Questions

Q:

which of the following represents a set of properties that guarantee that database transactions are processed reliably in computer science ?

A) Buffer Cache B) ACID
C) Foreign Key D) None
 
Answer & Explanation Answer: B) ACID

Explanation:

ACID means (Atomicity, Consistency, Isolation, Durability) is a set of properties of database transactions intended to guarantee validity even in the event of errors, power failures, etc.

In the context of databases, a sequence of database operations that satisfies the ACID properties and, thus, can be perceived as single logical operation on the data, is called a transaction. For example, a transfer of funds from one bank account to another, even involving multiple changes such as debiting one account and crediting another, is a single transaction.

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Filed Under: IBM Certification
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Q:

' World Meteorological Day ' is observed on ?

A) March 24 B) March 23
C) March 20 D) March 25
 
Answer & Explanation Answer: B) March 23

Explanation:

Each year, the World Meteorological Organisation (WMO), its members and the worldwide meteorological community around the world celebrate World Meteorological Day on 23rd March around a chosen theme. And this year the theme is "Understanding the cloud".

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Q:

A push or pull on an object is called

A) Force B) Weight
C) Opposition D) None of the above
 
Answer & Explanation Answer: A) Force

Explanation:

The push or pull on an object that causes it to move or stop or change direction is called as Force.

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Filed Under: General Science
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Q:

Electrostatic precipitator is used to control

A) Water pollution B) Noise pollution
C) Air pollution D) Solid waste
 
Answer & Explanation Answer: C) Air pollution

Explanation:

Electrostatic precipitator is used to control Air pollution. An electrostatic precipitator is a filtration device that removes fine particles, like dust and smoke, from a flowing gas using the force of an induced electrostatic charge minimally impeding the flow of gases through the unit.

                         Electrostatic_precipitator_is_used_to_control1564054124.png image

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Filed Under: Physics
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Q:

What are different functional units in 8086?

Answer

Bus Interface Unit and Execution unit, are the two different functional units in 8086.

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Subject: Hardware

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Q:

A Big Draw meaning

A) a lovely spectacle B) a game without any result
C) a huge attraction D) a keen contest
 
Answer & Explanation Answer: C) a huge attraction

Explanation:
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Filed Under: English
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Q:

A person who pretends to be what he is not?

A) Posthumous B) Glutton
C) Imposter D) Rogue
 
Answer & Explanation Answer: C) Imposter

Explanation:

A person who pretends to be what he is not is an Imposter.

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Q:

What molecule makes the trunk of a tree sturdy?

A) Disaccharide B) Fructose
C) Cellulose D) Glucose
 
Answer & Explanation Answer: C) Cellulose

Explanation:

Cellulose is closely related to sugar and rated as a carbohydrate, which means that it is a compound of carbon, hydrogen and oxygen. The woody trunk of a tree is no more than dead cell walls.

tree1533617490.jpg image

Trunk of a tree refers to the main wooden axis of a tree that supports the branches and is supported by and directly attached to the roots. The molecule that makes it sturdy is cellulose.

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Filed Under: General Science
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