Knowledge check Integration & Delivery
10 questions in pool · live exam draws 4
SP3
Q1 multiple-choice · file-size-target Target file size for a normal product on web e-commerce page?
Source: SP3D04 §1.
Explanation: Web page load time + bounce rate compounds. Aggressive optimization to < 5 MB is the bar; < 2 MB is great.
Q2 multiple-choice · optimization-levers Most impactful optimization lever for reducing file size?
Source: SP3D04 §1.
Explanation: Polycount reduction is the highest-impact lever. Decimate iteratively + QC silhouette at each step.
Q3 scenario · embedding-pattern Small DTC fashion brand, standard product pages, no in-house engineers.
Source: SP3D04 §2.
Explanation: <model-viewer> is the default for most engagements — Google web component, broad support, AR integration built-in.
Q4 multiple-choice · cross-platform-ar Standard cross-platform AR delivery (iOS + Android + web)?
Source: SP3D04 §3.
Explanation: <model-viewer> handles the cross-platform routing automatically. Ship both formats; let the tag dispatch.
Q5 true-false · kx2 KTX2 / Basis Universal texture format provides significant file size reduction compared to PNG/JPEG.
Source: SP3D04 §1.
Explanation: KTX2 is GPU-native + heavily compressed. Often 5-10x smaller than equivalent JPEG/PNG. Standard for modern web 3D.
Q6 scenario · lod-strategy Customer wants 3D on entry-level mobile (Android 7+, low-RAM devices) AND on premium devices.
Source: SP3D04 §1.
Explanation: LOD = level of detail = multiple polycount versions. Critical for cross-device coverage.
Q7 multiple-choice · analytics Top engagement metric for 3D’s business value?
Source: SP3D04 §4.
Explanation: Activation rate measures whether customers actually engage with 3D. Without this metric, no way to defend 3D’s ROI.
Q8 multiple-choice · handoff-package Which is NOT part of the customer handoff package?
Source: SP3D04 §5.
Explanation: Handoff is models + code + docs + engagement log. PhotoRobot’s internal software stays with PhotoRobot.
Q9 multiple-choice · usdz-conversion Tool of choice for GLB → USDZ conversion?
Source: SP3D04 §3.
Explanation: Apple Reality Converter is official Apple tool. gltf-pipeline for automation. Scale + material verification is mandatory post-conversion.
Q10 multiple-choice · refresh-cycle Why plan for 3D refresh cycle (every 1-2 years for high-value catalogs)?
Source: SP3D04 §6.
Explanation: 3D isn’t fire-and-forget. Standards evolve, devices change, customer sites update. Plan refresh cycle into engagement model.
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