Mai is investigating an unknown service on a remote system that responds on a non-standard port. She wants to identify details about the underlying communication and software version. Which action would produce the right data for further analysis?
Review older session captures from a separate host to identify the channel's pattern
Use a scanning application to initiate a handshake and analyze the returned headers
Observe log events from the target's system console to determine the possible software
Send test data at the port and note error codes appearing in the console
Initiating a handshake with specialized scanning software interacts directly with the remote service. This provides accurate information about the communication method and version. Older session captures, console logs, or simply injecting test data may not reveal the true nature or current configuration of the service.
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What is a handshake in network communication?
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What type of scanning tools can initiate a handshake and analyze returned headers?
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Why are log events and session captures less reliable for identifying remote services?