Computer Security — Practice MCQs for CCAT

Correct Answer: B — Malicious software

A computer virus is malicious software that can replicate and spread to other computers.

Correct Answer: C — Protect from unauthorized access

A firewall monitors and controls network traffic to protect from unauthorized access.

Correct Answer: B — Fraudulent attempt to obtain sensitive data

Phishing is a fraudulent attempt to obtain sensitive information by disguising as a trustworthy entity.

Correct Answer: B — Protect data

Encryption converts data into a coded form to protect it from unauthorized access.

Correct Answer: B — Malware disguised as legitimate software

A Trojan horse is malware that disguises itself as legitimate software to trick users.

Correct Answer: B — Secretly collect user information

Spyware secretly monitors and collects user information without consent.

Correct Answer: C — Mix of letters, numbers, symbols

A strong password contains a mix of uppercase, lowercase, numbers, and special symbols.

Correct Answer: B — Two different verification methods

Two-factor authentication requires two different methods to verify identity.

Correct Answer: A — Malicious software

Malware is short for malicious software - any software designed to harm.

Correct Answer: B — Secure web communication

SSL (Secure Sockets Layer) provides secure encrypted communication over the internet.

Correct Answer: B — Overwhelming a server with traffic

DDoS (Distributed Denial of Service) floods a server with traffic to make it unavailable.

Correct Answer: B — Malware that encrypts files and demands payment

Ransomware encrypts user files and demands payment for the decryption key.

Correct Answer: B — Manipulating people to reveal confidential information

Social engineering manipulates people into revealing confidential information.

Correct Answer: B — Software that records keystrokes

A keylogger secretly records keyboard inputs to capture passwords and sensitive data.

Correct Answer: B — Using physical characteristics for verification

Biometric authentication uses physical characteristics like fingerprint or retina for verification.

Correct Answer: A — Virtual Private Network

VPN stands for Virtual Private Network, providing secure internet connections.

Correct Answer: B — Unknown vulnerability exploited before patch

Zero-day vulnerability is a security flaw exploited before developers can create a patch.

Correct Answer: C — 443

HTTPS uses port 443 by default for secure web communication.

Correct Answer: B — Malware that hides its presence and provides unauthorized access

A rootkit is malware designed to hide its presence while providing unauthorized access.

Correct Answer: B — Verifying authenticity and integrity

Digital signatures verify the authenticity and integrity of digital documents.