Try the full study dashboard free, no signup: practice, flashcards and your Exam Readiness Score. Open it →
RCDDQuizBank
Start free
Home / Practice tests / SCTE BFTS
SCTE · Last updated November 2026

SCTE Broadband Fiber Transport Specialist (BFTS): free practice test

BFTS certifies knowledge of optical transport in cable access networks, from the transport facility to the node, across multiple architectures. SCTE lists five subject areas: fiber optics theory, optical transport systems, link performance, troubleshooting and maintenance, and construction. The online exam has 50 questions in 2 hours, is open book and needs 76% to pass.

Start the free 15-question testRead the study guide

Premium: 3,000 practice questions, 6 full mock exams, 800 flashcards and 60 comprehensive key notes, topic by topic. See the study path ·

Or open the free SCTE BFTS study dashboard: flashcards, notes and your Readiness Score, no signup →

About the SCTE BFTS exam

BFTS certifies knowledge of optical transport in cable access networks, from the transport facility to the node, across multiple architectures. SCTE lists five subject areas: fiber optics theory, optical transport systems, link performance, troubleshooting and maintenance, and construction. The online exam has 50 questions in 2 hours, is open book and needs 76% to pass.

What's on the exam

SCTE BFTS
Fiber Optic Theory and Fiber Characteristics
7 key facts
Cables, Connectors and Passive Components
6 key facts
Transmitters, Receivers and Optical Amplifiers
7 key facts
Optical Transport Architectures and Transmission Techniques
6 key facts
Link Performance and Optical Budgets
6 key facts
Test Equipment, Troubleshooting and Restoration
7 key facts
Aerial and Underground Construction and Splicing
6 key facts

Each branch is a topic in the official outline. Members see every key fact on the full mind map. Read the free study guide →

How to pass the SCTE BFTS exam

  • 50 questions in 2 hours is 2.4 minutes each, so open book helps only if your references are organized. Prepare one page of dB, dBm, loss-per-km and splitter values before you start.
  • You need 38 of 50 correct for 76%. Link budget, dB conversion and OTDR questions are calculation marks you should not drop.
  • Know cable-specific transport: 1310 nm versus 1550 nm analog optics, EDFAs, SBS limits, the 1 dB optical to 2 dB RF rule and what changes with Remote PHY digital optics.
  • Construction questions test field practice: bend radius under tension, pulling tension limits, slack storage and splice closures. Think as the lead technician on site.

Save your results and get your Readiness Score

Create a free account after the test: your score by topic, a mistakes bank, the complete study notes for the first topic, flashcards and the RCDD Numbers & Formulas Sheet.

Take the test first

What's in the premium SCTE BFTS prep

Premium SCTE BFTS prep is studied one topic at a time. Each step starts with that topic's key notes and flashcard deck, then its own question sets of 25, so you master one topic before you move to the next. When every topic is strong, the 6 full mock exams show you're ready.

3,000practice questions, every answer explained
6full-length mock exams, 50 questions each, timed
800flashcards with spaced repetition, sorted by topic
60comprehensive key notes across 7 topics

Your step-by-step study path

  1. 1
    Fiber Optic Theory and Fiber Characteristics9 key notes, 115 flashcards, then 450 practice questions in 18 sets of 25
    Notes free with an account
  2. 2
    Cables, Connectors and Passive Components9 key notes, 115 flashcards, then 425 practice questions in 17 sets of 25
    Premium
  3. 3
    Transmitters, Receivers and Optical Amplifiers9 key notes, 115 flashcards, then 425 practice questions in 17 sets of 25
    Premium
  4. 4
    Optical Transport Architectures and Transmission Techniques9 key notes, 115 flashcards, then 425 practice questions in 17 sets of 25
    Premium
  5. 5
    Link Performance and Optical Budgets8 key notes, 115 flashcards, then 425 practice questions in 17 sets of 25
    Premium
  6. 6
    Test Equipment, Troubleshooting and Restoration8 key notes, 115 flashcards, then 425 practice questions in 17 sets of 25
    Premium
  7. 7
    Aerial and Underground Construction and Splicing8 key notes, 110 flashcards, then 425 practice questions in 17 sets of 25
    Premium
  8. Final step: 6 full mock exams50 questions each, timed like test day. Pass them, then book your exam.
    Premium
Free with an account

Read the complete SCTE BFTS study notes for “Fiber Optic Theory and Fiber Characteristics”

Our first full set of comprehensive notes, about 12 minutes of reading: How fiber guides light · Attenuation and wavelength · Dispersion · Bending, a worked exam example, the traps examiners use and a one-minute recap. Create a free account to read it and see how premium notes work before you decide.

