?Almost all MANs are based on one of two basic forms of supporting technology: ____ or Ethernet.

A network technician has just upgraded a switch. The new switch's IP range and subnet mask correctly match other network devices. The technician cannot ping any device outside of the switch's own IP subnet. The previous switch worked correctly with the same settings. Which of the following is MOST likely the problem?

A. The proxy server is set incorrectly. B. The Ethernet cable is pinched. C. The network gateway is set incorrectly. D. The IP address is set incorrectly.

Which of the following protocols is the MOST secure for transferring network device configurations?

A. TFTP B. FTP C. SCP D. RCP