Week 3 Review Pt 2

What is the main difference between a virus and a worm?

• A virus spreads by infecting files, while a worm propagates in memory and over networks.

• A worm spreads by infecting files, while a virus propagates in memory and over networks.

• A virus uses document macros to spread, while a worm does not.

• A worm uses document macros to spread, while a virus does not.

Answer explanation

A virus spreads by infecting files, while a worm propagates in memory and over networks.

What type of virus does not use document macros to spread?

• Macro virus

• Worm

• Trojan

• Spyware

Answer explanation

A worm is a type of virus that does not use document macros to spread. Unlike macro viruses, worms can replicate and spread independently without relying on user interaction.

Which type of malware self-replicates in memory and over computer networks?

• Virus

• Worm

• Ransomware

• Trojan

Answer explanation

Worms are a type of malware that self-replicates in memory and over computer networks, making them the correct choice for this question.

How can malware infect your computer through web browsing?

• By exploiting a vulnerability in the software installed on your computer

• By outdated hardware

• By a properly configured firewall

• By using a strong password

Answer explanation

By exploiting a vulnerability in the software installed on your computer

What is a potential consequence of an improperly configured firewall?

• It may allow prohibited network traffic into or out of a network

• It may cause hardware failure

• It may slow down the computer

• It may prevent software updates

Answer explanation

An improperly configured firewall may allow prohibited network traffic into or out of a network, leading to security vulnerabilities.

What is a human vulnerability that can be exploited by malicious people during social engineering?

• Ability to be deceived or tricked

• Outdated software

• Weak passwords

• Unused OS features

Answer explanation

The human vulnerability of being deceived or tricked can be exploited by malicious individuals during social engineering attacks.

What does configuring data back-ups provide in the context of ransomware attacks?

• Reduces the attack surface

• Prevents malware infection

• Provides a mechanism to recover from a ransomware attack

• Increases computer speed

Answer explanation

Configuring data back-ups provides a mechanism to recover from a ransomware attack, allowing for restoration of encrypted files without paying the ransom.

What is the purpose of host hardening?

• To reduce the attack surface

• To increase network traffic

• To slow down the computer

• To allow all software installations

Answer explanation

To reduce the attack surface

What is one system hardening technique mentioned in the text?

• Disabling unused OS features and services

• Installing more software

• Increasing network ports

• Using outdated hardware

Answer explanation

Disabling unused OS features and services is mentioned as a system hardening technique in the text.

What does ransomware typically do to extort money from the victim?

• Encrypts the file system

• Deletes all files

• Slows down the computer

• Sends spam emails

Answer explanation

Ransomware typically extorts money by encrypting the file system, making the victim's files inaccessible until a ransom is paid.