Unit 10 Study

Question 1

What is a resolver?

Answer 1

A DNS client that sends DNS messages to obtain information about the requested domain name space.

Question 2

What is a recursion

Answer 2

The action taken when a DNS server is asked to query on behalf of a DNS resolver.

Question 3

What is an authoritative Server?

Answer 3

A DNS server that responds to query messages with information stored in Resource Records (RRs) for a domain name space stored on the server.

Question 4

What is a recursive resolver?

Answer 4

A DNS server that recursively queries for the information asked in the DNS query.

Question 5

What is an FQDN?

Answer 5

A Fully Qualified Domain Name is the absolute name of a device within the distributed DNS database.

Question 6

What is an RR?

Answer 6

RR - A Resource Record is a format used in DNS messages that is composed of the following fields: NAME, TYPE, CLASS, TTL, RDLENGTH, and RDATA.

Question 7

What is a zone?

Answer 7

Zone - A database that contains information about the domain name space stored on an authoritative server.