Questions

Q:

 Which of the following is required for the DB2 optimizer to consider a hash join strategy?

A) Optimization level 1 or above B) Equijion predicates
C) Registry variable DB_ANTIJOIN=YES D) SORTHEAP large enough to contain the tables being joined
 
Answer & Explanation Answer: B) Equijion predicates

Explanation:
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Filed Under: IBM Certification

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Q:

Forbes' 2017 named ______ world's richest man ?

A) Bill Gates B) Ratan Tata
C) Mukesh Ambani D) Donald Trump
 
Answer & Explanation Answer: A) Bill Gates

Explanation:
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Filed Under: General Awareness
Exam Prep: Bank Exams , CAT
Job Role: Bank Clerk

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Q:

A theocracy is ruled by religious leaders who

A) claim to act with divine authority B) believe that rule by religious law is wrong
C) believe that a communist government leads best D) claim divine authority sways government
 
Answer & Explanation Answer: A) claim to act with divine authority

Explanation:

A government ruled by religiuos leaders is Theocracy. A theocracy is ruled by religious leaders who claim to act with divine authority.

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Filed Under: Indian Politics
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Q:

The expansion of the rail networks led to

A) Growth in trading between parts of the country B) Growth in Steel industry
C) Both A & B D) Decline in textile industry
 
Answer & Explanation Answer: C) Both A & B

Explanation:

The expansion of the rail networks led to better transport system for trading between many parts of the nation and the steel is the main component in making the rails and the locomotive itself resulting in the growth of the steel industry.

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Filed Under: Indian History
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Q:

Which Indian woman boxing player made the world record by winning the sixth World Championship gold medal in 2018?

A) Pinki Rani B) Sarjubala Devi
C) Mary Kom D) Harmanpreet Kaur
 
Answer & Explanation Answer: C) Mary Kom

Explanation:

Indian_woman_boxing_player_made_the_world_record_by_winning_the_sixth_World_Championship_gold_medal1543296993.jpg image

Chungneijang Mary Kom Hmangte, better known as Mary Kom is an Indian Olympic boxer from Manipur. She is the only woman to become World Amateur Boxing champion for a record six times, and the only woman boxer to have won a medal in each one of the seven world championships.

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Filed Under: Honours and Awards
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Q:

Give the truth table for a Half Adder. Give a gate level Implementation of the same.

Answer

TRUTH TABLE FOR HALF ADDER


A    B  SUM  CARRY


0    0    0         0


0    1    1         0


1    0    1         0


1    1    0         1


INPLEMENTATION:


For SUM, The two inputs A and B are given to XOR gate.


For Carry, The two inputs A and B are given to AND gate.

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Subject: Hardware

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Q:

Which equation is an example of a synthesis reaction?

A) 2H2 + O2 → 2H2O B) Na + Cl → NaCl
C) HA + BOH → H2O + BA D) NaCl + AgNO3 → NaNO3 + AgCl
 
Answer & Explanation Answer: B) Na + Cl → NaCl

Explanation:

When two or more chemical species combine to form a single product, the reaction is said to be synthesis reaction. It is also called as Direct Combination reaction.

 

Here in the given options, Sodium (Na) combines with Chlorine (Cl) to form a more complex single product Sodium Chloride (NaCl).

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Filed Under: Chemistry
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Q:

Which of the following is a characteristic of the Ascomycota?

A) Sac formation B) Zygospore formation
C) Basidium formation D) All of the above
 
Answer & Explanation Answer: A) Sac formation

Explanation:

Ascomycota is a division or phylum of the kingdom Fungi that, together with the Basidiomycota, form the subkingdom Dikarya. Its members are commonly known as the sac fungi or ascomycetes. 

 

Hence, Sac formation is a characteristic of the Ascomycota fungi.

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Filed Under: Biology
Exam Prep: AIEEE
Job Role: Analyst

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