3 Written questions
2 Multiple choice questions
- 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.
- 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 4: Transport Layer → Manages end-to-end message delivery in network. Provides reliable and sequential packet delivery through error recovery and flow control mechanisms. Provides connectionless oriented packet delivery.
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.