1) A malicious software that self-replicates and spreads to other computers or networks. a) Firewall b) Encryption c) Virus d) Phishing 2) A technique used to gain unauthorized access to a system or network by exploiting software vulnerabilities. a) Firewall b) Exploit c) Proxy d) Brute force 3) A method of disguising information to make it unreadable to unauthorized parties. a) Encryption b) Malware c) Rootkit d) Proxy 4) A program or device that filters network traffic to protect against unauthorized access. a) Spyware b) DDoS c) Worm d) Firewall 5) A type of attack that involves flooding a system with more traffic than it can handle, causing it to become unavailable. a) Spoofing b) Ransomware c) Phishing d) DDoS 6) A program or code that disguises itself as a legitimate program but performs malicious activities. a) Worm b) Rootkit c) Trojan d) Firewall 7) An attack that tricks individuals into revealing sensitive information by pretending to be a trustworthy entity. a) Phishing b) Ransomware c) Spyware d) Spoofing 8) An unauthorized person who gains access to computer systems or networks for malicious purposes. a) Cracker b) Hacker c) Administrator d) Programmer 9) A secret word or code used to gain access to a system or network. a) Malware b) Password c) Ransomware d) Exploit 10) A technique that intercepts and redirects network traffic to an attacker's computer. a) Proxy b) Rootkit c) Encryption d) Firewall 11) A method of gaining unauthorized access to a system by repeatedly guessing passwords. a) Phishing b) Brute force c) Spoofing d) Ransomware 12) A technique used to gather sensitive information by eavesdropping on network communications. a) Rootkit b) Firewall c) Sniffing d) Proxy 13) A program that automatically spreads to other systems without human intervention. a) Worm b) Trojan c) DDoS d) Virus 14) A program that locks or encrypts files or systems and demands a ransom for their release. a) Ransomware b) Spyware c) Firewall d) Proxy 15) A program that records keystrokes on a computer without the user's knowledge. a) Firewall b) Encryption c) Decryption d) Keylogger

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