Match List – I with List – II.

List – I (Internet Protocol)	List – II (Internet Activity)
A. HTTP	I. Sends email through the Internet
B. SSL	II. Encrypts data for online transmission
C. SMTP	III. Sends TCP/IP packets to web server
D. FTP	IV. Transfers files over the Internet

Choose the correct answer from the options given below:

The correct answer is A-III, B-II, C-I, D-IV.

Let us understand each Internet Protocol and match it with its corresponding Internet Activity by analyzing them one by one.

A. HTTP → III. Sends TCP/IP packets to web server
HTTP stands for HyperText Transfer Protocol. It is the foundational protocol used for communication on the World Wide Web. When you type a URL into your browser and hit Enter, your browser uses HTTP to send TCP/IP packets (requests) to a web server, asking it to deliver the requested webpage. The web server then responds with the content. So, HTTP is directly responsible for sending TCP/IP packets to web servers — matching it perfectly with III.

B. SSL → II. Encrypts data for online transmission
SSL stands for Secure Sockets Layer. It is a security protocol designed to establish an encrypted link between a client (like your browser) and a server. SSL ensures that all data passed between the two remains private and integral. This is the technology behind "HTTPS" — the padlock you see in your browser's address bar. Its primary purpose is to encrypt data for secure online transmission — matching it with II.

C. SMTP → I. Sends email through the Internet
SMTP stands for Simple Mail Transfer Protocol. It is the standard protocol used for sending emails across the Internet. When you click "Send" in your email client (like Gmail or Outlook), SMTP is the protocol that handles the delivery of your message from the sender's mail server to the recipient's mail server. It is specifically designed for outgoing email transmission — matching it with I.

D. FTP → IV. Transfers files over the Internet
FTP stands for File Transfer Protocol. As the name clearly suggests, it is a standard network protocol used to transfer files from one host (computer) to another over a TCP-based network, such as the Internet. It allows users to upload files to a server or download files from a server. This matches perfectly with IV.

Summary of the correct matches:

Hence, the correct mapping is A-III, B-II, C-I, D-IV.