3 Written questions
2 Multiple choice questions
- Defines procedures for operating the communication links. Frames packets. Detects and corrects packets transmit errors.
- Determines how data are transferred between network devices. Routes packets according to unique network device addresses. Provides flow and congestion control to prevent network resource depletion.
2 True/False questions
Layer 6: Presentation Layer → Masks the differences of data formats between dissimilar systems. Specifies architecture-independent data transfer format. Encodes and decodes data; encrypts and decrypts data; compresses and decompresses data.
Layer 5: Session Layer → Defines physical means of sending data over network devices. Interfaces between network medium and devices. Defines optical, electrical and mechanical characteristics.