What term describes actions to detect and prevent unauthorized access of a network?

What term describes actions to detect and prevent unauthorized access of a network?

• A. Non-repudiation
• B. Network Security
• C. Availability
• D. Confidentiality

Answer: (B)

Network security covers the policies, controls, and technologies used to protect a network from threats by detecting and blocking unauthorized access. It includes measures like firewalls, intrusion detection systems, access controls, and continuous monitoring to prevent breaches and respond to incidents. Non-repudiation deals with ensuring someone can’t deny a transaction or message, which is about accountability rather than protecting network access. Availability focuses on keeping services up and reachable, not specifically on access control. Confidentiality is about keeping data secret, protecting information from disclosure, but it doesn’t fully address the broader protection of the network itself.

Network security covers the policies, controls, and technologies used to protect a network from threats by detecting and blocking unauthorized access. It includes measures like firewalls, intrusion detection systems, access controls, and continuous monitoring to prevent breaches and respond to incidents. Non-repudiation deals with ensuring someone can’t deny a transaction or message, which is about accountability rather than protecting network access. Availability focuses on keeping services up and reachable, not specifically on access control. Confidentiality is about keeping data secret, protecting information from disclosure, but it doesn’t fully address the broader protection of the network itself.