Cisco Exam 300-720 Topic 16 Question 79 Discussion

Actual exam question for Cisco's 300-720 exam

Question #: 79
Topic #: 16

[All 300-720 Questions]

Which type of DNS record would contain the following line, which references the DKIM public key per RFC 6376?

v=DKIM1; p=76E629F05F709EF665853333EEC3F5ADE69A2362BECE406582670456943283BE

ACNAME

BAAAA

CTXT

DPTR

Show Suggested Answer

Suggested Answer: C

A TXT record is a type of DNS record that contains arbitrary text data that can be used for various purposes such as verification, configuration, or authentication. A TXT record can contain the DKIM public key per RFC 6376, which is used to verify the digital signature of an email message generated by the DKIM private key of the sender domain.

The other options are not valid because:

A) A CNAME record is a type of DNS record that maps an alias name to a canonical name or another alias name. It does not contain any DKIM public key information.

B) An AAAA record is a type of DNS record that maps a hostname to an IPv6 address. It does not contain any DKIM public key information.

D) A PTR record is a type of DNS record that maps an IP address to a hostname, which is the reverse of an A or AAAA record. It does not contain any DKIM public key information.

by Penney at Mar 17, 2024, 11:37 AM

Limited Time Offer

25%

Off

Get Premium 300-720 Questions as Interactive Web-Based Practice Test or PDF

Contribute your Thoughts:

Submit Cancel

Deja

4 days ago

Haha, yeah, no need to overthink this one. It's like they're asking us the definition of a TXT record - easy peasy!

upvoted 0 times

...

Shenika

5 days ago

Yeah, this is a straightforward one. The DKIM public key is a text-based value, so it makes sense to store it in a TXT record. I'm glad they're not trying to trick us with some obscure DNS record type.

upvoted 0 times

...

Jettie

6 days ago

Agreed, the TXT record is the correct answer. The question mentions the DKIM public key, which is specified in RFC 6376, and that's exactly the type of information that goes in a TXT record.

upvoted 0 times

...

Xenia

7 days ago

I'm pretty sure this is a TXT record. The DKIM public key is typically stored in a TXT record, which is used to verify the digital signature of an email message.

upvoted 0 times

...