https://padlet.com/jbertrand1/mub1r0bsogt6qqnn en-us 2022-09-08 00:32:06 UTC 2022-09-08 01:49:55 UTC hello@padlet.com jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287319169 Local Area Network (LAN) - is a network that is confined to a relatively small area
- most common in school - connected computers are considered servers (workstations)

Workstations - typically have human user interacting - traditionally considered a desktop but has evolved to include items such as ipads and tablets - workstations are connected by cable to the network

Server - more powerful than a workstation, guided by user needs, cost can be an issue

Wide Area Network - connect networks in larger areas, allows communication across the world, is complicated

Advantages of Installing a School Network - centralized management, provides both a place to store the information, easily connected, multiple services, internet access, flexible access, allows for collaboration

Disadvantages of Installing a School Network - expensive, servers fail, cables may break


]]> 2022-09-08 00:57:55 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287319169 jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287323762 Protocol is a set of rules that governs the communications between computers on a network.

Different types of networks protocols are required to ensure computer can communicate with another computer.]]> 2022-09-08 01:02:06 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287323762 jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287328236 The most common protocol used at the physical layer is Ethernet.

An Ethernet network specifies the type of cables that can be used, the optimal topology, and the maximum length of cables.

Heavy coaxial cabling is expensive.

Fast Ethernet protocol supports transmission up to 100 Mbps.

Gigabit Ethernet standard is protocol that has a transmission speed of 1 Gbps.]]> 2022-09-08 01:06:07 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287328236 jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287336497 Includes all computers, peripherals, interface cards and other equipment needed to perform data-processing and communications within the network.

Network servers part of every local area network.

Very fast computers with a large amount of RAM and storage space.

Network server may be responding to requests from many network users simultaneously.]]> 2022-09-08 01:12:36 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287336497 jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287349080 Workstations - computers that humans use

Laptops/Mobile Devices - have modest internal storage, but enough power to be on-the-go

Network Interface Cards - provides the physical connection between the network and the workstation

Ethernet Cards - usually included with a computer but can be purchased

Wireless Adapters - found in most portable devices

Switches - provides a central connection point

Repeaters - boost the signal, repeater electrically amplifies the signal it receives and rebroadcasts

Bridges - device that allows you to segment a large network

Routers - are the traffic directors of the global internet

Firewalls - uses rules to filter traffic into and out of the private network]]> 2022-09-08 01:21:55 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287349080 jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287372480 The medium which information usually move from one network to another.

Type of cable chosen depends on topology, protocol, and size.

Twisted pair cabling comes in shielded and unshielded.

Unshielded Twisted Pair Connector - plastic, a slot allows the RJ-45 to be inserted only one way

Shielded Twisted Pair Cable - UTP cable is the least expensive cable

Coaxial Cable - difficult to install, highly resistant to signal interference

Fiber Optic Cable - consists of a center glass core surrounded by several layers of protective materials

Wireless LANS - use high frequency radio signals, infrared light beams, or lasers to communicate - information is relayed between transceivers

Wireless Security - use radio waves to communicate with each other, unencrypted information transmitted can be monitored by a third-party]]> 2022-09-08 01:39:37 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287372480 jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287377488 Main types:
-Linear bus -- main run of cable with a terminator at each end
-Star -- each node connected directly to a central network hub
-Tree (Expanded Star) -- combines characteristics of the linear bus and star
-Consideration When Choosing a Topology -- tree setup in a 5-4-3 rule]]> 2022-09-08 01:43:48 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287377488 jbertrand1 https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287384507 Network operating system (NOS) coordinate the activities of multiple computers across a network.

Two major types:

Peer-to-peer -- NOS allows users to share resources, all computers are considered equal
ADVANTAGES-less initial expense and setup
DISADVANTAGES-decentralized, security issues

Client/Server -- file servers become the heart of the system
ADVANTAGES-centralized, scalability, flexibility, interoperability, accessibility
DISADVANTAGES-expense, maintenance, dependence]]> 2022-09-08 01:49:55 UTC https://padlet.com/jbertrand1/mub1r0bsogt6qqnn/wish/2287384507