Question

A ________ is an attack meant to shut down a machine or network, making it inaccessible to its intended users.

• A. DoS attack
• B. Phishing attack
• C. Man-in-the-Middle attack
• D. Trojan attack

Hint:

A DoS (Denial of Service) attack floods a server to knock it offline. If multiple coordinated computers are used to execute the attack, it is called a DDoS (Distributed Denial of Service) attack.

Answer 1

The Correct Option is A

Step 1: Understanding Cyber Security Attacks:
Malicious cyber attacks are categorized based on their technical objectives, mechanisms, and intended impacts.

Step 2: Evaluating the Options:

• Phishing attack (B): A social engineering attack used to steal sensitive data (like login credentials and credit card numbers) using deceptive emails or websites.
• Man-in-the-Middle attack (C): An interception attack where a hacker secretly eavesdrops on or alters communications between two parties.
• Trojan attack (D): A malicious program disguised as legitimate software to gain unauthorized access to a system.
• DoS (Denial of Service) attack (A): An attack designed to overwhelm a system, server, or network with artificial traffic or request loads. This exhausts system resources (like bandwidth or CPU), causing the target machine to crash or slow down, making it inaccessible to legitimate users.

Step 3: Conclusion:
An attack meant to exhaust resources and shut down a machine or network to deny access is a DoS attack, matching option (A).