Open the free dashboard

Study tools included

3,000 practice questions

3,000 exam-style questions per exam, organized topic by topic in sets of 25. Every answer explained, with the rule it comes from.

6 full mock exams

6 full-length timed mock exams per exam, with real question counts and time limits, so test day feels like practice day.

Exam Readiness Score

One 0 to 100 number that tells you when you're ready to book. Reach 80 and you're covered by our Pass Guarantee.

800 flashcards + spaced repetition

800 flashcards per exam, in a deck for each topic, that come back right before you'd forget them. Five minutes a day keeps every number fresh.

60 comprehensive key notes

60 key notes per exam, split across its topics and each explained in full: the concepts, worked exam examples, the traps examiners use and a quick recap. Your first set is free with an account.

Mind maps

See the whole exam on one screen: every topic and the facts under it.

Sample questions with answers

These are the questions in the free test above, with answers. Try the test first. You'll learn more by getting some wrong.

1. A transport span on standard single-mode fiber (ITU-T G.652) is being moved from 1310 nm to 1550 nm DWDM. Which fiber parameter is close to zero at 1310 nm but about 17 ps/(nm·km) at 1550 nm?
Answer: Chromatic dispersion. G.652 fiber has its zero-dispersion wavelength near 1310 nm, and chromatic dispersion rises to about 17 ps/(nm·km) at 1550 nm. Attenuation is actually lower at 1550 nm (about 0.25 versus 0.35 dB/km), which is why long spans use 1550 nm with dispersion managed. PMD does not vary this way with wavelength.
2. A technician measures a 30 km span at both wavelengths. Loss at 1550 nm is 2.5 dB higher than at 1310 nm, although 1550 nm normally shows less loss. What is the most likely cause?
Answer: A macrobend, such as a tight splice tray loop. Bend loss rises sharply with wavelength because longer wavelengths are less tightly confined to the core, so a macrobend shows much more loss at 1550 nm than 1310 nm. A dirty connector adds loss at both wavelengths. Rule: higher loss at 1550 than at 1310 points to a bend.
3. During restoration, a technician connects a green APC jumper to a blue UPC bulkhead adapter at a node. What is the likely result?
Answer: High loss and strong reflection from the air gap. An 8-degree angled (APC) end face does not make physical contact with a flat (UPC) face, so an air gap causes high insertion loss and strong reflection. Analog optical links in cable plants use APC connectors because reflections raise noise and distortion. Never mate APC with UPC, even if the ferrules fit.
4. A node is fed from the 30% leg of a 70/30 optical coupler. Ignoring excess loss, what is the theoretical loss on that leg?
Answer: 5.2 dB. Loss = 10 log (1 / 0.30) = 5.23 dB, so about 5.2 dB. The 70% leg loses 10 log (1 / 0.70) = 1.55 dB. Real couplers add excess loss on top, so check the manufacturer's data when building a budget.
5. An engineer wants to extend a 1310 nm analog forward link by adding an erbium-doped fiber amplifier (EDFA) mid-span. What is the problem with this plan?
Answer: EDFAs amplify only around the 1550 nm band, not 1310 nm. Erbium provides gain in the C-band, about 1530 to 1565 nm (and the L-band with special designs), so it cannot amplify a 1310 nm signal. That is why long amplified cable transport uses 1550 nm optics. The pump laser is coupled into the same fiber inside the amplifier.
6. A 1550 nm analog transmitter's launch power is raised from +13 dBm to +20 dBm into a 40 km span. Reflected power at the transmitter rises sharply and the node's carrier-to-noise ratio gets worse. What is happening?
Answer: Stimulated Brillouin scattering above threshold. Above its threshold, stimulated Brillouin scattering sends power back toward the source and adds noise, so more launch power stops reaching the far end. Analog 1550 nm transmitters use SBS suppression and have a maximum launch rating. Receiver overload would not raise reflected power at the transmitter.
7. At an analog node, the optical input drops by 1 dB because of a dirty connector. By about how much does the receiver's RF output level drop?
Answer: 2 dB. The photodiode's current is proportional to optical power, and RF power is proportional to current squared, so 1 dB of optical change gives 2 dB of RF change. That is why small optical losses matter so much in analog links. Rule: 1 dB optical equals 2 dB RF.
