This text refers to questions from 14 through 20....

The main concerns in system redundancy implementation are also found in component redundancy implementation.

The redundancy of a critical component may help achieving reliability requirements.

In the redundant car braking system mentioned in the text, the master brake cylinder is redundant, whereas the brake pedal and linkage are not.

Failure can be avoided once a system redundancy is switched on.

The redundant brake system mentioned in the text could be considered to be a fault tolerant system.