Which of the following DNS records would a technician need to update after migrating an organization's email server to a cloud-hosting provider?

Zach, a technician, discovers a switch is not communicating with the other switches in a stack.
Which of the following is the MOST likely cause?

Which of the following is the MOST appropriate use case for the deployment of a clientless VPN?

A Chief Information Officer (CIO) is reviewing a proposal to provide access security for the IT department's restricted area. Which of the following is a preventive measure that should be implemented?

A network technician receives a call from a branch office about a problem with its wireless connectivity. The user states the office hosting a large meeting that includes some online training with local businesses. The guest users have all brought devices to connect to the guest network at the branch office. All users are connected to a single WAP and are reporting that connections dropping and network speeds are unusable. Which of the following is the MOST likely cause of this issue?