Exam CISA topic 1 question 517 discussion

While firewalls are highly effective in protecting network infrastructure from external threats, it's important to note that they are just one component of a comprehensive cybersecurity strategy. Organizations should implement a layered approach to security that includes other measures such as encryption, endpoint protection, security awareness training, and regular security assessments to defend against evolving cyber threats. Nevertheless, firewalls remain a critical defense mechanism against the risk of attack by hackers.

Firewalls are a critical security control that filters incoming and outgoing traffic based on predefined rules. They can help block malicious traffic, but they can't decrypt and inspect the content of all data packets. C. Encryption

Question is from early 2000's, now the most common attack vectors are more related to social engineering and include malware, viruses, email attachments.

Provided answer seems ok. If hacker is already in then firewalls do nothing.

D. Firewalls Firewalls are the best option among the choices provided to guard against the risk of attack by hackers. A firewall is a network security system that monitors and controls incoming and outgoing network traffic based on predetermined security rules.

d is answer

D FIREWALL