O-Strand Mission Computers Practice Test

What is the primary purpose of using redundant channels in a mission computer system?

To simplify design by using duplicates. To improve fault tolerance and allow failover. To increase data rate by duplication. To reduce weight.

Correct Answer:

To improve fault tolerance and allow failover.

Explanation:

Redundant channels exist to keep a mission computer operating even if part of the system fails. The main idea is fault tolerance with automatic failover: a backup path runs alongside the primary and the system can switch to it if the primary channel develops a fault or produces incorrect data. This setup often includes health monitoring and voting to ensure the output remains correct before a switch happens, so the overall function stays continuous and safe. It’s not about simplifying design, since duplicating components adds complexity; it’s not about increasing data rate by duplication, since duplication doesn’t inherently raise throughput; and it isn’t about reducing weight, since adding duplicates typically adds weight.

Access more questions from this quiz

Continue to O-Strand Mission Computers Practice Test for more practice questions and the full quiz experience.

Access More Questions