FC0-U71 Infrastructure Practice Question

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Accelerometer

  Why it's wrong here

  The accelerometer senses device orientation and motion for screen rotation and step counting; it records no per-app battery or CPU consumption. It is tempting because the phone feels warm and movement sensors seem diagnostic, and would be correct for detecting physical motion, not identifying which recently installed app is draining the battery.

• ✓

  Battery usage monitor

  Why this is correct

  Android and iOS battery usage screens break consumption down per app, exposing which recently installed app is running in the background and keeping the CPU awake. That directly identifies the culprit behind the rapid drain and warmth described.

• ✗

  GPS

  Why it's wrong here

  GPS determines location via satellite signals; it provides no breakdown of which application is consuming battery or CPU. It is tempting because location services are a known battery consumer, and would be correct when troubleshooting a navigation or geolocation fault, not when identifying the specific recently installed app responsible.

• ✗

  NFC

  Why it's wrong here

  NFC is a short-range radio for contactless payments and tag reading; it exposes no per-application battery or processor usage statistics. It is tempting because it is a built-in radio that could be left enabled, and would be correct when pairing or making tap payments, not when identifying which installed app is causing the drain.