A Linux Administrator Needs to Configure a New Firewall Without

question 248

Multiple Choice

A Linux administrator needs to configure a new firewall without an existing ACL to allow incoming web traffic. The firewall must log the allowed network traffic. Which of the following command sequences would accomplish this task when they are executed in order?

• A) iptables -A INPUT -p tcp --dport 80 -J LOG iptables -A INPUT -p tcp --dport 443 -J LOG iptables -I INPUT -p tcp --dport 80 -J ACCEPT iptables -I INPUT -p tcp --dport 443 -J ACCEPT
• B) iptables -I INPUT -m multiport -p tcp --dports 80,443 -J LOG iptables -I INPUT -m multiport -p tcp --dports 80,443 -J ACCEPT
• C) iptables -A INPUT -m multiport -p tcp --dports 80,443 -J LOG iptables -A INPUT -m multiport -p tcp --dports 80,443 -J ACCEPT
• D) iptables -A INPUT -p tcp --dport 80 -J ACCEPT iptables -A INPUT -p tcp --dport 443 -J ACCEPT

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Definitions:

Losses

The amount by which costs exceed income, resulting in a negative financial outcome for businesses or individuals.

Resource Allocation

The process of distributing available resources among various projects or business units.

Dental Services

Professional care related to the maintenance and treatment of oral health delivered by licensed practitioners.

Economic Profit

The dissimilarity between total sales revenue and comprehensive spending, including both clear-cut and notional costs.