Convert 1010 into denary
Convert 1010 into hexadecimal
Binary shift 00000101 one place to the left
Convert this into binary using 2s complement
11111101
What is the term for a network of networks that allows multiple devices to communicate with each other all over the world?
Name two features of a web browser
List two concerns that people have over using cookies
What is the main purpose of an IP address?
What does DNS stand for?
Identify one mistake in this IP address: 192-168.300.10.
How do we know if a web page is secure?
What is packet switching?
Why is packet structure important for modern networking?
Put the statements into the correct parts of the packet
error checking
Destination IP address
The data being sent
packet sequence number
Source IP address
Header
Payload
Trailer
We type in www.youtube.com. In order to send data to Youtube, we need to travel through routers. A router will pass this data to other routers on this journey. What is the process called when data travels from 1 router to another?
Put this journey into the correct order
The browser will then send packets to Youtube using the new IP address through its local router
The Youtube server will put all the packets in order of the sequence number
The browser will render it turning it from HTML to a beautiful webpage
The router will check a routing table to find the best route
The Youtube server will then send the browser, their web page
If the IP address does not exist, it will send a request to a local DNS
The Youtube server will wait for all the packets to arrive
Uh oh, a packet is missing so the browser has to resend that missing packet
The DNS will check a table for the IP address of that URL (Youtube). When it is found, it will send it back to the browser
User types in a URL
The browser checks its cache for the IP address of that URL
The router will send the data to the next router on the journey, and so on, until it arrives at Youtube server