Computer Applications · Unit 1 · 15 theory marks · CBSE Class X (2026–27)
Understand how the Internet and World Wide Web connect users, services and information. This unit introduces network roles, common services, protocols, remote access and mobile technologies.
Understand how the Internet and World Wide Web connect users, services and information. This unit introduces network roles, common services, protocols, remote access and mobile technologies.
Trace what happens when you enter a website address: the browser requests a resource, DNS helps locate its host, and HTTP/HTTPS carries the web exchange. Compare a browser, web server, website and webpage in a labeled diagram.
Use your school’s prescribed software version and teacher instructions. Keep personal information out of public practice files.
These questions and answers are original practice written for this guide; they are not copied from past papers.
Differentiate the Internet and the World Wide Web.
The Internet is the global system of interconnected networks. The World Wide Web is a collection of linked pages and resources accessed through the Internet using browsers and web protocols.
Choose a suitable protocol: (a) secure web browsing (b) outgoing email (c) receiving email with POP3.
(a) HTTPS protects web communication with encryption. (b) SMTP sends outgoing email. (c) POP3 retrieves email from a mail server.
What is the difference between uploading and downloading?
Downloading transfers a file from a remote system to the local device. Uploading transfers a local file to a remote system or service.
Aligned to the CBSE 2026–27 syllabus outline. Check the official subject curriculum and your school’s textbook/material for the prescribed scope.