Created by a student who achieved 10 grade 9s at GCSE, this mindmap covers everything you need to know from Section 1.3 of the OCR GCSE Computer Science specification, Networks, connections and protocols. Be sure to check out the other mindmaps in this series!
addresses make it possible to deliver data to the r
device receives a packet of data it knows whether
There are two types of network address systems – IP addressi
MAC stands for Media A
Written as 12 hexadecimal d
grouped in pairs.E.g. E0-25-
Every MAC address is com
MAC addresses are static – they can
When you request a web page, each router along the way uses the
address of the next router to send the data packet on the next leg o
Used to uniquely identify a
IP addresses are dynamic – they c
a device to one network it will be g
move to a different network then th
written as 4 blocks of denary numbers between 0
and 255, separated by full stops. E.g. 192.168.0.1
IPv4 stands for
It provides over 4 billion unique addresses but there are over 7 billion people
on the planet and every phone, laptop, smart plug and router needs its own address
To solve this problem, new devices have both an IPv4
AND an IPv6 address so that they can work on any network.
IPv6 addresses are represented using 8 blocks of 4 hexadecimal digits, Due to the shortage of IPv4 addresses
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller harrieta. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.73. You're not tied to anything after your purchase.
