Data Communication and Networking for Business Final Question - Summer 2025

Daffodil International University Faculty of Business & Entrepreneurship Department of Business Administration Program: BBA Semester: Summer 2025 Time: 120 minutes course Code: 0612-325 Exam: Final Tenn Full Marks 40 Course Teacher- Azmery Sultana Title Data Communication and Networking for Business Section: MIS-403 (63-MIS) [Answer the au (four) questions from the questions given below. Figures in the bracket indicate marks assigned to each question. Any kind of unfair means is strictly prohibited Read the questions attentively and write down your answer. Relevant aample, figures will carry greater marks] Question no 1 [CLO 2 Level 2] [Marks: SX2=10] a. Explain line coding and illustrate any two-line coding schemes with relevant figures b. Demonstrate impact of lack of synchronization in digital transmission with an example and relevant figures. Question no 2 [CLO 2, Level 5] [Marks: SX2=10] a. Determine the main techniques of digital-to-analog conversion. Interpret any two techniques with proper explanation as well as relevant figures. b. Evaluate the ley characteristics Quadrature Amplitude Modulation (QAM) with relevant figure _ Question no 3 [CLO 3 Level 4] [Marks: SX2=10] a. Compare Amplitude Modulation (AM) and Frequency Modulation (FM). b. Contrast befiveen guided media and unguided media with relevant exarnples_ Question no 4 [CL03 Level 5] [Marks: SX2=10] a. A network u.ith bandwidth of 10 Mbps can pass only an average of 18000 frames per minute with each frame carrying an average of 10000 bits Determine the throughput of this nemork_ Justi$' the importance of twisted-pair cables and coaxial cable constructions.