🔍 Key Concepts

• Fleet Broadband uses shared satellite channels where many vessels can be logged on at once • Difference between channel congestion/contention and the type of application protocol being used (FTP, POP, SMTP, HTTP all ride on TCP/IP) • How the number of simultaneous users on a shared link affects each user’s throughput/bit rate

💭 Think About

• Which option describes a situation where many terminals are trying to use the same satellite capacity at the same time, dividing the available bandwidth among them? • Is any option suggesting something that would not realistically change the raw bit rate, but only the way data is packaged or the traffic direction? • Which choices can you rule out because they confuse protocols with the underlying IP bearer service or describe an illogical upstream/downstream use?

✅ Before You Answer

• Identify which choices clearly involve shared/contended capacity on the satellite link • Eliminate any answer that treats FTP, POP, SMTP, or HTTP as alternatives to TCP/IP rather than applications running over it • Check that the remaining choice reflects a realistic cause of reduced observed user bit rate on a Fleet Broadband terminal in heavy-usage conditions