The management team wants to set up a wireless network in their office but all of their phones operate at the 2.4 GHz frequency. They need a wireless network that
would be able to operate at a higher frequency than their phones. Which of following standards should be used?

Which of the following devices implements CSMA/CA virtually through the RTS/CTS protocols?

Which of the following will negotiate standoff timers to allow multiple devices to communicate on congested network segments?

A network administrator is using a packet analyzer to determine an issue on the local LAN. Two separate computers are showing an error message on the screen
and are unable to communicate with other computers in the same lab. The network administrator looks at the following output:
SRC MACSRC IPDST MACDST IP
00:1D:1F:AB:10:7D192.168.1.10:200015:BE:9F:AB:10:1D192.168.1.14:1200
05:DD:1F:AB:10:27192.168.1.10:100022:C7:2F:AB:10:A2192.168.1.15:1300

Given that all the computers in the lab are directly connected to the same switch, and are not using any virtualization technology, at which of the following layers of
the OSI model is the problem occurring?

When troubleshooting a network problem, browsing through the log of a switch, it is discovered that multiple frames contain errors. In which of the following layers
does the problem reside? (Select TWO).