Questão número 640413

This text refers to questions from 14 through 20.

According to the text, choose the option regarding hot backup systems.

• A.

  The hot backup system is a useless redundant variation of the prime system.

• B.

  In a hot backup system, the prime system is always off and the backup system is always on.

• C.

  There are manual and automatic approaches to detecting system failures.

• D.

  The automatic recognition of system failures affects the failed system.

• E.

  In the advent of failure, the failed system is disconnected from the backup system.