220-802 · Question #740
Which of the following BEST prevents attackers from accessing network equipment?
The correct answer is A. Firewall. A firewall is the primary network security device that inspects and filters incoming and outgoing traffic, blocking unauthorized access attempts to network equipment.
Question
Which of the following BEST prevents attackers from accessing network equipment?
Options
- AFirewall
- BPrivacy filter
- CAntivirus software
- DServer
How the community answered
(37 responses)- A92% (34)
- C5% (2)
- D3% (1)
Why each option
A firewall is the primary network security device that inspects and filters incoming and outgoing traffic, blocking unauthorized access attempts to network equipment.
A firewall enforces access control policies by inspecting network packets and allowing or denying traffic based on defined rules such as IP address, port, and protocol. It acts as a barrier between trusted internal networks and untrusted external networks, directly preventing attackers from reaching and accessing network equipment like routers and switches.
A privacy filter is a physical screen overlay that prevents visual shoulder-surfing; it does not protect against network-based attacks.
Antivirus software detects and removes malicious files and code on endpoints but does not filter network traffic or block unauthorized access to network infrastructure.
A server is a computing device that provides services to clients; it is not a security control that prevents attackers from accessing network equipment.
Concept tested: Firewall function in network security
Source: https://learn.microsoft.com/en-us/windows/security/operating-system-security/network-security/windows-firewall/windows-firewall-overview
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