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Course: INTRODUCTION TO DATA COMMUNICATION AND NETWORKING

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PART A (20 MARKS) 1. Data flow between two routers occur in a a. simplex b. half-duplex c. quarter-duplex d. full-duplex 2. The physical path in which a message travels from sender to receiver in a data communication system is the a. medium b. protocol c. message d. transmission medium 3. A frequency of failure is the a. performance b. reliability c. security d. feasibility a. bus b. ring c. star d. mesh way. issue. 4. The entire topology is dependent on the central device. If it fails, the entire system fails. This is one of the disadvantages of the topology. c. non-periodic signals d. low frequency sine waves 5. A completes a pattern within a measurable time frame, called a period, and repeats that pattern over subsequent identical periods. a. periodic signals b. electromagnetic signals PART A (20 MARKS) 1. Data flow between two routers occur in a a. simplex b. half-duplex c. quarter-duplex d. full-duplex 2. The physical path in which a message travels from sender to receiver in a data communication system is the a. medium b. protocol c. message d. transmission medium 3. A frequency of failure is the a. performance b. reliability c. security d. feasibility a. bus b. ring c. star d. mesh way. issue. 4. The entire topology is dependent on the central device. If it fails, the entire system fails. This is one of the disadvantages of the topology. c. non-periodic signals d. low frequency sine waves 5. A completes a pattern within a measurable time frame, called a period, and repeats that pattern over subsequent identical periods. a. periodic signals b. electromagnetic signals