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Scenario: You are a networking and communications consultant working for HoustonComm Services, Inc, further referred to as HCS.
Scenario: You are a networking and communications consultant working for HoustonComm Services, Inc, further referred to as HCS. HCS is a company providing technology consulting services to start-ups and established large companies. Recently HCS has been approached by Mr. Smith, the Chief Operations Officer of Procter & Gamble (PG). PG has many regional divisions across US, each organized around a central regional headquarter. They are now trying to expand into the South US area and are working on the logistics for opening a new regional headquarter just south of Dallas. As part of these efforts, Mr. Smith has recently contacted HCS to provide them with one consultant to help with few communications-oriented tasks. You are assigned to this role.
Available information as provided by PG: The communications architecture for the new regional headquarter has been established already. The new location south of Dallas will include a 3-story office building and a very large warehouse in close proximity to the office building.
Task 1: It has been established that communication between a supervisor's computer and a computer that controls equipment within the warehouse will use an encoding of 8 bits per symbol. What is the baud rate if the bit rate of the communication line is 1,024,000 bps?
Task 2: It is known that the established architecture includes a direct wired voice communication option between supervisors and workers (using voice terminals at set locations) in the warehouse. For that part, the communication has a wavelength of 0.4 meters and a speed of 4x106 meters per second. What is the frequency of this communication?
Task 3: For the voice communication in task 2, it has been decided that a 16-QAM (2 phase shifts and 8 amplitude levels) will be used. If the maximum frequency for this voice circuit is the frequency calculated for Task 2, then what is the data capacity of the analog line, assuming ideal conditions (no noise)?
Task 4: Communication among office computers is based on a protocol that uses CRC-32 for error detection. A series of 100 identical test messages are being exchanged between office computers in an attempt to test the reliability of communication lines. The decimal value corresponding to the binary version of each one of these test messages is 22,405. According to the used protocol, what is the expected EDV (error detection values) that the testing professionals should read for these messages once they arrive at a destination computer?
