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CIT226 Ch8 NW Serv

CIT226 Chapter 8 - Managing Network Services

QuestionAnswer
anycast Used in IPv6, a packet that goes only to the closest interface and does not attempt to reach the other interfaces with the same address.
Asynchronous Transfer Mode (ATM) A LAN and WAN transport method that uses cells, multiple channels, and switching to send voice, video, and data transmissions on the same network.
background zone loading A DNS server that has a large number of entries in its zones can load those entries as a background process. DNS queries can be going on as the zones are loading, instead of waiting until all zone loading is finished.
DNS dynamic update protocol A protocol that enables information in a DNS server to be automatically updated in coordination with DHCP.
DNS round robin Resource records are created for two or more servers that have different IP addresses but that are associated with the same host name, such as IP addresses 192.168.1.5 and 192.168.1.6 that are associated with the host name researchserver.
Dynamic DNS (DDNS) A form of DNS that enables client computers to update DNS registration information so that this does not have to be done manually. DDNS is often used with DHCP servers to automatically register IP addresses on a DNS server.
Dynamic Host Configuration Protocol for IPv6 (DHCPv6) A version of DHCP that can be used with IPv6 implementation on a network.
forward lookup zone A DNS zone or table that maps computer names to IP addresses.
host address (A) resource record A record in a DNS forward lookup zone that consists of a computer or domain name correlated to an IP version 4 (or 32-bit) address.
IPv6 host address (AAAA) resource record A record in a DNS forward lookup zone that consists of a computer or domain name mapped to an IP version 6 (or 128-bit) address.
loopback address Used for test communications in which a host sends a communication back to itself. In IPv4 this address is 127.0.0.1 and in IPv6 it is 0:0:0:0:0:0:0:1.
Neighbor Discovery (ND) protocol Uses messages and other means to discover the physical addresses, configuration information, and the address prefixes of network hosts.
pointer (PTR) resource record A record in a DNS reverse lookup zone that consists of an IP (version 4 or 6) address correlated to a computer or domain name.
primary DNS server A DNS server that is used as the main server from which to administer a zone, such as updating records in a forward lookup zone for a domain. A primary DNS server is also called the authoritative server for that zone.
Quality of Service (QoS) A measurement specification of the transmission quality, throughput, and reliability of a network system.
reverse lookup zone A DNS server zone or table that maps IP addresses to computer or domain names.
root hint A resource record to enable a DNS server to quickly find an authoritative DNS server in a zone that is not on the DNS server, and is used in particular to find an authoritative DNS server on the Internet.
route aggregation A technique for organizing network routes hierarchically. It also enables routes to be summarized resulting in reduced router advertising of routes.
Scope A range of IP addresses that a DHCP server can lease to clients.
secondary DNS server A DNS server that is a backup to a primary DNS server and therefore is not authoritative.
source routing A routing technique in which the sender of a packet specifies the precise path the packet will take to reach its destination.
stateful autoconfiguration in IPv6 Uses dynamic addressing for an IPv6 host by using DHCPv6.
stateless autoconfiguration in IPv6 When a network host assigns its own IPv6 address without obtaining it from a DHCPv6 server.
stub zone A DNS zone that contains only the SOA record zone, name server (NS) records for authoritative servers, and A records for authoritative servers.
unspecified address IPv6 address which is 0:0:0:0:0:0:0:0 and is often used by IPv6 hosts to indicate their presence on a network until a regular address is assigned.
zone A partition or subtree in a DNS server that contains specific kinds of records in a lookup table, such as a forward lookup zone that contains records in a table for looking up computer and domain names in order to find their associated IP addresses.
Created by: Leisac