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Objective 3.6220-1201

3.6 Given a scenario, install the appropriate power supply.

Objective 3.6 sits in Hardware, which carries 25% of the A+ Core 1 exam. The questions below are original, written from the official objective title above, and each explanation cites the CompTIA page it rests on.

Objective title verbatim from the official objectives. CompTIA exam page ↗

A worked example

Shown solved, with the whole explanation open: this is what every question here carries.

3-6HardwareModerate

A server runs on two installed power supplies and one of them fails overnight. Users report no outage. What does the management controller do?

Log an event and drop to non-redundantCorrect · your answerCorrect. Service continues and the recorded state changes to reflect the loss.
Shut the server down after a grace periodAn orderly shutdown would defeat the purpose of fitting a second supply.
Throttle the processors until the part is replacedThrottling belongs to the mode where no redundancy was configured in the first place.
Split the remaining load across both baysA failed unit supplies nothing, so there is no load left in that bay to share.

Correct.

Concept

Redundancy is a state the platform tracks, not a fixed property. When a source is lost the remaining one carries the whole load, and the platform records that the protection it was providing has gone.

Why A

The survivor was already able to carry the load on its own, so service continues while the controller records the loss and rewrites the redundancy state.

Source

#power-supply#redundancy#server

Now you: objective 3.6 questions

No account needed. The explanation opens when you answer.

Sample question 1 of 3

3-6HardwareHard

A rack is fed by two independent circuits, and either circuit alone can carry the full load of a server. Which redundancy arrangement describes this?

Sample question 2 of 3

3-6HardwareModerate

An idle server with two supplies shows one of them in standby while the other carries everything. Nothing has failed. What is this behaviour for?

Sample question 3 of 3

3-6HardwareModerate

A server shipped with one 750 watt hot-swap supply, and stock holds a spare 1100 watt unit of the same series. What must the technician confirm before fitting it?

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Read the sources

These are the official pages the questions above cite. Reading them is studying the objective from the primary source, which is what the explanations point you toward anyway.

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