Computer Networks 1.3.1 (part 2) GCSE
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Internet concepts :
DNS Hosting The cloud Web server + clients
Network topologies
Star Mesh
True or false? The internet is a network of networks
True
True or false? Internet is same as World Wide Web
False
True or false? Internet uses routers to direct messages to the right destinations
True
True or false? Internet is governed by global controlling organisation
False
True or false? Internet uses common set of protocols
True
True or false? Internet supports a wide range of services
True
True or false? World Wide Web makes use of HTTP to describe and deliver web pages
True
True or false? FTP is used for uploading files to servers on the Internet
True
What are protocols
Agreements on rules, technologies and procedures
What do protocols provide
Compatibility between devices
What do network protocols do
Establish how the messages are sent and received, technical features of hardware that is used to transmit the info, the file formats associated with different types of messages etc
What is the Internet
A set of protocols that allow computers to communicate to each other in a network
What is TCP/IP
Set of protocols that allow computers to communicate to each other in a network (internet)
What does TCP/IP stand for
Transmission Control Protocol/ internet protocol
What does TCP/IP provide
Infrastructure that allows digital devices to communicate with each other
What runs on top of the infrastructure that TCP/IP provides
Applications. E.g World Wide Web and email
What does DNS do
The global system that converts domain names and URLs into IP addresses.
What does DNS stand for
Domain name server/system
What is an IP address
The numeric public address every device connected to the Internet has.
What does IP stand for
Internet protocol
What might an IP address look like
151.101.64.81
What is the problem with the DNS system
Not very human friendly