Question

Which OSI layer operates Hypertext Transfer Protocol (HTTP)?

• A. Data Link
• B. Application
• C. Transfer
• D. Transport

Hint:

Common Application Layer Protocols: HTTP, HTTPS, FTP, SMTP, POP3, IMAP, DNS.

Answer 1

The Correct Option is B

Concept: The OSI model divides network communication into seven layers. HTTP (Hypertext Transfer Protocol) is the protocol used for communication between web browsers and web servers.

Step 1: Recall the OSI layers.
The seven layers are: \[ \text{Application} \rightarrow \text{Presentation} \rightarrow \text{Session} \rightarrow \text{Transport} \rightarrow \text{Network} \rightarrow \text{Data Link} \rightarrow \text{Physical} \]

Step 2: Identify where HTTP operates.
HTTP provides services directly to web applications and browsers. Therefore it belongs to the Application Layer.

Step 3: Select the correct answer.
Hence, \[ \boxed{\text{Application Layer}} \] is the correct answer.