Which of the following security devices can be replicated on a Linux based computer using IP tables to inspect and properly handle network based traffic?

The correct answer is C. Firewall. IP tables is a Linux kernel-level packet filtering framework that inspects incoming and outgoing network packets and applies rules to allow, block, or modify traffic based on criteria such as IP address, port, and protocol. This is exactly what a firewall does. A sniffer (A)…

Security architecture

Question

Options

ASniffer
BRouter
CFirewall
DSwitch

How the community answered

(27 responses)

B
4% (1)
C
89% (24)
D
7% (2)

Explanation

IP tables is a Linux kernel-level packet filtering framework that inspects incoming and outgoing network packets and applies rules to allow, block, or modify traffic based on criteria such as IP address, port, and protocol. This is exactly what a firewall does. A sniffer (A) only captures and analyzes traffic passively without blocking it. A router (B) forwards packets between networks but does not filter for security purposes by default. A switch (D) operates at Layer 2 (MAC addresses) and manages local network traffic, which IP tables does not replicate.

Topics

#firewall#iptables#Linux security#packet filtering

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