Which of the following describes the operational difference between hubs and switches when transmitting data to a specific computer inside the network?

A company wants to use client-side visualization for application testing. Which of the following configurations would BEST support this goal?
A)

B)

C)

D)

A technician is setting up a device to use two-factor authentication. Which of the following meets this requirement?

A customer reports that access to the network fileshare has become much slower than usual, but local applications do not seem to have trouble. The technician checks the download bandwidth and finds no issues.
Which of the following should the technician check NEXT?

A salesperson is using a weather application on a mobile device. The application appears to be draining the device's battery very quickly. Which of the following is the BEST action for the salesperson to take in order to view weather forecasts while travelling?