Flashcards
ICT
Flashcards do conjunto (18)
- 1What is a LANLocal Area Network
- 2Define LANA network of a small geographical area (e.g. house) that connects all of the computers in a household
- 3Define a networkTwo or more computers connected together to share data
However, they are never 100% secure (even cable) - 4What are the advantages of a LAN• Sharing the internet connection
• Sharing files, including backing up
• Sharing peripherals i.e. printers (so you don’t have to buy multiple ones)
• Internet telephone services - 5Define a RouterA router allows you to connect to the internet.
- 6What does the router do?It gives them an internal IP address so it ‘knows’ where to send the data
- 7What does IP address mean?Internet protocol address
- 8Advantages of a cable connectionBandwidth: Fast (1 gigabit per second)
Security: Good - a user will have to plug in to use it
Should not experience interference - 9Disadvantages of a cable connectionSetting up is very complex cables have to run through the house
Installation is expensive
Mobility: Can not connect without a socket. - 10Advantages of a wireless connectionAll you need is a wireless router
It is much cheaper to set up.
Mobility: you can access it anywhere in the house. - 11Disadvantages of a wireless connectionSlower: 54 megabits per second
Security: Poor anyone in range can use it (unless a password is used)
Interference: can be affected by walls/electronic devices connected - 12What is encryptionScrambles data so that only computers with the right key can read it.
- 13Types of EncryptionWEP (most common)
WPA-PSK (more secure)
WPA2 (more secure) - 14What does MAC stand forMedia access control
- 15What does MAC do?It is given to each device on your network.
You can specify which addresses can connect to your network
It is a unique number - 16What is a NICNetwork interference card
- 17How do you increase network security?Changing the default admin password
Setting up a form of encryption
Setting up media access control
address filtering
Hiding the router by stopping the router broadcasting its SSID (Network Name)
Turning off the router when not in use
Reducing transmitter power - 18What does SSID stand for?Service Set Identifier (Network name)
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- GCSE IT FlashCards sobre ICT, criado por Saskia Lambot em 06-11-2017.
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- Saskia Lambot
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