An Email Administrator Is Tasked to Setup a Linux Mail

question 429

Multiple Choice

An email administrator is tasked to setup a Linux mail server. One of the requirements is to close all ports except SSH, HTTPS, SMTP, POP3, and IMAP4. Which of the following commands should be used to see which ports are currently open on the mail server? (Select TWO) .

• A) lsof
• B) netstat
• C) ipconfig
• D) traceroute
• E) ping
• F) dig

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Definitions:

Centralized Database

A database located, stored, and maintained in a single location, accessible by users from different locations through a network.

Journalistic Approach

Verifying the completeness of a message by making sure it answers the who, what, when, where, why, and how questions.

Thoroughness

The extent to which a task or activity is carried out with attention to detail and completeness.

Evaluating Information

The process of critically assessing the relevance, reliability, and quality of information sources.