DNS

Question 1

A record

Answer 1

Address record
IPv4
Host and to ip link

Question 2

AAAA

Answer 2

Address record
IPv6
Hostname to ip link

Question 3

CNAME record

Answer 3

Canonical name
Points domain to another domain or subdomain
(Linking www.domain.com to www1.domain.com and www2.domain.com so they all resolve to same ip and site)

Question 4

MX record

Answer 4

Mail exchange record
-Directs emails to mail server
-Points to another domain not ip
-Indicates how email messages should be routed using SMTP

Question 5

SOA record

Answer 5

Start of Authority
-stores important info about a domain

Question 6

DNS zone transfer

Answer 6

Process of sending dns records data from the primary name server to secondary name server.
-uses tcp to transfer data

Question 7

PTR records

Answer 7

Pointer records
-correlates domain name to ip address
-always stored under .arpa(top-level domain)

Question 8

TXT record

Answer 8

Text records
Place to store machine-readable data

Question 9

SRV record

Answer 9

Service record
-used to specify a host and port for a specific service

Question 10

NS record

Answer 10

Name server record
-indicates which dns name server is the authoritative one for a domain

Question 11

Dns resolver

Answer 11

Aka dns cache located on an individual host

Question 12

Recursive lookup

Answer 12

Dns server will hunt it down and report back to your resolver

Question 13

Interactive lookup

Answer 13

Your dns resolve will continue to query dns servers until it finds the one with the ip for the domain