Internet, Web Technologies and Digital Communication
What this domain tests
This domain covers how the internet works, how web pages are addressed and built, and how people communicate professionally online - including email, browsers, search and basic cyber safety.
Core concepts
- The internet is the global network of networks; the World Wide Web is a service on it made of linked pages.
- A URL identifies a resource. Its parts include protocol (https), host/domain (example.org), path (/student/login.html) and optional query (?lang=en).
- DNS translates a domain name into an IP address. An ISP provides access; a browser requests pages from a web server using HTTP/HTTPS.
- HTTPS encrypts traffic; HTTP does not. Check for the padlock and a valid certificate before entering credentials.
- Email fields: To (primary recipient), Cc (visible copy) and Bcc (hidden copy). Reply goes to the sender; Reply All includes the other recipients.
- HTML uses tags such as , , , <body>, <h1>, <p>, <a href> and <img>. Static pages are fixed files; dynamic pages are generated by a server.</li> </ul> <h3>Worked example</h3> <p>For https://www.example.org/student/login.html?lang=en: protocol = https; host = www.example.org; path = /student/login.html; query string = lang=en. The domain is example.org; “www” is a subdomain, not the whole domain.</p> <h3>Traps that cost marks</h3> <p>Do not call the web the internet. Bcc is for privacy; Cc is not hidden. A domain name is not an IP address. “www” is optional. Never share passwords or OTPs, and check the sender address before opening attachments.</p>