Answer: Medium Dependent Interface Crossover (MDIX)
Explanation:
The technology that is typically implemented on switches to avoid Ethernet connectivity problems is Medium Dependent Interface Crossover(MDIX) For switches with Auto (MDIX) the connection is configured automatically and a crossover or straight-through cable can be used to connect two switches. When this MDIX interface is connected it corrects the connectivity speed and the cabling for proper device functionality.
The correct answer is B.UPS
A UPS or Uninterruptable Power supply makes
sure that you have backup in case there is a power outage in your area. It
provides ample time for you to save all files before shut down.