Q:

What is Primary Key in DBMS?

Answer

A primary key is a special relational database table column or combination of columns designated to uniquely identify all table records. That is, A primary key is a column or set of columns in a table that uniquely identifies tuples (rows) in that table.

A primary key, also called a Primary Keyword.

Main Features Primary key are ::

It must contain a unique value for each row of data.

It cannot contain null values.

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Subject: Oracle Certification
Job Role: Database Administration , IT Trainer , Software Architect

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Q:

Someone who loans money is called

A) Lender	B) Borrower
C) Investee	D) Investor

Answer & Explanation Answer: A) Lender

Explanation:

Someone who receives money in exchange for a promise to pay it back later is called a borrower1, and the person making the loan is the lender.

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Q:

RBI issued currency notes under which system

A) Maximum Fiduciary System	B) Proportional Reserve System
C) Fixed Fiduciary System	D) Fixed Minimum Reserve System

Answer & Explanation Answer: D) Fixed Minimum Reserve System

Explanation:

RBI issued currency notes under Fixed Minimum Reserve System.

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Q:

The deepest oceanic trench Mariana is located in ______

A) Atlantic Ocean	B) Arctic Ocean
C) Pacific Ocean	D) Indian Ocean

Answer & Explanation Answer: C) Pacific Ocean

Explanation:

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Filed Under: World Geography

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Q:

In the following question, a sentence has been given in Active/Passive voice. Out of four alternatives suggested, select the one which best expresses the same sentence in Passive/Active voice.
Somebody told me that there had been a robbery in the jewellery exhibition.

A) I was informed that there was a robbery in the jewellery exhibition.	B) I was told by somebody that there has been a robbery in the jewellery exhibition.
C) I was told by somebody about a robbery in the jewellery exhibition.	D) I was told about a robbery in the jewellery exhibition.

Answer & Explanation Answer: B) I was told by somebody that there has been a robbery in the jewellery exhibition.

Explanation:

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Exam Prep: Bank Exams

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Q:

Improve the bracketed part of the sentence.
Bull markets, John Templeton said, are born on pessimism, grow on scepticism, mature on optimism and (die for) euphoria.

A) die on	B) die at
C) die above	D) No improvement

Answer & Explanation Answer: A) die on

Explanation:

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Q:

What is the maximum number of characters when applying MsgBox and InputBox ?

Answer

The maximum number of characters allowed is 1024 characters.

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Q:

What are the two kinds of Rotatory motion?

A) Spin and Vibrational motion	B) Spin and Projectile motion
C) Spin and Orbital motion	D) Spin and Translatory motion

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