Which one of the following is usually not a benefit resulting from the use of firewalls?

The correct answer is B. prevents the spread of viruses. Preventing the spread of viruses is NOT typically a benefit of firewalls. Firewalls operate primarily at the network layer, filtering traffic based on IP addresses, ports, and protocols - they cannot inspect the content of encrypted or application-layer payloads for malware…

Submitted by rania.sa· Apr 18, 2026Network and Communications Security

Question

Options

Areduces the risks of external threats from malicious hackers.
Bprevents the spread of viruses.
Creduces the threat level on internal system.
Dallows centralized management and control of services.

How the community answered

(50 responses)

A
2% (1)
B
94% (47)
D
4% (2)

Explanation

Preventing the spread of viruses is NOT typically a benefit of firewalls. Firewalls operate primarily at the network layer, filtering traffic based on IP addresses, ports, and protocols - they cannot inspect the content of encrypted or application-layer payloads for malware. Virus prevention is the role of antivirus/anti-malware software. Firewalls do reduce risks from external threats, reduce the attack surface on internal systems, and allow centralized control of network services. Conflating firewalls with antivirus capabilities is a common misconception that this question specifically targets.

Topics

#Firewalls#Network Security#Security Controls#Threat Prevention

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