NET140 chp3 set5

Front

A DNS query that demands a resolution or the response that the information can’t be found.

Back

Recursive lookup

Front

A DNS query that does not demand a resolution, which means the server provides the information only if it already has that information available.

Back

Iterative lookup

Front

The element of a DNS database stored on a name server that contains information about TCP/IP host names and their addresses.

Back

Resource records

Front

A record in a DNS zone about that zone and the records within it.

Back

SOA (start of authority) record

Front

A type of DNS data record that maps the IPv4 address of an Internet-connected device to its domain name.

Back

A (address) record

Front

A DNS query that provides an FQDN and requests an IP address.

Back

Forward lookup

Front

A type of DNS data record that maps the IPv6 address of an Internet-connected device to its domain name. Pronounced 'quad-A record'.

Back

AAAA (address) record

Front

A type of DNS data record that holds alternative names for a host.

Back

CNAME (canonical name record)

Front

The true name of a server, such as www.example.com, as opposed to one of many alias names a server might have, such as ns1.example.com.

Back

Canonical name

Front

A type of DNS data record that is used for reverse lookups to provide a host name when the IP address is known.

Back

PTR (pointer) record