Data Communication Assignment

EENG 33151 DATA COMMUNICATION AND selective information processor NETWORKS ASSIGNMENT 1 (CO1, CO2 PO1,PO3) celebrate Submission Date On or before but not later 12-10-2012 Refer Data Communications and Networking fourth edition, Behrouz A. Forouzan No Plagiarism Kindly office A4 sheets 1. For n devices in a vane, what is the subject of cable links required for a mesh, shout, bus, and star topology? 2. Assume volt devices atomic number 18 arranged in a mesh topology. How many cables are infallible? How many styles are needed for individually device? 3. What is the difference between an meshing and the Internet? 4.When a party makes a local telephone call to some other party, is this a point-to-point or multipoint connection? justify your answer. 5. You have three computers connected by an Ethernet hub at home. Is this a LAN, a MAN, or a WAN? Explain your answer. 6. In a bus topology and ring topology of 8 devices, what happens if one of the nodes is unplugged? 7. fit in the future(a) to one or much layers a. Route determination b. Flow turn back c. Provides access to the end user d. qualifys frames e. Mechanical, electric and functional interface f. Establish, manages and terminates sessions 8.What are the responsibilities of the network layer in the Internet beat? 9. What is the difference between a port address, a logical address and a physical address? 10. Define conclusion. Define relative frequency. 11. In Europe, the power they use at home has a frequency of 50Hz. What is the period of the sine wave in ms? 12. The frequency of a bespeak is cxl KHz, calculate the corresponding period. 13. The period of a signal is 12 micro seconds, what is its frequency? 14. The period of a signal is c ms, what is its frequency in kilohertz? 15. meet the data eccentric stream of the following graphs picpic 16.Draw the graph of Polar RZ scheme for the telephone number streams, (a) 01001, and (b) 00110011001 17. Draw the graph of NRZ-L and NR Z-I schemes for the following data streams (a) 111100001 and (b) 001100110101 18. Draw the graph of Polar Manchester and derived function Manchester Bi-phase AMI and Pseudo ternary for the billet streams, (a) 010011001 and (b) 00110011 19. An analog signal carries 2 bits per signal instalment. If 2000 signal elements are sent per second, find the bit rate. 20. An analog signal has a bit rate of 12000 bps and a baud rate rate of 3000 baud. How many data elements are carried by each signal element?