Database Administration Questions


Q:

Is rusting a physical or chemical change?

Answer

In chemistry rusting is called as oxidation. Oxidation is a chemical process where metal gains oxygen and become oxide. In rusting the Iron ore make a chemical reaction with the oxygen in the presence of water and environmental or atmospheric moisture to produce an Iron oxide. Iron oxide is otherwise called as rust.


The rusting of iron is a chemical change because it is two substances reacting together to make a new substance. 


 


Rusting would only be a physical change if iron molecules remained pure iron throughout the process.

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Q:

Which continent has the least countries?

A) Africa B) South America
C) Antarctica D) Europe
 
Answer & Explanation Answer: C) Antarctica

Explanation:

Africa - 54 countries

South America - 12 countries

Antarctica - 0 countries

Europe - 43 countries.

 

Hence, Antarctica continent has the least countries.

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0 3541
Q:

What words are similar in meaning to Run?

A) Race B) Amble
C) Lope D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

All of the options given are synonyms of RUN.

 

Hence, Race, Amble, Lope are similar in meaning to the word Run.

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

2 3536
Q:

Who has won the orange cap for scoring the most runs in IPL 2018?

A) Rishabh Pant (Delhi Daredevils) B) Virat Kohli (Royal Challengers Bangalore)
C) Ambati Rayudu (Chennai Super Kings) D) Kane Williamson (Sunrisers Hyderabad)
 
Answer & Explanation Answer: D) Kane Williamson (Sunrisers Hyderabad)

Explanation:

Kane Williamson, the captain of Sunrisers Hyderabad team has won orange cup for scoring the most runs in IPL 2018.

The orange cap is presented annually in the Indian Premier League to the highest run scorer.

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

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Q:

Current search engines function by recognizing keywords.

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

Explanation:

A search engines are a software systems used for searching about any information in the world on the web.


                         current_search_engines_function_by_recognizing_keywords1536129682.png image


Search engines like Google, Bing, Internet explorer, Yahoo, etc... functions by providing relevant search results for the keywords user searches. 


 


Hence, the given statement is TRUE.

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4 3519
Q:

According to new federal data released, the US state whose economy has surpassed that of the UK to become the world’s fifth largest was

A) Massachusetts B) Florida
C) Hawaii D) California
 
Answer & Explanation Answer: D) California

Explanation:

The US state California's  economy has surpassed that of the UK to become the world’s fifth largest, according to new federal data released.

 

With a GDP of $2.7 trillion, California is now only behind the US, China, Japan and Germany.

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2 3514
Q:

Which of the following is the largest unit of information?

A) 1 TB B) 1 GB
C) 1 MB D) 1 KB
 
Answer & Explanation Answer: A) 1 TB

Explanation:

1 TB  >  1 GB  >  1 MB  >  1 KB

 

1 Tb (Tera Byte) = 1024 GB

 

1 GB (Giga Byte) = 1024 MB

 

1 MB (Mega Byte) = 1024 KB

 

1 KB (Kilo Byte) = 1024 Bytes

 

1 Byte = 8 Bit

 

Hence, largest unit of information is TB (Tera Byte) and smallest unit of information is Bit.

 

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4 3512
Q:

Why did charles babbage invent the computer?

Answer

Charles Babbage, the father of computer, invented the first general-purpose computer in an effort to prevent the mathematical errors that were prevalent in the human-calculated mathematics of his time.

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