DNS

Question 1

SOA

Answer 1

Start of Authority

Question 2

Record type that defines the primary name server in charge of the zone.

Answer 2

SOA

Question 3

NS record

Answer 3

“Name Server” record

Question 4

This record type points to the server that holds the records(zone) for a part of the DNS tree.

Answer 4

NS

Question 5

A record

Answer 5

“A host address”

Question 6

The records in the zone that hold the IPv4 addresses for hosts.

Answer 6

A records

Question 7

Record that holds the IPv6 addresses for hosts. Signifies 128 bits being 4 times as long.

Answer 7

AAAA “quad A” records

Question 8

An alias that holds an FQDN, not an IP address.
(“Mike.totalhome” is an alias for mikesdesktop.totalhome)
(Mikesdesktop.totalhome has an address 192.168.4.96)

Answer 8

CNAME

Question 9

CNAME

Answer 9

Canonical Name

Question 10

PTR record

Answer 10

“Domain Name Pointer” record

Question 11

This record is only found in reverse lookup zones; they use an IP address for their names and hold the FQDN of a host at their address. Can only point a single IP address to a single FQDN.

Answer 11

PTR

Question 12

MX record

Answer 12

Mail Exchange record

Question 13

Record used exclusively by SMTP servers to determine where to send mail. They hold the FQDN of the server that handles mail for the domain.

Answer 13

MX record

Question 14

SRV record

Answer 14

Service record

Question 15

Generic DNS record that supports any type of server.

Answer 15

SRV record

Question 16

TXT record

Answer 16

Text record

Question 17

Record type that’s a free form type of record that can be used for anything. Allows any text to be added to a zone.

Answer 17

TXT

Question 18

Command that enables you to clear the DNS cache

Answer 18

Ipconfig /flushdns

Question 19

Command that lets you query the zone of a DNS server

Answer 19

Nslookup