Network Essentials Flashcards
Network Essentials
Group or system of interconnected people or things.
2 or more connected computers that can share resources.
Local Area Network
LAN
Small (Network) Group of interconnected computers.
2 host computers talk in binary code (1 and 0)
Router
Connects 2 LANs
Common Network Components
-3 Most common?
Workstation
Servers
Host
Servers
-5 different servers
Mail Server Web Server Application Server Proxy Server File Server
Mail Server
Networks “post office”. Handles email functions
Web Server
Manages Web activities by using hypertext transfer protocol (HTTP) for storing web content and accessing web pages
Application Server
Manages network applications
Proxy Server
Handles tasks in place of other machines on network. Like internet connection
File Server
Stores and dispenses files
Host
Any network device with an IP Address
Wide Area Network
WAN
Bigger than LAN
Usually needs router port(s)
Larger geographic are
Internetwork
Type of LAN and/or WAN that connects a bunch of networks or intranets.
Centralized
Type of WAN
Composed of a main centrally located computer or location that remote computers and devices can connect to.
Multiprotocol Label Switching layout
MPLS
Switching mechanism that imposes label (numbers) to data and then uses those labels to forward data when it arrives at the MPLS network
Peer to Peer Network
When it comes to authority, they are all equal
Client Server Network
Single Server uses a network operating system for managing the whole network
Physical Network topologies
-7
Star Ring Mesh Point to point Point to multipoint Hybrid Bus
Ring
Each computer is directly connected in the same network.
Adding another network is a drawback. The ring would break which brings Network down
Star
Gives more scalability
If the hub fails, all computers go down.
If a computer fails, only that computer goes down
Mesh
Path to every machine to ever other in the network.
Has most physical connections per device
Point to point
Direct connection between 2 routers or switches, giving one communication path
Point to multipoint
Consist of a succession of connections between an interface on one router and multiple destination routers
Drawback is the hub is the single point of failure
Hybrid
Combination of 2 or more types of physical or logical network topologies working together within the same network
Bus
Daisy chain
2 distinct and terminated ends. All computers connecting to unbroken cable
Network backbone
It divides network into different parts called backbones.
Common connecting point for all segments
