Computer Network Connections/Protocols Flashcards
What is a network
A group or system of interconnected people or things
What is a protocol
An agreement or a set of rules for a computer network
What is a computer
An electronic device for storing and processing data in binary form
What are two types of networks that we use
LAN
WAN
What is a WAN network
Wide Area Network. A network when computers have communication using resources, provided by a third party carrier
How does a WAN need to perform
They would acquire cables, telephone lines, satellites and radio waves
What is the largest WAN in the world
The Internet
What are the advantages of WAN
They cover large geographical areas
Increased privacy
Allows users to share resources and application software
Assists global markets and businesses
IT infrastructure is centralized
Benefits the global market and business
What are the disadvantages of WAN
Spans more congestion
More slower
Poor connectivity
Poor maintenance
Problem with resolving
Instalment fees
Huge demands for security options
What is a LAN
Local Area Network. A network that covers a small geographical location on a small site
What are the advantages of LAN
Spans less congestion
More faster than WAN
Works together from different computers via instant messaging
Can access files from any computer
Works collaboratively on the same file
Can share files
What are the disadvantages of LAN
High setup costs
Local area networking added difficulty to security operation
Control on the customer’s part is lost
Security system should be executed if its essential to protect private data
Weak data protection
High maintenance degree
Maximum damage
What is congestion
Clog or block of something
What are two types of mesh LAN networks
Star Topology
Mesh Topology
What is a network topology
The physical and logical arrangement of nodes and connections in a network
What is a mesh/partial mesh network topology
A network setup where each device is interconnected with one another and can rely data easily
What are the benefits of a mesh network topology
Good resilience, np point in failure
Efficient expansion
Efficient modification
No network disruption
If one computer switches off, the system is unaffected, keeps working like normal
No central switch
What are the drawbacks of a mesh network topology
Difficult administration
Difficult maintenance
High installation costs
If one node is added, more nodes will have to keep getting added
Whats the difference between a regular mesh network and a partial mesh network
Partial Mesh Networks have less nodes
They tend to be in conjunction with star mesh networks for bigger communications
What is a node
A device that can send, receive, read data that is connected to a network
What is a star mesh network topology
A network where all computers, devices and nodes are all connected to a central switch
What are the benefits of a star mesh network topology
If one device is turned off, the network is unaffected, keeps continuing like normal
Fast data transfer to hub as each wire isn’t shared with other computers
What are the drawbacks of a star mesh network topology
If the central switch fails, the whole network is turned off
Additional hardware is required such as a central switch and network cables
What is a wireless mesh network
A communication network made up of radio nodes organized in a mesh topology.