IGCSE COMPUTER SCIENCE (NEW) 5.
THE INTERNET, DIGITAL CURRENCIES
& CYBER SECURITY EXAM QUESTIONS
AND ANSWERS
Internet Service Provider (ISP) - Answer-A company that provides user with access to
internet. Charge monthly fee. Gives user account and email address.
Internet Protocol (IP) address - Answer-A unique number which identifies a device on
the internet. It is often allocated by an ISP and can change.
Media Access Control (MAC) address - Answer-A unique number allocated to a device
at the time of manufacture. It stays the same.
HTML structure - Answer-HTML document including semantics and structural mark-up
of the document. (<h1> Tags </h1>)
HTML - Answer-Hyper Text Mark-up Language
HTML presentation - Answer-The style of the document - how it will appear on screen.
(CSS Cascading Style Sheets - font colour, size etc.)
Hypertext Transfer Protocol (http) - Answer-It is the set of rules that allows resources
such as web pages, images etc to be requested and sent. It sends data as plain text.
Web browser - Answer-Software application that is used to request resources over the
internet. it can interpret and render the HTML of web pages to display them to the user.
HTTPS - Answer-The secure version of HTTP that adds asymmetric encryption to data
that is sent over the internet.
The internet - Answer-The network of networks. The infrastructure such as servers,
cables, routers etc that allow access to the world wide web. The technology is based on
the US military's ARPANET.
The world wide web - Answer-The content made up of websites and pages, images,
documents etc that can be accessed using the internet. It was invented by Sir Tim
Berners Lee.
Uniform Resource Locator (URL) - Answer-It is a reference (an address) to a resource
on the Internet. It is made up of the protocol//domain name/folder/file.extension
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