P1 - Communication and the Internet Flashcards
What do humans access information through?
Domain names
What do all web browsers interact through?
Internet Protocol addresses (IP)
What does the domain name system do?
Translates domain names to IP addresses so browers can load internet resources
What does each device that is connected to the internet have?
A unique IP address
The URL/website is input by the user, and the website is outputted as an _____ address
IP(v4)
What are network speeds measured in?
mbps
How many ways are there to set up a LAN?
three! (bus, star and ring)
What is specific about a bus network?
Everything (workstation, servers, printers..) are joined to one cable
What stops signals from reflecting back down the bus?
A terminator at the end of a cable
What is specific about a ring network?
Each device is connected in a ring
so each is connected to two other devices
How does a ring network work?
Each data packet on the network travels in one direction. Each device receives each packet in turn until the destination receives it.
What is specific about a star network?
Each device on the network has its own cable which directly connects to a swtich or hub.
Which method is the most popular for setting up your LAN?
Star network
What do computers need to make a wireless connection?
a wireless NIC
What does a wireless router do?
A wireless router is connected to a physical network (ethernet) and uses radio signals
