Online quizzes and practice questions, as well as other homework activities, will be linked to here as they become available.
Some hints on answering questions in Moodle.
Basics of data communications and simple performance calculations.
Performance of communication systems, focussing on delay, overhead and throughput.
Signal equations, frequency, bandwidth, spectrum and data rate.
Use Nyquist and Shannon equations to answer questions about capacity of a transmission system.
A set of questions that aim to illustrate the relationship between bandwidth, data rate and errors.
Transmit and receive power; gain and loss; dB, dBm, dBW, dBi; antennas and antenna gain.
Random questions from past quizzes that allow you to prepare for the midterm exam. This practice is not marked.
A long quiz covering Pulse Code Modulation, parity checks for error detection and both stop-and-wait and sliding-window flow control. View a video on answer the question on Sliding Window flow control.
TCP/IP protocol architecture, FDM and TDM, and circuit and packet switching.
Calculations of switching performance, routing concepts and routing tables.
Concepts of LANs and WANs, and details of Ethernet
Concepts of internetworking, details of IP, and several IP address questions.