Network Theory Flashcards
Definition of a device
Hardware such as computers, tablets, cell phones, servers, printers, fax machines, switches, and routers.
Definition of physical media
Media that connects devices to a network and transmits data between the devices.
Definition of network adapters
Hardware that translates data between the network and a device.
Definition of network operating systems
Software that controls network traffic and access to common network resources.
Definition of nodes
Any device or computer that can connect to a network and generate, process, or transfer data.
Definition of servers
A network computer or process that shares resources with and responds to requests from computers, devices, and other servers on the network.
Definition of a network segment
A subdivision of a network that links a number of devices or serves as a connection between two nodes.
Definition of a backbone
A very high-speed transmission path that carries the majority of network data. It connects either small networks into a larger structure or server nodes to a network where the majority of client devices are attached.
Definition of a client
A computer or process running on a device that initiates a connection to a server.
Definition of a host
Any device that is connected to a network. It can be a client or a server, or even a device such as a printer, router, or switch.
Definition of a port
Port: The endpoint of a logical connection.
Give all the characteristics of a port
Each server program, or service, is associated with a port.
Enables multiple applications to run over one wire or communication path.
Numbered from 0 to 65,535.
Services use established port numbers to create connections with clients.
Definition of a LAN
LAN: (local area network) A self-contained network that spans a small area, such as a single building, floor, or room.
Definition of a WLAN
WLAN: (wireless local area network) A self-contained network of two or more devices connected by using a wireless connection.
Characteristics of a LAN
Direct connections between all nodes and segments.
Cable or short-range wireless technology.
Ethernet is most commonly implemented.
Token ring, token bus, and FDDI were also used.
Characteristics of a LAN administration
Maintaining devices and cabling.
Maintaining network software.
Performing the installation and deployment, upgrades, and troubleshooting for different applications.
Maintaining a broad range of skills and knowledge about network applications and hardware.
Definition of a WAN
WAN: (wide area network) A network that spans a large area, often across multiple geographical locations.
Definition of GAN
GAN: (global area network): A WAN that includes sites and networks from around the world.
Give all the characteristics of WAN
Connect multiple LANs and other networks using long-range transmission media.
Facilitate communication among users and devices in different locations.
Private or public.
Give all the characteristics of WAN administration
Designing and maintaining the connections between remote segments of a network.
Developing and troubleshooting routing structures.
Working with voice and data systems.
Developing scripts to automate complex network administrative tasks.
Working on security issues.
Helping to implement recovery schemes.
Planning, testing, and implementing hardware and software upgrades.
Give a description of a MAN
Metropolitan area network
Covers an area equivalent to a city or a municipality.
Give a description of CAN
Campus area network
Covers an area equivalent to an academic campus or business park.
Typically owned or used exclusively by an entity.
Give a description of PAN
Personal area network
Connects two to three personal devices with cables.
Smartphones, tablets, and so forth
For personal use
Give a description of WPAN
Wireless personal area network
A variation of a PAN that connects wireless devices that are in close proximity.
No wireless access point; infrared or Bluetooth connection technology.