Competitive Exams : Computer Awareness - Security (Set 1)

Question 1

What is the primary purpose of a firewall in a computer network?

Accepted Answer

A) To monitor and control incoming and outgoing network traffic based on predetermined security rules.

Answer

B) To encrypt data before it is sent over the internet.

Answer

C) To detect and remove computer viruses.

Answer

D) To create backups of important files.

Answer

E) To speed up internet connection.

Question 2

Which of the following types of malware disguises itself as legitimate software to trick users into installing it?

Accepted Answer

C) Trojan horse

Answer

A) Virus

Answer

B) Worm

Answer

D) Spyware

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E) Adware

Question 3

Which of the following refers to an attempt to acquire sensitive information such as usernames, passwords, and credit card details, often for malicious reasons, by masquerading as a trustworthy entity in an electronic communication?

Accepted Answer

C) Phishing

Answer

A) Spamming

Answer

B) Hacking

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D) Spoofing

Question 4

What is the primary purpose of a firewall in a computer network?

Accepted Answer

B) To monitor and control incoming and outgoing network traffic

Answer

A) To speed up internet browsing

Answer

C) To store encrypted data

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D) To provide physical security to servers

Question 5

Which type of malware replicates itself to spread to other computers, often without requiring any human interaction?

Accepted Answer

A) Worm

Answer

B) Trojan Horse

Answer

C) Spyware

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D) Adware

Question 6

What does 'DoS' stand for in the context of network security?

Accepted Answer

D) Denial of Service

Answer

A) Data of Service

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B) Digital of Security

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C) Drive of System

Question 7

Which of the following is a cryptographic protocol that provides communication security over a computer network?

Accepted Answer

B) SSL/TLS

Answer

A) HTTP

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C) FTP

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D) DNS

Question 8

What is the term for unsolicited commercial email messages, often sent in bulk?

Accepted Answer

A) Spam

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B) Malware

Answer

C) Phishing

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D) Spyware

Question 9

A keylogger is a type of malware that is primarily used for:

Accepted Answer

C) Recording keystrokes

Answer

A) Encrypting files

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B) Blocking network access

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D) Optimizing system performance

Question 10

Which security principle ensures that data is not altered or destroyed in an unauthorized manner?

Accepted Answer

D) Integrity

Answer

A) Confidentiality

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B) Availability

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C) Non-repudiation

Question 11

What is the practice of disguising communications from an unknown source as being from a known, trusted source?

Accepted Answer

B) Spoofing

Answer

A) Phishing

Answer

C) Hacking

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D) Cracking

Question 12

Which of the following best describes ransomware?

Accepted Answer

A) Malware that encrypts a victim's files and demands payment for their release.

Answer

B) A program that records keystrokes.

Answer

C) Software that displays unwanted advertisements.

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D) A virus that replicates itself across networks.

Question 13

What is a VPN primarily used for?

Accepted Answer

C) To create a secure, encrypted connection over a less secure network

Answer

A) To increase internet speed

Answer

B) To block advertisements

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D) To store backups of data

Question 14

The process of verifying the identity of a user, process, or device is known as:

Accepted Answer

B) Authentication

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A) Authorization

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C) Encryption

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D) Auditing

Question 15

Which term describes a software program that appears legitimate but contains malicious functions?

Accepted Answer

D) Trojan Horse

Answer

A) Worm

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B) Virus

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C) Rootkit

Question 16

What is the term for a cyber-attack that manipulates people into performing actions or divulging confidential information?

Accepted Answer

A) Social Engineering

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B) Brute Force Attack

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C) Buffer Overflow

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D) SQL Injection

Question 17

Which of the following is a common method for achieving data confidentiality?

Accepted Answer

C) Encryption

Answer

A) Data backup

Answer

B) Antivirus software

Answer

D) Firewall

Question 18

What is the term for a collection of malicious software designed to give an unauthorized user access to a computer or area of its software and its data while actively hiding its presence?

Accepted Answer

D) Rootkit

Answer

A) Adware

Answer

B) Spyware

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C) Worm

Question 19

Multi-factor authentication (MFA) requires:

Accepted Answer

B) Two or more verification factors to gain access to a resource.

Answer

A) Only a password.

Answer

C) Biometric data only.

Answer

D) A single strong password with special characters.