You Want to Configure Your Linux Firewall to Block All

question 64

Multiple Choice

You want to configure your Linux firewall to block all network traffic addressed to the Telnet service on the local system. Which of the following commands should you use?

• A)iptables -t filter -A INPUT -s 0/0 -p tcp -dport 23 -j DROP
• B)iptables -t filter -A OUTPUT -s 0/0 -p tcp -dport 23 -j DROP
• C)iptables -t filter -A INPUT -s 0/0 -p tcp -dport 80 -j DROP
• D)iptables -t filter -A INPUT -s 0/0 -p tcp -dport 53 -j ACCEPT

Identify and apply effective proof statements in sales presentations.

Recognize the role of personalization in enhancing sales pitch effectiveness.

Understand the use of countersuggestions in sales and their impact on customer decision-making.

Grasp the significance of customer testimonials, guarantees, and demonstrations as trust-building tools.

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Definitions:

Private Value

The individual valuation of a good or service to a particular consumer or producer, not taking into account external effects or social welfare.

External Benefits

Positive effects of a product or service on individuals or entities who are not directly involved in the transaction or production of the product or service.

External Benefit

A positive effect or advantage that results from a product or service's use, affecting individuals or entities who are not directly involved in the transaction.

Positive Externality

A beneficial effect experienced by a third party or the society as a whole, resulting from an economic transaction.