A Network Technician Is Configuring a Firewall Access List to Secure

question 60

Multiple Choice

A network technician is configuring a firewall access list to secure incoming connections to an email server. The internal address of this email server is 192.168.1.143. The firewall should allow external email servers to send email to the email server. The email server also supports client access via a web browser. Only secure protocols should be used, and only the necessary ports should be open. Which of the following ACL rules should be configured in the firewall's WAN port? (Choose two.)

• A) Permit 192.168.1.143.25
• B) Permit 192.168.1.143.80
• C) Permit 192.168.1.143.110
• D) Permit 192.168.1.143.143
• E) Permit 192.168.1.143.443
• F) Permit 192.168.1.143.587

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Definitions:

Payback Period

The length of time it takes for an investment to generate an amount of cash flow equal to the initial amount invested.

NPV

Net Present Value, a financial metric used to evaluate the profitability of an investment or project, calculated by discounting the expected future cash flows to present day values and subtracting the initial investment cost.

Discounted Payback Period

The time required to recoup the cost of an investment while accounting for the time value of money, typically used in capital budgeting to assess profitability.

After-Tax Cash Inflows

The net cash that a business generates after accounting for all taxes.