Question 130
At the Uptonbridge school district, a distribution switch has two power modules connected to the same failed circuit. Which explanation best accounts for the concern?
Explanation
Correct Answer
The problem stems from the fact that two power supplies on one electrical source do not protect against a common circuit failure. A correct solution would feed supported redundant power supplies from independent approved circuits and verify failover and check that removing one approved circuit leaves forwarding and required modules operational. This result addresses the stated challenge at the Uptonbridge school district.
Incorrect Answers
The option states: Mismatched optic characteristics prevent a valid light path despite correct switch configuration. By contrast, the current situation is governed by: two power supplies on one electrical source do not protect against a common circuit failure. Choosing this alternative would leave the question’s specific root-cause explanation unresolved.
without learned receiver groups a Layer 2 multicast stream may be flooded to unrelated ports, rather than merely a monitoring or presentation issue. The offered alternative applies that mechanism: Without learned receiver groups a Layer 2 multicast stream may be flooded to unrelated ports. The reported facts point to a different controlling condition: two power supplies on one electrical source do not protect against a common circuit failure. The alternative does not directly settle the required root-cause explanation.
BGP neighbors require compatible AS relationships and reachable transport before exchanging routes. Its technical scope is explained by: BGP neighbors require compatible AS relationships and reachable transport before exchanging routes, rather than merely a monitoring or presentation issue. In this question, the decisive issue is: two power supplies on one electrical source do not protect against a common circuit failure. That is why the offered option is not the most direct root-cause explanation.