⏰ Q3W2: Antivirus & Computer Network

Which best describes the main purpose of diagnostic software?

• To permanently block unauthorized access to online accounts

• To analyze and detect problems in a computer system

• To encrypt files to prevent external access

• To delete outdated programs that slow down the system

Which of the following is a hardware diagnostic tool?

• CHKDSK

• Speccy

• MemTest86

• Microsoft System File Checker (SFC)

A program that self-replicates and spreads across networks WITHOUT user action is called a:

• Virus

• Worm

• Trojan Horse

• Rootkit

Which malware pretends to be harmless but secretly carries malicious code?

• Adware

• Spyware

• Trojan Horse

• Ransomware

A tool that secretly records everything a user types is specifically classified as:

• Worm

• Keylogger

• Trojan RAT

• Adware

Which malware type is designed to lock files and demand payment?

• Ransomware

• Adware

• Virus

• Spyware

An attack where hackers try every possible password combination until one works is known as:

• Dictionary attack

• Phishing

• Brute-force attack

• Social engineering

Which attack involves tricking users into revealing sensitive information?

• Denial of Service

• Virus infection

• Dictionary guessing

• Social engineering

An overloaded website that becomes unavailable due to massive traffic is likely experiencing:

• Brute-force attack

• DoS / DDoS attack

• Phishing scam

• RAT infection

Antivirus software that provides firewall + phishing protection in addition to malware defense is:

• Standalone Antivirus

• Internet Security Suite

• Cloud-Based Antivirus

• Memory Diagnostic Tool