InstructionsExplain and provide example when it is possible that will cover chapter 4 subjects:Data Link Layer–Media Access Control•Controlled Access• Contention Access– ErrorControl• Prevention• Detection• Correction– Protocols• Async• SDLC• Ethernet• PPP–Transmission Efficiency and ThroughputAdditionals resourceshttps://www.csus.edu/indiv/m/millerd/Ch4%20Ed7%20Notes.ppt