Questions
INTRO TO COMPUTER NETWORKS (CS_372_400_U2025) Module 3 Summary Exercises
Multiple dropdown selections
Server X is running XBox Live services on port #3072. Client A is running an application that uses port #1796 to request an XBox Live TCP connection to Server X. Client B is running an application that uses port #2076 to request an XBox Live TCP connection to Server X. IP addresses: Server X: 201.164.10.123 Client A: 128.193.11.113 Client B: 128.193.45.227 Client B starts a second application (running at the same time as the first application) that uses the next incremental port number to request an XBox Live TCP connection to Server X. The connection created for Client B is identified by the sockets at the endpoints as follows: IP address and port socket identifier Destination IP Address Destination Port Number On Client B [ Select ] 128.193.45.227 2077 3072 1797 2076 1796 201.164.10.123 128.193.11.113 [ Select ] 201.164.10.123 1796 3072 1797 2077 128.193.11.113 128.193.45.227 2076 On Server X 128.193.45.227 [ Select ] 3072 2076 2077 128.193.45.227 1797 201.164.10.123 1796 128.193.11.113
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Step-by-Step Analysis
To untangle this scenario, focus on the TCP connection attempt from Client B’s second application to Server X and map the endpoints involved in a typical TCP socket pair.
First, identify the destination (server) endpoints: Server X is hosting Xbox Live services on port 3072, and its IP address is 201.164.10.123. Therefore, any TCP connection from a client targeting the Xbox Live service on Server X will be addressed to 201.164.10.123:3072. This makes the first two selections: 201.164.10.123 for the server IP and 3072 for the server port.
Next, identify the client......Login to view full explanationLog in for full answers
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