net 2

Question 1

A

Answer 1

An address record (that is, A record) maps a hostname to an IPv4 address.

Question 2

AAAA

Answer 2

maps a hostname to an IPv6 address.

Question 3

CNAME

Answer 3

is an alias of an existing record, thus

allowing multiple DNS records to map to the same IP address.

Question 4

MX

Answer 4

maps a domain name to an email

Question 5

NS

Answer 5

Delegates a DNS zone to use the given authoritative name servers.

Question 6

PTR

Answer 6

determine what domain name is associated with a known IP address.

Question 7

SOA

Answer 7

A start of authority record (that is, SOA record) provides authoritative information about a
DNS zone,

Question 8

SRV

Answer 8

A generalized service location record. Used for newer protocols

Question 9

TXT

Answer 9

this record carries machine-readable data,