Which of the following is used to classify network data for the purpose of providing QoS?

An administrator is attempting to add a new system to monitoring but is unsuccessful. The administrator notices the system is similar to another one on the network; however, the new one has an updated OS version. Which of the following should the administrator consider updating?

Which of the following DHCP settings would be used to ensure a device gets the same IP address each time it is connected to the network?

During a client audit, a network analyst is tasked with recommending changes to upgrade the client network and readiness. Afield technician has submitted the following report:

Based on this report, which of the following metrics or sensors would be the BEST recommendation to the client?

A network technician needs to install the latest firmware on the switch to address a recently discovered vulnerability. Which of the following should the technician do to have a rollback plan in case of issues with the new firmware? (Choose two.)