Database Administration Questions


Q:

A column defined as UNIQUE can contain Nulls while a column defined as PRIMARY KEY can't contain Nulls

A) TRUE B) FALSE
Answer & Explanation Answer: A) TRUE

Explanation:

Because a table can have only one primary key

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Q:

IF YOU HAVE ME, YOU WANT TO SHARE ME. IF YOU SHARE ME, YOU HAVEN'T GOT ME. WHAT AM I?

Answer

A Secret is what you want to share if you have with you. And if you share that secret with anyone, then secret will not be with you only.

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Q:

Synonym of Trustworthy?

A) Tenacity B) Insolent
C) Resolute D) Reliable
 
Answer & Explanation Answer: D) Reliable

Explanation:
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Q:

Grand Central Terminal Park Avenue is the world's

A) smallest railway station B) largest railway station
C) longest railway station D) None of above
 
Answer & Explanation Answer: B) largest railway station

Explanation:

Grand Central Terminal also referred to as Grand Central Station or Grand Central is the world’s largest railway station in terms of platforms in New York City with 44 platforms covering 48 acres.

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Q:

Chinese writers mention India by the name of

A) Yin-tu B) Si-Yu-Ki
C) Sikia-Pono D) Fo-Kwo-Ki
 
Answer & Explanation Answer: A) Yin-tu

Explanation:

The Chinese writers mention India by the name of "Yin-tu".

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Q:

6 B in an O?

A) 6 books in an order B) 6 balls in an over
C) 6 bats in an odd D) None of the above
 
Answer & Explanation Answer: B) 6 balls in an over

Explanation:

6 b in an o means 6 balls in an over in cricket.

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Q:

System Study involves

A) documenting the existing system B) identifying current deficiencies and establishing new goals
C) study of an existing system D) All the above
 
Answer & Explanation Answer: D) All the above

Explanation:
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Filed Under: Computer
Exam Prep: AIEEE , Bank Exams , CAT , GATE , GRE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration , IT Trainer

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Q:

One light year is approximately equal to

A) 10^12 mts B) 10^16 mts
C) 10^11 mts D) 10^13 mts
 
Answer & Explanation Answer: B) 10^16 mts

Explanation:

Light year is the unit of to express astronomical distances, that light can travel in one year. Light moves at a velocity of about 300,000 kilometers (km) each second. So in one year, it can travel about 10 trillion km. More precisely, one light-year is equal to 9,500,000,000,000 kilometers.

 

Approximately, 1 light year = 10^16 mts.

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Filed Under: Physics
Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration

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