3 Written Questions
2 Multiple Choice Questions
- Defines physical means of sending data over network devices. Interfaces between network medium and devices. Defines optical, electrical and mechanical characteristics.
- Defines interface-to-user processes for communication and data transfer in network. Provides standardized services such as virtual terminal, file and job transfer and operations.
2 True/False Questions
Layer 3: Network Layer → Manages user sessions and dialogues. Controls the establishment and termination of logic links between users. Reports upper layer errors.
Layer 2: Data Link Layer → Defines procedures for operating the communication links. Frames packets. Detects and corrects packets transmit errors.