FC0-U71 Infrastructure Practice Question
A company is planning to deploy tablets for field sales representatives. Which TWO mobile device features would be most useful for navigation and contactless payments?
⚠ Common exam trap
FC0-U71 often tests whether candidates can map a stated business need (navigation, contactless payments) to the correct sensor/radio — distractors like accelerometer and gyroscope sound 'mobile' but have nothing to do with location or payments.
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
✓
GPS
Option D (GPS) is correct because GPS receivers in tablets use satellite signals to determine precise geographic position, which directly supports turn-by-turn navigation and location-based routing for field sales representatives. Option E (NFC) is correct because Near Field Communication enables short-range (typically within about 4 cm) contactless data exchange, which is the technology behind tap-to-pay mobile wallets such as Apple Pay and Google Pay. Option A (biometric authentication) is useful for securely unlocking the device and authorizing payments, but it is an authentication mechanism rather than a navigation or contactless-payment feature itself. Option B (gyroscope) and Option C (accelerometer) are motion sensors used for screen orientation, gaming, and step detection, and neither provides navigation positioning or contactless payment capability.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Biometric authentication (fingerprint)
Why it's wrong here
Fingerprint biometrics authenticate the representative to the tablet; they neither determine position nor communicate with a payment terminal. The tempting fit is device unlock and access control, where biometrics genuinely excel. Contactless payment requires NFC, and navigation requires GPS, so this feature addresses neither requirement in the scenario.
- ✗
Gyroscope
Why it's wrong here
A gyroscope senses rotational orientation for screen rotation and gaming, providing no positioning fixes or payment radio. It is tempting because it is a location-adjacent sensor, yet it only measures angular velocity. Navigation needs GPS and contactless payment needs NFC, so the gyroscope satisfies neither requirement here.
- ✗
Accelerometer
Why it's wrong here
An accelerometer detects orientation and motion for screen rotation and step counting; it provides no positioning or payment capability. It is tempting because tablets rely on it for interface behaviour, but navigation needs GPS and contactless payments need NFC.
- ✓
GPS
Why this is correct
GPS receivers in tablets use satellite signals to determine location, enabling mapping and turn-by-turn navigation for field representatives travelling between client sites. This directly satisfies the navigation requirement in the scenario, independent of the contactless payment need covered by NFC.
- ✓
NFC
Why this is correct
NFC enables short-range wireless communication for contactless payments, letting field representatives accept or make tap-to-pay transactions from the tablet. It satisfies the contactless payment requirement in the scenario, complementing GPS, which addresses the separate navigation need.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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.