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Revision 1.3.2 - Networks
Revision - 1.3.2 Networks
Interactive Revision Lesson
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Computing
Upper Secondary (Key Stage 4)
GCSE
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Revision - 1.3.2 Networks
Interactive Revision Lesson
Slide 1 - Slide
WIRED
WIRELESS
Faster connection
Higher Bandwidth
Wi-Fi
Copper based
Fibre optic
Bluetooth
Ethernet
More Portable
2.4Gz and 5Ghz
Slide 2 - Drag question
Wired
Higher Bandwidth (so its faster)
Uses Ethernet protocol
Copper based and Fibre Optic cables
Slide 3 - Slide
Wireless
Uses radio waves
Bluetooth / wifi
Lower bandwidth
Portable
Frequencies 2.4Ghz and 5Ghz
Slide 4 - Slide
What is Encryption?
Slide 5 - Open question
Encryption
Scrambling the data being sent so that it is not understandable if intercepted.
This is done using a cypher key.
Requires a key to unscramble it
Slide 6 - Slide
IP Address
MAC Address
Logical address
Physical address
Has two versions ipv4 and ipv6
Can change in a LAN
Fixed - will not change
Always stored as a hexadecimal
Media Access Control
Can be Dynamic or fixed
Internet Protocol
For local identification
For Global Identification
Slide 7 - Drag question
What is a Standard?
Slide 8 - Open question
Standard
An agreed set of rules you follow
Computing: Ensures something with work (compatible) or can communicate
Leading us to the term PROTOCOL!
Slide 9 - Slide
Protocols?
Name some...
Slide 10 - Mind map
Protocols
TCP/IP
FTP
HTTP and HTTPS
POP
IMAP
SMTP
Slide 11 - Slide
Layers
Grade 7+ Concept
Will address another time
Slide 12 - Slide
SmartRevise
Remember the expectations
Reflect on your performance
Slide 13 - Slide
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