Questions

Q:

Which of the following is system software?

A) MS Paint B) MS Excel
C) MS Word D) MS Windows
 
Answer & Explanation Answer: D) MS Windows

Explanation:

We know that, the collection of programs which performs specific tasks in a computer is called as software. Software in a computer is of two types. They are :

 

1. Aplication Software

2. System Software

 

System software is a computer program that performs the basic functionaility of a computer i.e, running a systems hardware and applications like loading programs, saving data, displaying, etc...

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Q:

What is pre-emptive and non-preemptive scheduling?

Answer

Preemptive scheduling: The preemptive scheduling is prioritized. The highest priority process should always be the process that is currently utilized.


Non-Preemptive scheduling: When a process enters the state of running, the state of that process is not deleted from the scheduler until it finishes its service time.

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Q:

In a compound, chemical energy is contained in the

A) bonds B) movement of the electrons
C) unbonded electrons D) nuclei of the atoms
 
Answer & Explanation Answer: A) bonds

Explanation:

chemical energy is contained in the chemical bonds between the reactants in the chemical compounds.

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Q:

Stars are held together by

A) Gravitational forces B) Electrical forces
C) Ionic forces D) Magnetic forces
 
Answer & Explanation Answer: A) Gravitational forces

Explanation:

A star is a self luminous astronomical object and shines due to internal radiation from the enrgy sources. All stars are held together by their own gravity called Gravitational force.

Stars_are_held_together_by1560151249.jpg image

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Q:

Depth of ocean is measured by

A) Animometer B) Aerometer
C) Siesmometer D) Fathometer
 
Answer & Explanation Answer: D) Fathometer

Explanation:

Fathometer is used to measure the depth of the ocean.

depth_of_ocean_is_measured_by1542975982.jpg image

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Q:

What is the opposite of opposite?

A) Identical B) Not alike
C) Not same D) Contrast
 
Answer & Explanation Answer: A) Identical

Explanation:

Opposite means not identical, not same, not alike, contrast...

 

Here in the question, the opposite of the word opposite is asked and is opposite of not same , not identical or not alike is same, like, identical,...

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Q:

What is e-commerce?

A) Buying and selling international goods B) Buying and selling products and services not found in stores
C) Buying and selling products and services over the internet D) Buying and selling products having to do with computer
 
Answer & Explanation Answer: C) Buying and selling products and services over the internet

Explanation:
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Q:

Which country is going to launch the world's first nuclear power plant (Sanmen Nuclear Power Station) that is immune to meltdown ?

A) India B) USA
C) China D) Russia
 
Answer & Explanation Answer: C) China

Explanation:
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