Computing Network Topologies OCR 1.5

  • Created by: MaxR1
  • Created on: 30-04-18 21:14
Which topology involves each computer connected to one central point, such as a file server or switch?
Star Topology
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Which topology involves each node in a network interconnected with one another?
Mesh Topology
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*insert mesh diagram*
Mesh Topology
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What are the advantages of star topologies?
.
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What are the disadvantages of star topologies?
.
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What are the advantages of mesh topologies?
.
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What are the disadvantages of mesh topologies?
.
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*insert star diagram*
Star Topology
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Define Topology
A network topology is the pattern in which nodes (i.e., computers, printers, routers or other devices) are connected to a local area network (LAN) or other network via links.
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Define Bandwidth
The amount of data that can pass through the transmission medium/sec ("bit-rate")
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How many channels are there in a 2.4Ghz network and how far apart are they?
14 channels - 5Mhz apart
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What are the 2 GHz settings of most home wifi setups
5GHz and 2.4GHz
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What are integrated into WiFi networks to alleviate interference?
Different channels
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Define Ethernet
A set of technical standards for connecting computers
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What 2 materials are ethernet cables often made of?
Copper and Carbon Fiber
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What are the advantages of a wired network?
.
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What are the disadvantages of a wired network?
.
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What are the advantages of a wireless network?
.
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What are the disadvantages of a wireless network?
.
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WiFi waves are an example of what?
Microwaves
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What does TCP/IP do?
Organises how data packets are communicated and makes sure packets have correct information
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What is HTTP?
A set of rules that are followed by a web server/browser when requesting/supplying information.
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What does HTTPS do?
Ensures that web communications are encrypted.
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What is FTP?
The set of rules that are followed when files are transferred.
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What is POP?
A protocol used by clients to retrieve emails from a mail server
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What is IMAP?
A protocol that means messages DON"T have to be downloaded. Messages can be read and stored on a message server.
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What is STMP?
A protocol for sending emails from client to server and vice versa until it reaches its destination
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What are the benefits of using Network Layers?
.
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What are the 4 network layers?
Application, Transport, Internet and Data Link
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Define Packet
A small packet of data that is transferred from one computer to another
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What is Packet Switching?
When certain areas of a network are too busy to carry a packet, they are switched to emptier circuits
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Why is Packet Switching more efficient?
No dedicated line between devices is needed.
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Other cards in this set

Card 2

Front

Which topology involves each node in a network interconnected with one another?

Back

Mesh Topology

Card 3

Front

*insert mesh diagram*

Back

Preview of the front of card 3

Card 4

Front

What are the advantages of star topologies?

Back

Preview of the front of card 4

Card 5

Front

What are the disadvantages of star topologies?

Back

Preview of the front of card 5
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