Networking Fundamentals — Question 59

Which of these is an application layer protocol?

Answer options

• A. TCP
• B. FTP
• C. IP
• D. UDP

Correct answer: B

Explanation

FTP (File Transfer Protocol) is an application layer protocol used for transferring files over a network. TCP (Transmission Control Protocol) and UDP (User Datagram Protocol) are transport layer protocols, while IP (Internet Protocol) operates at the network layer. Therefore, FTP is the only correct answer as it specifically functions at the application layer.