NETWORK

Network

Refers to two or more computers connected together to share resources.

Resource

Files, folders, documents, internet connection, software applications, cloud-based services, email services, audio and video, printers and printing services.

Network Connection

Means by which devices establish communication with each other, enabling the exchange of data and resources.

Network Classification

undefined

Local Area Network, covers a relatively small geographic area, in close proximity.

undefined

Metropolitan Area Network, covers a larger geographic area than LAN but smaller than WAN; encompasses a city or a large metropolitan region.

undefined

Wide Area Network, covers a broad geographic area, used to connect LANs and MANs across larger distances.

Network Topology

Physical or logical layout or arrangement of devices and connections within a computer network.

Ring Topology

Connected to exactly two other devices, forming a closed loop or ring.

Star Topology

All devices are directly connected to a central hub or switch.

Bus Topology

All devices are connected to a single central cable called the "bus".

Mesh Topology

Every device is connected to every other device.

Tree Topology

Combines characteristics of both star and bus topologies.

Management Methods

Encompass a set of practices and techniques used to effectively govern and control various aspects of IT systems and networks.

Client-server Network

Common architectural model in computer networking; categorized into two main roles:clients and servers.

Advantage of Client-server Network

Facilitate resource sharing, facilitate system backup and improve fault tolerance, enhance security.

Disadvantage of Client-server Network

High cost for servers, need expert to configure the network, introduce a single point of failure to the system, support more users.

Peer-to-peer Network

Decentralized network model in which individual devices communicate and collaborate directly with one another, sharing resources and data without the need for a server.

Advantage of Peer-to-peer Network

Low cost, simple to configure, user has full accessibility of the computer.

Disadvantage of Peer-to-peer Network

May have duplication in resources, difficult to uphold security policy, difficult to handle uneven loading.

Transmission Media

Physical and logical pathways through which data is transmitted from one device to another in a network or communication system.

Guided Media

Physical communication that uses a physical conductor or medium to transmit signals.

Categories of UTP Cables:

undefined

The lowest quality, only good for voice.

undefined

Good for voice and low data rates (up to 7Mbps).

undefined

Deployed in phone lines; supports 10 Mbps for up to 100 meters.

undefined

Typically used in token ring networks; supports 16 Mbps for up to 100 meters.

undefined

Used in Ethernet-based LANs; contains two twisted pairs; supports 100 Mbps for up to 100 meters.

undefined

Used in Ethernet-based LANs; contains four twisted pairs; supports 1 Gbps for 100 meters.

undefined

Used in Ethernet-based LANs and data center networks; contains four tightly wound twisted pairs; supports 1 Gbps for up to 100 meters and 10 Gbps for up to 50 meters.