she must go down.

Options and meanings :: 

descended  -  went down 

rescinded   - cancelled or annulled

ascended   - went up 

intended    - meant

 

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27 23045
Q:

Can you spot the missing number?

number_puzzle11531377158.jpg image

A) 3 B) 6
C) Both A & B D) None of the above
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The given number puzzle can be soved in two ways.

Logic 1 ::

Row 1  - 2 x 3 = 6 , 6 x 3 = 18

Row 2  - 4 x 5 = 20 , 20 x 5 = 100

Row 3  - 3 x 7 = 21 , 21 x 7 = 147

 

Hence, the missing number could be 3.

 

Logic 2 ::

Row 1 - 6 x (2+1) = 18

Row 2 - 20 x (4+1) = 100

Row 3 - 21 x (6+1) = 147

 

Hence, the missing number could be 6.

 

Therefore, 3 or 6 is the right answer.

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130 22516
Q:

Which of the following BEST describes a Service Desk?

A) A dedicated number of staff handling Incidents and service requests B) A process within Service Operation providing a single point of contact
C) A dedicated number of staff handling service requests D) A dedicated number of staff answering questions from users
 
Answer & Explanation Answer: A) A dedicated number of staff handling Incidents and service requests

Explanation:

A dedicated number of staff handling Incidents and service requests best describes a Service Desk.

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20 22444
Q:

Man : Biography :: Nation : ?

A) History B) Leader
C) Story D) Nationalism
 
Answer & Explanation Answer: A) History

Explanation:

Detailed description of a man's life is Biography.

Similarly, detailed description of a Nations is called History.

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Filed Under: Analogy
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