5. reconnaissance: jane has an intent to penetrate the network in an organization. she has used passive reconnaissance to gather extensive information on the company. she finds out the model numbers of routers and other devices by reading discussions between system administrators in forums. she also has a list of all the it staff and their phone numbers. she also has the services running on ports on some machines she ran a network scanner on. a. what reasonable steps should the company have taken to prevent jane from finding this information? b. what steps should the company take to prevent or reduce the efficacy of port scans?