Match the LIST-I with LIST-II.

	List – I		List – II
A.	Data link layer	I.	Encryption
B.	Network layer	II.	Connection Control
C.	Transport layer	III.	Routing
D.	Presentation layer	IV.	Framing

Choose the correct answer from the options given below:

Correct option is D

The question asks us to match the OSI model layers with their respective functions.
Detailed Solution
A. Data Link Layer → IV. Framing
The Data Link Layer is responsible for reliable node-to-node delivery. One of its major functions is framing, where the stream of bits received from the Physical Layer is divided into manageable units called frames.
B. Network Layer → III. Routing
The Network Layer is responsible for delivering packets from the source network to the destination network. Its major function is routing, i.e., determining the best path through the network.
C. Transport Layer → II. Connection Control
The Transport Layer provides end-to-end communication between processes. It is associated with functions such as connection establishment, connection termination, flow control, error control, and reliable delivery.
D. Presentation Layer → I. Encryption
The Presentation Layer is concerned with the representation and transformation of data. Its functions include translation, encryption/decryption, and compression.
Information Booster
1. Data Link Layer → Framing
2. Network Layer → Routing
3. Transport Layer → End-to-end delivery and connection management
4. Presentation Layer → Translation, encryption/decryption, compression
5. Application Layer → Network services directly accessible to applications