DNS Records

Question 1

The record that holds the IPV4 address of a domain

Answer 1

A

Question 2

The record that contains the IPv6 address for a domain (as opposed to A records, which list the IPv4 address)

Answer 2

AAAA

Question 3

Forwards one domain or subdomain to another domain, does NOT provide an IP address

Answer 3

CNAME, Canonical Name

Question 4

Directs mail to an email server

Answer 4

MX, mail exchange

Question 5

Lets an admin store text notes in the record. These records are often used for email security.

Answer 5

TXT

Question 6

Stores the name server for a DNS entry.

Answer 6

NS

Question 7

Stores admin information about a domain

Answer 7

SOA, start of authority

Question 8

Specifies a port for specific services

Answer 8

SRV Service record.

Question 9

Provides a domain name in reverse-lookup

Answer 9

PTR, pointer

Question 10

3 DNS TXT records:

Answer 10

SPF (Sender Policy Framework) TXT records list all the servers that are authorized to send email messages from a domain.

DKIM (Domain Keys Identified Mail) records: DKIM works by digitally signing each email using a public-private key pair.

DMARC (Domain Message Authentication, Reporting, and Conformance) records: A DMARC TXT record references the domain’s SPF and DKIM policies.