CERTIFIED-IN-CYBERSECURITY · Question #302
CERTIFIED-IN-CYBERSECURITY Question #302: Real Exam Question with Answer & Explanation
The correct answer is D: Firewall. A firewall is a network security device that filters incoming and outgoing network traffic based on predefined rules and is designed to prevent unauthorized access to or from a protected network (see ISC2 Study Guide, Module 3, under Network Design). Firewalls can be configured t
Question
What network security device filters incoming and outgoing network traffic based on predefined rules and is designed to prevent unauthorized access to or from a protected network?
Options
- AVirtual Private Network (VPN) Gateway
- BProxy Server
- CIntrusion Prevention System (IPS)
- DFirewall
Explanation
A firewall is a network security device that filters incoming and outgoing network traffic based on predefined rules and is designed to prevent unauthorized access to or from a protected network (see ISC2 Study Guide, Module 3, under Network Design). Firewalls can be configured to allow or deny traffic based on the source and destination IP addresses, port numbers, and protocols. An Intrusion Prevention System (IPS) is a network security device that monitors and detects malicious activity and blocks it before it can reach the protected network. A Virtual Private Network (VPN) Gateway is a device that provides secure access to a private network over the Internet. A Proxy Server is a device that acts as an intermediary between a client and a server, forwarding client requests to the server and responses from the server back to the client.
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