3 Written questions
2 Multiple choice questions
- Defines procedures for operating the communication links. Frames packets. Detects and corrects packets transmit errors.
- Defines physical means of sending data over network devices. Interfaces between network medium and devices. Defines optical, electrical and mechanical characteristics.
2 True/False questions
Layer 6: Presentation Layer → 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.
Layer 3: Network Layer → Manages user sessions and dialogues. Controls the establishment and termination of logic links between users. Reports upper layer errors.