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The FTAA exam has 75 questions and runs 2 hours.
These 10 free FTAA questions are organized by exam domain, so you can see how each part of the Fiber To Any Antenna (FTAA) blueprint is tested. Reveal the answer and explanation under each question.
A calibrated optical power meter reads -10 dBm on the fiber disconnected from a receiver. The worksheet records this as "10 dB of fiber-link loss," although launch power was never measured. How should the entry be corrected?
Correct answer: D - The reading is 0.1 mW of received power; link loss requires a launch-power reference.
Graded-index multimode fiber reduces the difference in arrival times between modes compared with step-index multimode fiber. What feature of its core produces this improvement?
Correct answer: D - A lower refractive index toward the core edge lets longer-path modes travel faster.
After slack is rearranged in a rooftop enclosure, an OTDR shows a new nonreflective loss event at that enclosure: 0.12 dB at 1310 nm and 1.65 dB at 1550 nm. The fiber continues beyond the event, and no connectors or splices were disturbed. Which finding would best explain this wavelength-dependent change?
Correct answer: B - An excessively tight slack loop
While working on a shared antenna platform, a climber's personal RF monitor alarms. The operator that commissioned the job confirms its transmitters are off, but other operators have active antennas on the platform. What is the immediate response?
Correct answer: B - Withdraw by the safe route to the designated safe area and report the alarm.
A short single-mode radio link has clean connectors, correct polarity, and compatible optics, yet it produces persistent bit errors. Measured power at the receiver is -2 dBm; the receiver specifies sensitivity of -18 dBm and a maximum operating input of -6 dBm. The commissioning record supports which diagnosis and remedy?
Correct answer: A - Receiver overload; add suitable attenuation and verify the resulting input power.
Inside an equipment shelter, a multifiber cable must separate into rugged, individually jacketed legs that can be connectorized directly at the equipment. The installer wants each leg to have its own strength members without adding a separate fan-out kit. Which construction best fits that requirement?
Correct answer: A - Breakout cable
On an isolated radio link, an LC patch-cord end face passes video inspection after cleaning. Each time it is mated to the same bulkhead and disconnected, fresh particles appear on the end face. What should be addressed before the next mating?
Correct answer: C - Inspect and clean the recessed connector; reinspect both end faces.
Following a duplex patch-cord change, both the baseband unit and remote radio report loss of received optical signal. Their compatible transceivers produce rated output, and both fibers pass loss testing. Port tracing finds transmitter-to-transmitter on one fiber and receiver-to-receiver on the other. Which patching change corrects the fault?
Correct answer: C - Exchange the two fibers at one equipment end only.
For a proposed optical link, the transmitter specification is -4 to 0 dBm and receiver sensitivity is -17 dBm at the required bit rate. The design must retain 3 dB for future degradation beyond the initial passive-path loss. Considering the low-power limit, what is the greatest initial passive-path loss that satisfies the design?
Correct answer: A - 10 dB
An optical loss test set has been referenced using a one-cord method. Before testing the next group of fibers, the technician disconnects the launch cord at the light source and reconnects it. The source and meter remain powered. What must be done before testing resumes?
Correct answer: C - Re-establish the reference using clean, verified test cords.
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