An Administrator Is Setting Up a New Mail Server on the Network

question 598

Multiple Choice

An administrator is setting up a new mail server on the network and wants to open necessary ports to allow POP3 protocol for mail delivery. Which of the following ports should be opened in the internal and external firewalls?

• A) 101
• B) 110
• C) 123
• D) 161

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Definitions:

Z-test

An analysis technique that evaluates the difference in means between two populations with known variances and substantial sample sizes.

Nominal Data

Data categorized without a natural order or ranking, distinguished merely by name.

Binomial Experiment

A statistical experiment that adheres to the following criteria: fixed number of trials, only two possible outcomes, constant probability of success, and independence between trials.

Chi-squared Distribution

A statistical distribution used extensively in hypothesis testing, particularly in tests of independence and goodness-of-fit.