To check your knowledge you should be able to answer the following questions:

• Why do we need 3 servers?
• What is the specific task of the three computers?
• Which audio formats are available on a computer?
• What is the difference between lossy and looseless codecs?
• How is bandwidth measured and what is it's unit?
• What is downstream and was upstream?
• What is the task of a firewall?
• What are public / what are private IPs?
• Which stream quality in which format is still bearable?