Semester Winter Semester 2021-22 Instruction: MATITUTE OF 5 MODA BE y ||| 5 ITA1006 111 School of Information Technology and Engineering Department of Software Engineering BCA (CA) 3 Years Programme Course Code Course Title III 5 VIT Vellore Institute of Technology (Deemed to be University under section 3 of UGC Act, 1956) 5 Computer Networks H 1. Write your answer in A4 sheet, scan it and upload your answer as PDF. 2. Write your own answer and don't copy from any other source. 3. If similar answer is found for Q1 and Q2, zero mark will be awarded. 4. Uploaded your assignment on or before the due date. 5. Submission of the assignment only through VTOP not by any other mode. Questions: a DIGITAL ASSIGNMENT-I 180 Class Number 1. Using the site www.ieee.org, discuss IEEE's activities. 2. There are several network layer models proposed in the OSI model. Find all of them. Explain the differences between them. 3. (a) What is the phase shift for the following? A sine wave with zero amplitude after 3/4 cycle and increasing. (b) A device is sending out data at the rate of 1000 bps. How long does it take to send a file of 100,000 characters? 4. (a) What is the bandwidth of the composite signal for the in Figure? | | VL2021220504451 O C1+TC1 (5*2=10 Marks) Frequency Slot (b) The light of the sun takes approximately eight minutes to reach the earth. What is the distance between the sun and the earth? 5. A non-periodic composite signal contains frequencies from 10 to 30 KHz. The peak amplitude is 10 V for the lowest and the highest signals and is 30 V for the 20-KHz signal. Assuming that the amplitudes change gradually from the minimum to the maximum, draw the frequency spectrum.