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CERTIFIED-IN-CYBERSECURITY · Question #515

What is the PRIMARY goal of a firewall on a network?

The correct answer is B. Filter data traffic on the basis of a set of rules. A firewall's primary function is to inspect incoming and outgoing network traffic and allow or block it based on a predefined set of security rules (ACLs - Access Control Lists). It acts as a gatekeeper between trusted and untrusted networks. Option A describes a switch or hub…

Network Security Concepts

Question

What is the PRIMARY goal of a firewall on a network?

Options

  • AConnect multiple devices on a network
  • BFilter data traffic on the basis of a set of rules
  • CProvide information to other networked computers
  • DControl the flow of network traffic

How the community answered

(40 responses)
  • B
    88% (35)
  • C
    8% (3)
  • D
    5% (2)

Explanation

A firewall's primary function is to inspect incoming and outgoing network traffic and allow or block it based on a predefined set of security rules (ACLs - Access Control Lists). It acts as a gatekeeper between trusted and untrusted networks. Option A describes a switch or hub. Option C describes a server. Option D (controlling flow) is close, but the key distinguishing concept is rule-based filtering - firewalls make decisions based on rules, not just flow management.

Topics

#Firewall#Network Security#Traffic Filtering#Security Devices

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