Questions

Q:

Difference between Candidate key and Primary key?

Answer

Candidate Key – A Candidate Key can be any column or a combination of columns that can qualify as unique key in database. There can be multiple Candidate Keys in one table. Each Candidate Key can qualify as Primary Key. 


Primary Key – A Primary Key is a column or a combination of columns that uniquely identify a record. Only one Candidate Key can be Primary Key.






        • One needs to be very careful in selecting the Primary Key as an incorrect selection can adversely impact the database architect and future normalization. For a Candidate Key to qualify as a Primary Key, it should be Non-NULL and unique in any domain.




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Q:

What is the RST for the TRAP?

Answer

RST 4.5 is called as TRAP.

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Subject: Hardware

1 3992
Q:

The Yarlung Zangbo river in India is known as

A) Godavari B) Brahmaputra
C) Ganga D) Indus
 
Answer & Explanation Answer: B) Brahmaputra

Explanation:

The Yarlung Zangbo river in India is known as Brahmaputra. The river Brahmaputra in China is called Yarlung Tsangpo or Yarlung Zangbo river. In Assam and Arunachal Pradesh it is called Lohit or luit meaning blood.

the_yarlung_zangbo_river_in_india_is_known_as1560848958.jpg image 

The Brahmaputra is one of the major rivers of Asia, a trans-boundary river which flows through China, India and Bangladesh.

 

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Filed Under: Indian Geography
Exam Prep: AIEEE , Bank Exams , CAT
Job Role: Analyst , Bank Clerk , Bank PO

7 3989
Q:

Cretinism is due to the disorder of the glands

A) Thymus B) Parathyroid
C) Thyroid D) Adrenal
 
Answer & Explanation Answer: C) Thyroid

Explanation:

Cretinism is a disease caused by hypothyroidism (less thyroxine formation) . The symptoms of the disease are retardation of mental, physical and sexual developments. potbelly, protruding tongue, dry skin etc are also indicative of this disease.

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Filed Under: Biology

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Q:

What organelle allows some protists to detect light?

Answer

An organelle called Eyespot allows some protists to detect light. It allows the cells to sense light direction and intensity and respond to it by swimming either towards the light (positive phototaxis) or away from the light (negative phototaxis).


 


Eyespot is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms such as euglenids.


 


Eyespot-mediated light perception helps the cells in finding an environment with optimal light conditions for photosynthesis. Eyespots are the simplest and most common "eyes" found in nature, composed of photoreceptors and areas of bright orange-red pigment granules.

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Subject: Biology Exam Prep: AIEEE , Bank Exams , CAT , GATE
Job Role: Analyst , Bank Clerk , Bank PO

4 3988
Q:

Who Invented Dynamite Explosive Material?

A) Alfred Bernhard Nobel B) Levi Strauss
C) Percy LeBaron Spencer D) Garrett Augustus Morgan
 
Answer & Explanation Answer: A) Alfred Bernhard Nobel

Explanation:
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Filed Under: Inventions

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Q:

In which core leader competency is the warrior ethos exemplified

Answer

The U.S. Army identifies eight core leadership competencies. One of these--leading by example--exemplifies the warrior ethos. The leader is always required to behave in a way that provides those under his or her command with a positive and effective role model.


 


 In_which_core_leader_competency_is_the_warrior_ethos_exemplified1558508870.jpg image


 


The warrior ethos is a value that is eschewed by the U.S. Army.


The Army defines it as the adherence to a code that includes always putting the mission first, never accepting defeat, never quitting, and never leaving behind a comrade who has fallen.

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Subject: World Organisations Exam Prep: Bank Exams
Job Role: Bank Clerk

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Q:

The most imposing of all the pyramids is the Great Pyramid at Gizeh near Cairo, was built about 2650 B.C by the ____ of the Old kingdom.

A) Pharaoh Cheops (Khufu) B) King Tutankhamen
C) Hammunrabi D) None of these
 
Answer & Explanation Answer: A) Pharaoh Cheops (Khufu)

Explanation:
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Filed Under: World History

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