Mail to example.com is bouncing and you want to see which mail exchangers the domain publishes. Type the complete command, using the host utility and the option that selects a record type, that queries only the MX records of example.com.

LPIC-1 Exam 102-500, objective 109. Networking fundamentals medium

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Answer

Type the answer.

Accepted answers

Case sensitive — Linux is, and grading LS as ls would teach a falsehood.

Why

host -t TYPE NAME restricts the query to one record type; without -t, host asks for A, AAAA and MX records and prints whatever comes back. Record type names are matched case-insensitively, so MX and mx behave alike. The equivalent with the other common client is `dig example.com MX`, where the type is a bare trailing argument rather than an option.

Where this comes from

Cited
manual page host(1)

Practise this

Reading one question is not practice. The trainer will draw a short set from objective 109 and space the ones you get wrong.

Practise LPIC-1 Exam 102-500

More questions on this objective

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Practise LPIC-1 Exam 102-500