EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
NEST-208 Configuring DNS Servers
UNIT 2 Study Guide with Correct
Answers
Domain Name System (DNS) - Answer✔✔-A hierarchical system for naming resources on the Internet.
fully qualified domain name (FQDN) - Answer✔✔-The full domain name for a host that specifically
identifies it within the hierarchy of the Domain Name System.
DNS namespace - Answer✔✔-The entire DNS tree that defines the structure of the names used to
identify resources in network domains. It consists of a root name (defined as a period), top-level
domains, second-level domains, optionally one or more subdomains, and hostnames separated by
periods.
root system - Answer✔✔-A DNS server that keeps a database of addresses of other DNS servers
managing top-level domain names.
top-level domain (TLD) servers - Answer✔✔-DNS servers that maintain addresses of other DNS servers
that are authoritative for second-level domains that use the top-level domain. For example, a TLD server
for the com top-level domain contains NS records for authoritative DNS servers for all domains ending in
com.
Hostnames - Answer✔✔-An assigned name that is associated with an IP address, so when a client looks
up the name www.microsoft.com, the DNS server returns an IP address.
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, EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
zone - Answer✔✔-A grouping of DNS information that represents one or more domains and possibly
subdomains.
resource records - Answer✔✔-Data in a DNS database containing information about network resources,
such as hostnames, other DNS servers, and services; each record is identified by a letter code.
DNS client - Answer✔✔-A computer making a DNS query
DNS resolver - Answer✔✔-A DNS client that sends a recursive query to a DNS server
iterative query - Answer✔✔-A type of DNS query to which a DNS server responds with the best
information it has to satisfy the query. The DNS server doesn't query additional DNS servers in an
attempt to resolve the query.
refferal - Answer✔✔-(1) A response to an iterative query in which the address of another name server is
returned to the requester.
(2) A prioritized list of servers used to access files in a namespace.
recursive query - Answer✔✔-A query in which the DNS server processes the query until it responds with
an address that satisfies the query or with an "I don't know" message. The process might require the
DNS server to query several additional DNS servers.
authoritative server - Answer✔✔-A DNS server that holds a complete copy of a zone's resource records
(typically a primary or secondary zone).
forwarder - Answer✔✔-A DNS server to which other DNS servers send requests they can't resolve
themselves.
Page 2/5
FIRST PUBLISH SEPTEMBER 2024
NEST-208 Configuring DNS Servers
UNIT 2 Study Guide with Correct
Answers
Domain Name System (DNS) - Answer✔✔-A hierarchical system for naming resources on the Internet.
fully qualified domain name (FQDN) - Answer✔✔-The full domain name for a host that specifically
identifies it within the hierarchy of the Domain Name System.
DNS namespace - Answer✔✔-The entire DNS tree that defines the structure of the names used to
identify resources in network domains. It consists of a root name (defined as a period), top-level
domains, second-level domains, optionally one or more subdomains, and hostnames separated by
periods.
root system - Answer✔✔-A DNS server that keeps a database of addresses of other DNS servers
managing top-level domain names.
top-level domain (TLD) servers - Answer✔✔-DNS servers that maintain addresses of other DNS servers
that are authoritative for second-level domains that use the top-level domain. For example, a TLD server
for the com top-level domain contains NS records for authoritative DNS servers for all domains ending in
com.
Hostnames - Answer✔✔-An assigned name that is associated with an IP address, so when a client looks
up the name www.microsoft.com, the DNS server returns an IP address.
Page 1/5
, EMILLYCHARLOTTE 2024/2025 ACADEMIC YAER ©2024 EMILLYCHARLOTTE. ALL RIGHTS RESERVED
FIRST PUBLISH SEPTEMBER 2024
zone - Answer✔✔-A grouping of DNS information that represents one or more domains and possibly
subdomains.
resource records - Answer✔✔-Data in a DNS database containing information about network resources,
such as hostnames, other DNS servers, and services; each record is identified by a letter code.
DNS client - Answer✔✔-A computer making a DNS query
DNS resolver - Answer✔✔-A DNS client that sends a recursive query to a DNS server
iterative query - Answer✔✔-A type of DNS query to which a DNS server responds with the best
information it has to satisfy the query. The DNS server doesn't query additional DNS servers in an
attempt to resolve the query.
refferal - Answer✔✔-(1) A response to an iterative query in which the address of another name server is
returned to the requester.
(2) A prioritized list of servers used to access files in a namespace.
recursive query - Answer✔✔-A query in which the DNS server processes the query until it responds with
an address that satisfies the query or with an "I don't know" message. The process might require the
DNS server to query several additional DNS servers.
authoritative server - Answer✔✔-A DNS server that holds a complete copy of a zone's resource records
(typically a primary or secondary zone).
forwarder - Answer✔✔-A DNS server to which other DNS servers send requests they can't resolve
themselves.
Page 2/5
