In the 1980s, when we wrote the first edition of this book, there were many, many more protocols in common use at the data link, network, and transport layers than there are today. Why do you think the number of commonly used protocols at these layers has declined? Do you think this trend will continue? What ❦ ❦ ❦ ❦ Minicases 21 are the implications for those who design and operate networks?

How do you set up a slide show to play continuously, advancing through all the slides without requiring your interaction? a. click set up slide show, and then select the loop continuously until ‘esc' and show without narration options. b. click set up slide show, and then select the loop continuously until ‘esc' and use timings, if present options. c. click set up slide show, and then select the show presenter view and use timings, if present options. d. click set up slide show, and then select the show without animation and browsed at a kiosk (full screen) options.

What is the ooh? a. omaha occupation handbook b. online occupational c. occupations online d. occupational outlook handbook select the best answer from the choices provided

What multimedia system creates an immersive, real-life experience that the user can interact with?