A Network Administrator Is Tasked to Block All Outbound SSH

question 345

Multiple Choice

A network administrator is tasked to block all outbound SSH connections on the default port from a network subnet of 10.152.8.0/21 on a Linux based firewall. Which of the following rule sets would accomplish this task?

• A) iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 22 -j REJECT
• B) iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 23 -j REJECT
• C) iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 22 -j ACCEPT
• D) iptables -i OUTPUT -d 10.152.8.0/21 -p TCP --dport 23 -j ACCEPT

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Definitions:

Inferior Colliculus

A part of the brainstem involved in auditory processing, responsible for receiving sound signals from the ear.

Neural Plate

The early embryonic structure that develops into the central nervous system, including the brain and spinal cord.

Central Nervous System

The part of the nervous system consisting of the brain and spinal cord, controlling most functions of the body and mind.

Embryonic Structure

An anatomical part or system that is in the early stages of development within an embryo.