8. A node is converted from an analog optical receiver to a Remote PHY device. What does the transport fiber to that node now carry?
Answer: Digital Ethernet, with RF generated at the node. In distributed access architecture, Remote PHY moves the DOCSIS and video physical layer into the node, so the fiber carries digital Ethernet (typically 10 Gbps) and the node creates the RF. The link then behaves like a digital link with pass-fail receiver thresholds instead of CNR that degrades with optical loss.
9. A hub-to-node route has only two fibers left, and 16 new node feeds are needed on that route. Which approach solves the fiber shortage without new cable?
Answer: DWDM on the two existing fibers. DWDM puts many wavelengths on one fiber (about 0.8 nm apart on a 100 GHz grid), so each node gets its own channel. A splitter would broadcast the same signal to every node rather than carrying 16 different feeds. Changing wavelength or adding amplification does not create more channels.
10. A 1310 nm transmitter launches +10.0 dBm. The 20 km span loses 0.35 dB/km, with 4 connectors at 0.5 dB each and 8 splices at 0.1 dB each. What optical level reaches the node?
Answer: +0.2 dBm. Fiber 20 × 0.35 = 7.0 dB, connectors 4 × 0.5 = 2.0 dB, splices 8 × 0.1 = 0.8 dB, total 9.8 dB. Received = 10.0 - 9.8 = +0.2 dBm. A common error is forgetting the splices, which gives +1.0 dBm, or counting connectors twice.
11. A short hub-to-node digital link has a receiver range of -14.4 to +0.5 dBm. The node reads +2.5 dBm and shows errors. What is the correct fix?
Answer: Add a 3 to 5 dB attenuator at the receiver. +2.5 dBm is 2 dB above the +0.5 dBm overload level, so the receiver is saturated. An inline attenuator of about 3 to 5 dB brings it into range with margin. Too much light causes errors just like too little; always compare received power with both sensitivity and overload.
12. A link budget has 22 dB available between transmitter output and receiver sensitivity. Calculated loss is 17.5 dB and the design requires a 3 dB maintenance margin. Does the link pass?
Answer: Yes, with 1.5 dB to spare after the margin. Remaining power = 22 - 17.5 = 4.5 dB; after reserving the 3 dB margin, 1.5 dB is left, so the link passes. The margin covers future splices, aging and repairs. Forgetting to subtract the margin overstates the spare power.
13. An OTDR shows a fiber break at 8.20 km. The crew walks 8.20 km along the sheath markings and finds no damage. What is the most likely reason?
Answer: Slack loops and excess fiber length in the tubes. The OTDR measures optical fiber length, which exceeds sheath length because fibers sit in loose tubes and slack is stored in loops and closures. Check the index of refraction setting, then use as-built slack records and sheath markings at known points to convert to ground distance.
14. A fusion splice joining two different single-mode fibers shows a 0.15 dB gain when tested from one end. How should the true splice loss be found?
Answer: Test from both ends and average the two readings. Different backscatter coefficients or mode field diameters make an OTDR show a gainer from one direction and an exaggerated loss from the other. Averaging the two directions gives the true splice loss. A gainer does not mean the splice is bad or perfect.
15. An outside plant fiber cable has an outside diameter of 0.60 in. During pulling under tension, what minimum bend radius should be kept?
Answer: 12 in. The common rule is 20 times the cable OD under tension during installation and 10 times OD at rest after installation, unless the manufacturer states otherwise. Here 20 × 0.60 = 12 in under tension; 6 in applies only once the cable is no longer under load.

Get the full SCTE BFTS prep

Most popular · cancel anytime

Premium Monthly

$147/month
per exam
About $4.83 a day · a fraction of a retest fee, for the credential that gets you on the bid list
  • The RCDD exam: full prep for the v15 blueprint
  • 3,000 practice questions + 6 full mock exams per exam
  • 800 flashcards + 60 key notes per exam, by topic, plus mind maps
  • Spaced repetition + mistakes bank
  • Readiness Score & detailed reports
  • Video lessons as they release
  • Content updates during your access
  • 5 bonuses: numbers and formulas sheet, standards atlas, study planner and more
  • Pass Guarantee: complete the prep, pass or 100% back

Renews monthly until you cancel. Cancel in two clicks from your account; you keep access until the end of the month you've paid for. No minimum term.

