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Networks
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- 1Networks Q1: What is a computer network? Q2: What are the advantages of a computer network? (5) Q3: What are the disadvantages of a computer network?(4) Q4. What are 3 types of network?Ans 1: Several computers connected together.
Ans 2:
- Users can share files
- Users can share peripherals: printers and connections to other networks like the internet.
- Users can access their files from any computer on the network.
- Servers can control security , software updates and backup of data.
- Communication with other people eg. email and social networking.
Q3:
- Increased security risk to data
- Malware and viruses spread very easily between computers.
- If a server fails, the computers connected to it may not work.
- The computer may run more slowly if there is a lot of data travelling on the network
Ans 4: LAN(Local area Network) , WAN (Wide area Network), PAN (Personal area Network) - 2Q1: What is a local area network? Who owns the hardware for a LAN? How are LANs set up? How are computers in a LAN connected? What is a wide area network? Who leases the infrastructure used between the WANs? How are WANs set up? Example of a WAN. How are computers in a WAN connected? What is a personal area network? What is the most common technology used in a wireless PAN? What are the major limitations with this technology? What are stand-alone computers?Local area network - A network that covers a small geographical area located on a single site.
Uses Ethernet hardware and cabling that is usually owned and managed by the individual or organisation.
Examples include small company, school and home networks.
Wide area network - A network covers a large geographical area connecting LANs together.
Uses third party or external hardware and cabling to connect the LANs they who own and manage it.
WANs are set up with cabining including satellites, telephone lines,and the internet.
Example: Wi-Fi, National lottery terminals
Each LAN is connected with a switch. Each switch is connected to a router which connects the LAN to the WAN.
Personal area network - Any computer network which is used for data transmission amongst very localised devices.
Uses bluetooth connections
Examples: In-car hands free systems, Headphones
The major limitations with bluetooth is that it has a very short range around 10m and low power.
Stand-alone computers - computers that are not connected to a network.
Información
- Descripción
- GCSE (Networks) Computing Fichas sobre Networks, creado por STUDENT Sarah C (Sp1) el 10/11/2022.
- Creado por
- STUDENT Sarah C (Sp1)
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