Anfisa, a network engineer is asked to inspect a network and determine whether it should be upgraded to fiber optic. Building-to-building connections are connected using coaxial cables, and privacy information is showing up on PASTEBIN. What is her recommendation for BEST security?

Domain 4: Communication and Network Security Practice Questions
Questions from the following topics are included in this domain:   
Assess secure network design principles.   
Implement secure network design principles.  
Secure network components using network access control devices.   
Implement secure design communication channels.  
Understand data communications and virtualized networks.