Roaming between APs takes place in which of the following layers of the OSI model?

Joe, a user, reports that he does not have connectivity in WLAN. Which of the following is the
FIRST approach a mobile technician should take for troubleshooting?

Which of the following protocols is preferred for VoIP communication?

Joe, a user, has problems connecting to the wireless network when he changes locations. Joe has
a good signal and enters his credentials correctly, but cannot connect to the wireless network in
the new location. Which of the following is the BEST course of action?

Which of the following is the BEST approach when installing 802.11 access points in a building to
ensure that everyone will get a signal to attach to the WLAN?

Which of the following is the BEST approach when configuring server-based management in

mobility?

Which of the following is correct while designing/implementing mobility?

Joe, a mobile user, claims he is unable to connect to resources on the WiFi network. Joe has a
good signal and an IP address assigned to his device. Which of the following is the BEST
troubleshooting technique that the administrator can take?

Which of the following is a WiFi topology that occurs when Ann, an end-user, configures her laptop
to be a WiFi access point to which another device connects?

Which of the following technologies allows multiple network devices to have the same public
source IPv4 address when communicating with other devices on the Internet?