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3 Written questions

2 Multiple choice questions

  1. Defines physical means of sending data over network devices. Interfaces between network medium and devices. Defines optical, electrical and mechanical characteristics.
  2. Manages user sessions and dialogues. Controls the establishment and termination of logic links between users. Reports upper layer errors.

2 True/False questions

  1. Layer 7: Application LayerDefines 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. Layer 4: Transport LayerDetermines 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.