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Q:

What is an Oracle index?

Answer

An index is an optional structure associated with a table to have direct access to rows, which can be created to increase the performance of data retrieval. Index can be created on one or more columns of a table.

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Subject: Oracle Certification
Job Role: Database Administration

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Q:

Organisms that feed on the excreta of other organisms are called 

A) autotrophs B) heterotrophs
C) coprophagous D) saprotrophs
 
Answer & Explanation Answer: C) coprophagous

Explanation:

The word coprodaeum refers to the last part of the elimentary canal.The excreta (undigested, matter) comes out of that part. So, the organisms that take in such materials are called coprophagous.

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Filed Under: Biology

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Q:

Which of the following are true of meditation in buddhism?

A) Right concertation is reached through meditation B) It can involve concetration on your breathing
C) It can mean visualizing certain things D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:
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Filed Under: General Awareness
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank PO

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Q:

Who invented Radar ?

Answer

Robert Watson Watt

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Subject: Inventions

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Q:

" World Tuberculosis Day " is observed on ?

A) 24th March B) 22nd March
C) 23rd March D) 21st March
 
Answer & Explanation Answer: A) 24th March

Explanation:
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Filed Under: Important Days and Years
Exam Prep: Bank Exams , CAT
Job Role: Bank PO

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Q:

Technically, tempera is paint in which the vehicle is in

A) an emulsion B) a pigment
C) an impasto D) a ground
 
Answer & Explanation Answer: A) an emulsion

Explanation:
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Filed Under: Chemistry
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Q:

Which formula represents an amino acid?

A) R-CH3(NH2)-COOH B) R-CH(NH2)-COOH
C) R-CH2(NH2)-COOH D) R-CH3(NH2)-COH
 
Answer & Explanation Answer: B) R-CH(NH2)-COOH

Explanation:

Amino acids are the building blocks of proteins. There are about 21 essential amino acids in the human body like histidine, leucine, lysine... The general formula for amino acid is R-CH(NH2)-COOH.

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Filed Under: Biology
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Q:

Bone strength in later life depends on

A) the formation of dense bones during youth B) the increased calcium absorption in the elderly
C) the increased production of estrogen after menopause D) reducing physical activity to protect bones
 
Answer & Explanation Answer: A) the formation of dense bones during youth

Explanation:
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Filed Under: Biology
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