Chapter 1 - Exploring the Network Flashcards
Connect a few computers to each other and the internet.
Small home networks
enables computers within a home office or a remote office to connect to a corporate network or access centralized, shared resources.
Small Office/ Home Office Networks
used by corporations and schools, can have many locations with hundreds or 5ousands of interconncted computers.
Medium to Large Networks
is a network of networks that connects hundreds of millions of computers world wide.
World Wide Networks/Internet
stores corporate and user files in a central location.
File Server
access files from file servers with client software such as Windows Explorer.
File Client
runs web server software.
Web Server
use their browser software to access webpages on the server.
Web Client
runs email server software.
Email Server
use mail client software to access email on the server.
Email Client
are computers with software that enable them to provide information, like email or web pages, to other end devices on the network.
Server(s)
are computers with software installed that enable them to request and display the information obtained from the server.
Client(s)
type of network where computers function as the server and clients.
Peer-to-Peer Network
Three categories of network components.
Devices, Media, Services
are the physical components in network components.
Devices and media
apps used by people everyday (Network Component Category)
Services
connect the individual end devices to the network and can connect multiple individual networks to form an internetwork, provide connectivity and ensure that data flows across the network.
Intermediary Network Devices/Intermediary Device
Three types of media to interconnect devices and provide pathway.
Metallic wires within cables, Glass or plastic fibers(fiber optic cable), Wireless transmission
data is encoded into electrical impulses
Metallic wires within cables
data is encoded as pulses of light
Glass or plastic fibers(fiber optic cable)
data is encoded using wavelength from the electromagnetic spectrum
Wireless transmission
provides the physical connaction to the network at the PC or other end device.
Network Interface Card (NIC, OR LAN adapter)
a connector or outlet on a networking device where the media is connected to an end device or another networking device.
Physical port
Specialized ports on a networking device that connect to individual networks.
Interface
provide a visual map of how the network is connected
Topology Diagram
Two types of topology Diagrams
Physical and logical topology diagrams
identify the physical location of intermediary devices and cable installation
Physical topology Diagrams
identify devices, ports, and addressing scheme.
Logical topology diagrams
provides access to users and end devices in a small geographical area, which is typically an enterprise
, home, or small business network owned and managed by an individual or IT department. High bandwidth to internal end devices and intermediary devices.
Local area network (LAN)
a network infrastructure that provides access to other networks over a wide geographical area. Slower speed lonks between LANs.
Wide Area Network(WAN)
a network infrastructure that spans a physical area larger than LAN but smaller than a WAN.
Metropolitan Area Network(MAN)
same as LAN but interconnects users and end points wirelessly.
Wireless LAN
network infrastructure designed to support file servers and provide data storage,retrieval, and replication.
Storage Area Network(SAN)
worldwide connection of interconnected networks.
Internet
is a term often used to refer to a private connection of LAN’s and WAN’s that belongs to an organization.
Intranet
used to provide secure and safe access to individuals who work for a diffrent organization, but require access to the organizations’s data.
Extranet
SOHO connection options
Cable,DSL,Cellular,Satellite,Dial-up Telephone
internet data signal is carried on the same cable that delivers cable television.
Cable
Provide high bandwidth, always on, conncection to the internet, runs over a telephone line.
Digital Subscriber Lines (DSL)
uses cellphone network to connect
Cellular
areas where normally does not have internet benefit from this connection option
Satellite
low bandwidth, uses phone line and modem.
Dial-up Telephone
Connection options for businesses
Dedicated Leased Line,Ethernet WAN, DSL, Satellite
Reservedcircuits within service provider’s network that connect geographically separated offices for private voice and/or data networking. Expensive
Dedicated Leased Lines
extend LAN access technology to the WAN,benefits of ethernet extended to WAN.
Ethernet WAN
