Networking Devices Flashcards
The pool of Avail IP addresses that can be dynamically dispersed to host
DHCP scope
IP address management(IPAM)
Monitors and reports IP address shortages
DHCP lease is
The time that is allotted for a host device to use an IP address.
DHCP Reservation is
Permanent IP address assigned from DHCP server.
DHCP Options include
Default Gateway, DNS
A service that captures a BOOTP or DHCP broadcast and forwards it through the router as a unicast to another subnets DHCP server is a____
DHCP relay agent.
Server that resolves IP to domain names?
DNS
what is a hostname?
Name of a device that has a specific IP
FQDN consists of ____ & a____
Hostname, Domain name
The process of finding the IP address for a given hostname is called
Name resolution
A
Ipv4
AAAA
IPv6
PTR does what
resolves IP address into hostnames used for MAC retrieval
MX record is called
Mail exchanger
_____Allows hosts to have more then one name. Can only be created manually
CNAME(Canonical name)
____ is a resource used to identify computers that host specific services
SRV record
___ is used to delegate a sub domain to a set of name servers
NS record
____ is a method of fighting spam
Sender policy framework (SPF)
What is an email method designed to detect email spoofing?
Domain keys identified mail (DKIM)
Automatic DNS
Dynamic DNS
TxT record with DNS does
Provides the ability to associate arbitrary text with a host or other name
___ is a type of server that handles client-machine requests by fowarding them onto other servers while allowing granular control over the traffic between the local LAN and the Internet
Proxy Server
_____ are used to provide tunneling services to individual users through common subscriber lines
Access VPNs
Intranet VPNs are used to
Connect different sections of a cooperate network
Extranet VPNs are used to
Connect networks that belong to different companies for the purpose of resource sharing.
__ are just a form of VPNs that operate through a web browser
SSL VPNs
What is port forwarding?
Enables permanent translation entry that maps a protocol port on a gateway to an IP address and protocol on a private LAN.
What is a subset of dynamic NAT that maps either one or more unregistered addresses to a single registered address using multiple ports?
PAT
Authortive Name Servers(ANSs) differ from DNS how?
They possess an actual copy of the records for a zone rather then caching a lookup.
