Explanation

Multitasking provides process and memory management services

Multitasking allows two or more tasks, jobs, or programs to run simultaneously.

Multitasking Most of today's popular operating systems offers multitasking services. 

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ND04-12-2022

Explanation

Antonio Costa is re-elected as the Prime Minister of Portugal

Antonio Guterres is a Portuguese politician and diplomat. 

Explanation

blackmail means the act of forcing a person to do or pay for something, especially by a threat to reveal a secret.

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ND4-12-2022

Explanation

You are paying less attention to your studies than you used to.  “less” in this sentence is an "adjective"

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An adjective is a word that tells us more about a noun (You are paying).

In the above sentence " the word" less is tell about the noun "you are playing" so we mark the option "less"

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ND4-12-2022

Explanation

A switched-mode power supply (SMPS) also known as (a switching-mode power supply, switch-mode power supply, or switched power supply)

• SMPS is an electronic power supply system that makes use of a switching regulator to transfer electrical power effectively.
  

SMPS transfers power from a DC or AC source

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ND04-12-2022

Explanation

Author: مصنف

Novel:  ناول

sculpture:  مجسمہ

statue:  بت

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ND4-12-2022

Explanation

software requirements specification (SRS)

Traceable – and SRS is traceable if the origin of each of its requirements is clear

and if it makes it easy to reference each requirement in future development.

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ND4-12-2022

Explanation

By encryption of a text, we mean scrambling it to preserve its security

encryption is a crucial feature of a safe and trustworthy Internet.

encryption helps provide data security for sensitive information.

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ND4-12-2022

Explanation

Data and programs are stored in the main memory when the processor uses them.

while 

 programs, files, and data stored in the computer are called Hard Disk

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ND04-12-2022

Explanation

In this historical arena, a single wall still stood mute testimony to nature's force

س تاریخی میدان میں، ایک دیوار اب بھی قدرت کی قوت کی گونگی گواہی میں کھڑی ہے۔

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testimony: evidence or proof of something

Testimony is best to keep the meaning of the original sentence. 

if we " select" another option "it can change the meaning of the original sentence"

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ND4-12-2022