Which of the following statements are true?
1.Switches are networking devices operating at layer 2 or a data link layer of the OSI model. They connect devices in a network and use packet switching to send, receive or forward data packets or data frames over the network.
2.A Repeater is an electronic device that receives a signal and retransmits it at a higher level or a higher power.
A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2