The back cover of a mobile device is warmer than usual, and…

The back cover of a mobile device is warmer than usual, and the battery seems to lose its charge much quicker than normal. The user has scanned for malware, closed unused apps, and decreased the brightness level of the screen, but the symptoms persist. Which of the following is the most likely cause for this behavior?

Luca knows a little bit about computers and is asked to help…

Luca knows a little bit about computers and is asked to help set up a small office with seven computers and an older high-quality printer that does not have an Ethernet port. Luca connects the printer to a computer and configures sharing. However, none of the computers seem able to connect or send jobs to the printer. What should Luca do?