Best value · 3 months free

Premium Yearly

$1,323/year
per exam
Pay for 9 months, get 12. Save $441 against paying monthly.
  • The RCDD exam: full prep for the v15 blueprint
  • 3,000 practice questions + 6 full mock exams per exam
  • 800 flashcards + 60 key notes per exam, by topic, plus mind maps
  • Spaced repetition + mistakes bank
  • Readiness Score & detailed reports
  • Video lessons as they release
  • Content updates during your access
  • 5 bonuses: numbers and formulas sheet, standards atlas, study planner and more
  • Pass Guarantee: complete the prep, pass or 100% back

Renews once a year until you cancel. We email you before each renewal. Cancel any time from your account; you keep access until the end of the year you've paid for.

Pass Guarantee. Complete the full prep, sit your exam within 60 days, and if you don't pass we refund 100% of your subscription payments. See the requirements
Secure checkout by Stripe Card, Apple Pay, Google Pay Pass Guarantee

SCTE BFTS exam FAQ

How many questions are on the SCTE BFTS exam?

50 multiple-choice questions, with a time limit of 2 hours; the exam cannot be paused and breaks are not allowed. Format: open book: scte training materials, books, printed documents, notes, tables, calculators and internet resources are allowed (digital content in a separate tab of the same browser); ai tools are not allowed.

What is the passing score for SCTE BFTS?

76%.

How much does the SCTE BFTS exam cost?

US$125 for members and non-members; a new fee is due for each attempt and the exam must be taken within one year of purchase. Certification lasts 3 years and is renewed with 36 continuing education hours (CEH) or by retaking the exam. BICSI fees can change without notice, so confirm on bicsi.org before you apply.

Which languages is the SCTE BFTS exam offered in?

English. SCTE's catalog also lists a Spanish transport exam, Especialista en Transporte de Banda Ancha (BTS), at US$112 non-member / US$84 member; confirm with SCTE whether it matches the current BFTS.

Where do I take the SCTE BFTS exam?

Online through the SCTE account portal, with Proctorio automated remote proctoring on Chrome or Edge (webcam, microphone and photo ID required).

Is this SCTE BFTS practice test free?

Yes. The 15-question practice test on this page is free, with an explanation for every answer and no signup. A free account also unlocks the complete study notes for the first topic. The full SCTE BFTS prep is Premium at $147 a month for this exam.

What's in the premium SCTE BFTS prep?

3,000 practice questions organized topic by topic (Fiber Optic Theory and Fiber Characteristics: 450; Cables, Connectors and Passive Components: 425; Transmitters, Receivers and Optical Amplifiers: 425; Optical Transport Architectures and Transmission Techniques: 425; Link Performance and Optical Budgets: 425; Test Equipment, Troubleshooting and Restoration: 425; Aerial and Underground Construction and Splicing: 425), 6 full-length timed mock exams of 50 questions, 800 flashcards and 60 comprehensive key notes split across all 7 topics, plus a mistakes bank and the Readiness Score.

Related practice tests

SCTE

SCTE Broadband Premises Installer (BPI)

BPI is SCTE's foundation certification for entry-level technicians who install video, voice and data services at the customer's premises over coax (DOCSIS) and fiber (PON).

15 free questions3,000 premium Qs · 6 mocks · 800 flashcards · 60 key notes
Start free test →
SCTE

SCTE Broadband Premises Technician (BPT)

BPT v2.0 is SCTE's stand-alone certification for experienced field technicians who install and troubleshoot video, voice and data services at the premises over HFC, PON and FTTx networks.

15 free questions3,000 premium Qs · 6 mocks · 800 flashcards · 60 key notes
Start free test →
SCTE

SCTE Broadband Fiber Installer (BFI)

SCTE's BFI certification covers installing, verifying and troubleshooting fiber-to-the-home service, from PON and RFoG components to splicing, connectors, power budgets and OTDR work.

15 free questions3,000 premium Qs · 6 mocks · 800 flashcards · 60 key notes
Start free test →

Exam details are summarized from the official candidate information available in October 2026. BICSI changes formats and fees, so confirm with SCTE (Society of Cable Telecommunications Engineers), a subsidiary of CableLabs before you book. RCDDQuizBank is not affiliated with BICSI or Pearson VUE.

Start the free test