What is the help command in Cisco IOS?

Which connectivity options are used to connect to the Internet? (Select all that apply.)

A) Satellite modem B) Dial-up modem C) VoIP D) PSTN E) DSL F) Cable modem G) WiMax H) TelePort

Ethernet switches must maintain a table of MAC addresses of the devices connected to each port.

a. true b. false