Shared Flashcard Set

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Basic Networking
Flash cards for preparation of the CompTIA Network+ exam.
27
Computer Networking
Professional
04/25/2009

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Cards

Term
LAN (local area network)
Definition
A group of connected computers located in a single geographic area, usually a building or office, that share data and services.
Term
WAN (wide area network)
Definition
A data communications network that serves users across a broad geographic area.
Term
MAN (metropolitan area network)
Definition
A network that spans a defined geographic location, such as a city or suburb.
Term
PAN (personal area network)
Definition
A network layout whereby devices work together in close proximity to share information and services, commonly using technologies such as Bluetooth or infrared.
Term
peer-to-peer networking
Definition
A network environment where communication occurs between similarly capable network nodes that act as both clients and servers.
Term
client/server networking
Definition
A networking architecture in which front-end, or client, nodes request and process data stored by the back-end, or server, node.
Term
centralized computing model
Definition
A networking model where one system provides both the data storage and processing power for client systems.
Term
distributed network model
Definition
A networking model where the processing power distributed between the client systems and the server.
Term
VPN (virtual private network)
Definition
A network that uses a public network such as the Internet as a backbone to connect two or more private networks.
Can also be used as a means of establishing secure remote connectivity between a remote system and another network.
Term
VPN client
Definition
The computer that intitates the connection to the VPN server.
Term
VPN server
Definition
A system that authenticates connections from VPN clients.
Term
VPN protocols
Definition
1. Point-to-Point Tunneling Protocol (PPTP)
2. Layer 2 Tunneling Protocol (L2TP)
Term
VLAN (virtual local area network)
Definition
A group of connected computers that act as if they are on their own network segments, even thought they may not be.
Term
topology
Definition
A network's physical or logical layout.
Term
physical topology
Definition
The actual physical layout of the network.
Term
logical topology
Definition
The appearance of the network to the devices that use it, even if the physical layout is different.
Term
bus topology
Definition
A linear LAN architecture in which all devices are connected to a common cable, called a bus or backbone.
Term
ring topology
Definition
A logical network design in which data travels in a circular fashion from one computer to another on the network.
Term
star topology
Definition
A physical network design in which all nodes connect to a centralized device; in most cases a network switch.
Term
mesh topology
Definition
A network design in which each node is connected to every other node. This provides a high-level of redundancy as it provides alternate routes for data to travel should a single route become unavailable.
Term
infrastructure topology
Definition
A managed wireless topology that describes a wireless network composed of an access point connected to a wired LAN.
Term
ad hoc wireless topology
Definition
A wireless network layout where devices communicate directly between themselves without using an access point.
Term
access point
Definition
A transmitter and receiver device used to facilitate communication between a wireless client or WLAN and a wired network.
Term
point-to-point (PtP)
Definition
A wireless configuration where the communication link travels from one node directly to one other node.
Term
point-to-multipoint (PtMP)
Definition
A wireless configuration where signals travel from a central node, such as an access point.
Term
wireless mesh
Definition
A wireless configuration where each node is interconnected to other nodes on the network.
Term
hybrid topology
Definition
A combination of different network designs.
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