Database Administration Questions


Q:

Explain what is posting key and what does it control ?

Answer

In order to determine the transaction type which is entered in the line item, a two digit numerical is used known as 'Posting Key'
Posting key determines:
a) Account Types
b) Types of posting. Debit or Credit
c) Field status of transaction

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Q:

Light travels fastest in

A) Air B) Water
C) Glass D) Diamond
 
Answer & Explanation Answer: A) Air

Explanation:

Light travels fastest in Vacuum. The fastest thing in the whole universe is the speed of light in a vacuum like outer space. It is about 2.99 x 108 m/s. 

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

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Q:

The blind spot of the eye is where the optic nerve leaves the eyeball.

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

Explanation:

Everyone of us have a blind spot which is a small portion within the visual field of every eye where the optic nerve and blood vessels leave the eyeball. Optic nerve is connected to brain ehich carries images of what we see.


the_blind_spot_of_the_eye_is_where1536397433.jpg image

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Subject: Biology
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO , Database Administration

0 3147
Q:

Which IT giant has launched learning app 'InfyTQ' for engineering students?

A) GOOGLE B) TCS
C) Infosys D) Cognizant
 
Answer & Explanation Answer: C) Infosys

Explanation:

Infosys has announced the launch of a digital platform offering learning and engagement experiences for engineering students.

InfyTQ is a free platform open to all engineering students in their third and fourth year. The platform encourages holistic development by imparting technical as well as professional skills and helps them become industry ready.

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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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Q:

Which of the following is an example of plagiarism?

A) A student is expected to write a book report about a book that his teacher has assigned. The student doesn't want to read the book and is bored with the subject. He visits websites that provide reviews and book reports and he copies from each of the diffe B) A writer decides that he wants to create an Internet website to generate ad revenue. Instead of writing his own articles, he visits twenty other websites that have articles on the topic in which he is interested. He copies each of the articles, changes th
C) When a writer reuses a mix of word, phrases, and ideas from a source without indicating which words and ideas have been borrowed and/or without properly citing the source. D) All of the above
 
Answer & Explanation Answer: D) All of the above

Explanation:

Duplicating the content or Copying words or ideas from someone else WITHOUT giving credit is called Plagiarism.

Plagiarism can be a violation of copyright laws and can be considered cheating.

  

Types of Plagiarism :: 

 

1. Direct Plagiarism

 

2. Mosaic Plagiarism

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

2 3135
Q:

What can you serve but never eat?

Answer

A Badminton shuttle or a tennis ball.

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Q:

6 divided by 2(1 + 2) =

A) 1 B) 0
C) 9 D) Can't be determined
 
Answer & Explanation Answer: C) 9

Explanation:

The given expression can be simplified as

÷ 2 (1 + 2)

The expression can be simplified further by the order of operations, using BODMAS rule.

 

First evaluate Parentheses/Brackets, then evaluate Exponents/Orders, then evaluate Multiplication-Division, and finally evaluate Addition-Subtraction.

 

Now, the expression becomes ÷ 2 (3)

 

According to the order of operations, division and multiplication have the same precedence, so the correct order is to evaluate from left to right. First take 6 and divide it by 2, and then multiply by 3.

6 ÷ 2 × 3

= 3 × 3

= 9

But not  6÷2×3 = 6 ÷ 6 = 1

Screenshot_(21)1528090844.jpg image 

 

Hence, 6 ÷ 2 (1 + 2) = 9.

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