Match the different network layers with their respective protocols/standards.

LIST - I (Network Layer)		LIST - II (Protocols/Standards)
A.	Application Layer	I.	TCP, UDP protocols
B.	Transport Layer	II.	API, Sockets
C.	Presentation Layer	III.	FTP, HTTP
D.	Session Layer	IV.	Encryption, decryption

Choose the correct answer from the options given below:

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

Key Points

• Application Layer (A): Protocols/Standards: FTP, HTTP (III):
  • This is the topmost layer, where communication occurs between applications.
  • Protocols like FTP (File Transfer Protocol) and HTTP (Hypertext Transfer Protocol) operate here to enable tasks like file transfers and web browsing.
• Transport Layer (B): Protocols/Standards: TCP, UDP protocols (I):
  • The transport layer is responsible for ensuring that data is transferred reliably between devices.
  • TCP (Transmission Control Protocol) ensures reliable, ordered delivery of data, while UDP (User Datagram Protocol) is used for faster but less reliable transfers.
• Presentation Layer (C):Protocols/Standards: Encryption, decryption (IV):
  • This layer translates data between the application and transport layers, ensuring that data is in a format the receiving application can understand.
  • Encryption and decryption are part of this layer to ensure data security.
• Session Layer (D): Protocols/Standards: API, Sockets (II):
  • The session layer manages the communication session between two devices.
  • It is responsible for establishing, maintaining, and terminating sessions.
  • Protocols like API (Application Programming Interface) and Sockets are used to set up and maintain these sessions.

Additional Information