DNS Records - CompTIA Network+ N10-009 - 3.4

Question 1

RR

Answer 1

piece of data stored in DNS that provides info

Question 2

RR Examples

Answer 2

A Records, AAAA records, CNAM, MX Record, TXT Record and more. over 30 types of records

Question 3

SOA

Answer 3

Start of Authority Record. Very top of DNS config file. Provides overview of DNS config.

Question 4

AAAA

Answer 4

Most common record type. Ip address of host.
A record for ipv4
AAAA record for ipv6

Question 5

CNAME

Answer 5

A alias of another name.

Question 6

MX record

Answer 6

Determines the host name of the mail server. Name not IP address.

Question 7

TXT

Answer 7

Human-reable text info
Sender policy framework. Mail server check that infomcing mail really did come from an authorized host
DKIM Digitally sign your outgoing main. Stores public key.

Question 8

NS

Answer 8

Lists the name servers for the domain.

Question 9

PTR

Answer 9

Pointer record. Reverse of A or AAAA record.