Hardware or software designed to guard against unauthorized access to a computer network is known as a(n):

Hacker-proof program
Firewall
Hacker-resistant server
Encryption safe wall

The correct answer is: B. Firewall

A firewall is a network security device that monitors and controls incoming and outgoing network traffic based on predetermined security rules. It is a barrier that protects a computer network from unauthorized access by hackers.

A hacker-proof program is a program that is designed to be immune to hacking attacks. However, no program is 100% hacker-proof, as hackers are constantly finding new ways to exploit vulnerabilities.

A hacker-resistant server is a server that is designed to be resistant to hacking attacks. However, no server is 100% hacker-resistant, as hackers are constantly finding new ways to exploit vulnerabilities.

Encryption safe wall is not a technical term. It is not a type of firewall or security device.

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