hardMultiple Choice
FC0-U71 Practice Question: A company's server room is experiencing…
A company's server room is experiencing intermittent overheating. The administrator notices that the perforated floor tiles are blocked by equipment. What is the most likely consequence of this obstruction?
⚠ Common exam trap
Candidates often confuse airflow obstruction with electrical or power-related issues, but the direct consequence is always thermal—reduced cooling and hot spots—not changes to the UPS or battery system.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Reduced cooling efficiency and hot spots
Blocking perforated floor tiles restricts the flow of cold air from the raised-floor plenum into the server room. This reduces the overall cooling efficiency of the HVAC system and creates localized hot spots around the obstructed tiles, which can lead to equipment overheating and failure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Reduced cooling efficiency and hot spots
Why this is correct
Perforated tiles supply the cold-air plenum's airflow into the cold aisle. Blocking them starves racks of supply air, so cooling efficiency drops and hot spots form where airflow is insufficient, directly matching the intermittent overheating described.
- ✗
Increased electrical load on the UPS
Why it's wrong here
Blocked tiles restrict cold-air delivery, so servers run hotter; the UPS electrical load stays constant because equipment power draw is unchanged. Increased UPS load would be the right answer if additional servers or devices had been installed on the protected circuit.
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Increased humidity levels
Why it's wrong here
Blocked perforated tiles disrupt the cold-aisle airflow that cools equipment, raising rack inlet temperatures; humidity is controlled by CRAC units and remains largely unaffected by tile obstruction. Humidity sensing matters when diagnosing CRAC humidifier faults or outside-air economiser issues, not floor-tile blockage.
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Reduced battery backup time
Why it's wrong here
Battery runtime depends on UPS load and battery health, not on underfloor airflow; blocked tiles cause hot spots, not reduced autonomy. Reduced backup time would be the correct finding when ageing batteries or added load exceed the UPS design runtime during a power failure test.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the FC0-U71 exam.