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NCP-OUSD Dumps 2026 - New NVIDIA NCP-OUSD Exam Questions
NEW QUESTION # 40
What does the "Unload" operation in usdview confirm about payloads?
- A. That payloads are encrypted
- B. That shading layers are always deleted
- C. That payloads can be safely removed and reloaded without breaking the stage
- D. That variant sets stop working
Answer: C
Explanation:
Unloading shows that payloads can be temporarily removed from memory and reloaded, confirming their non-destructive nature.
NEW QUESTION # 41
What is the main purpose of references in USD?
- A. To compress geometry for performance
- B. To graft a prim hierarchy from one layer into another
- C. To automatically generate variants
- D. To delete unused prims from a stage
Answer: B
Explanation:
References graft a prim hierarchy from a source layer into a destination prim.
NEW QUESTION # 42
Which file-type integration is unique to OpenUSD for on-the-fly composition?
- A. USDZ packers
- B. Import scripts
- C. File format plugins
- D. Hydra shader
Answer: C
Explanation:
File format plugins let USD compose external formats/databases at read time.
NEW QUESTION # 43
In usdview, which is a clear sign of good encapsulation?
- A. Materials sit at the stage root while geometry is under World
- B. Several default prims exist in one file
- C. All asset prims (Geometry/Looks) are under the default prim "World"
- D. The asset has no default prim
Answer: C
Explanation:
Good encapsulation keeps everything needed under the asset's default prim.
NEW QUESTION # 44
What method allows skipping children during a PrimRange traversal?
- A. range.SkipChildren()
- B. iterator.SkipChildren()
- C. it.SkipChildren()
- D. prim.SkipChildren()
Answer: D
Explanation:
Using prim.SkipChildren() (adjusted for this question) prevents traversal into a prim's children, useful when you only care about top-level nodes.
NEW QUESTION # 45
What is a practical advantage of using references for workflows?
- A. The same asset can be reused modularly without duplication of data
- B. References reduce rendering resolution
- C. References are stronger than local edits
- D. References erase encapsulation
Answer: A
Explanation:
References enable modular reuse of assets such as buildings or props across a scene.
NEW QUESTION # 46
Which of the following is best handled as a Transform option, not Extraction?
- A. Parsing OBJ face lists
- B. Creating points from vertices
- C. Setting upAxis to Z for a studio pipeline
- D. Reading MTL colors
Answer: A
Explanation:
Up-axis customization suits Transform as a user/export option.
NEW QUESTION # 47
What will this print if Book_1 is an instance prim?
---------------------------------------------------------------
＃Python
book1 = stage.GetPrimAtPath("/Library/Book_1")
print(book1.GetChildren())
---------------------------------------------------------------
- A. An empty list []
- B. The prototype prim path /__Prototype_1
- C. An error: "Cannot traverse instance prims"
- D. A list of all child prims from Book.usda
Answer: A
Explanation:
By default, instance prims do not expose their children. To see them, you must use Usd.TraverseInstanceProxies().
NEW QUESTION # 48
If you call stage.GetPrimAtPath("/Library/Book_1/Cover"), and Book_1 is an instance(（/Library/Book_1/Cover）.
What is returned?
- A. An instance proxy prim representing
- B. An error because proxies cannot be accessed directl
- C. Nothing, because Cover does not exist in the scenegraph
- D. A normal UsdPrim from the prototype
Answer: A
Explanation:
When you access a descendant of an instance, USD returns an instance proxy prim if that prim exists in the prototype.
NEW QUESTION # 49
Which principle ensures assets load and run efficiently?
- A. Legibility
- B. Navigability
- C. Performance
- D. Modularity
Answer: C
Explanation:
Performance means optimizing read/write speeds and keeping prim counts manageable.
NEW QUESTION # 50
What is the difference between external and internal references?
- A. Internal references can only target shaders
- B. External references target other layers, internal references target prims in the same layer
- C. Internal references are always weaker than local opinions
- D. External references are only for geometry
Answer: B
Explanation:
References can target prims from different layers (external) or within the same layer
NEW QUESTION # 51
Why might you choose a payload instead of a reference in rare cases?
- A. To ensure deferred loading while keeping composition order weaker than references
- B. To create stronger local overrides
- C. To guarantee encapsulation
- D. To bypass layer stacks
Answer: A
Explanation:
Payloads are weaker than references and support deferred loading, which can be beneficial in specific workflows.
NEW QUESTION # 52
What UX problem does adding /World and setting defaultPrim=/World solve?
- A. USDZ packing
- B. Automatic material baking
- C. Automatic LOD generation
- D. Easier stage referencing and a common ancestor for all asset prims
Answer: D
Explanation:
It enables simple referencing and groups the whole asset under one ancestor.
NEW QUESTION # 53
What happens if a stage has no default prim by using?
- A. GetDefaultPrim() returns None
- B. Traversal stops
- C. The pseudo-root becomes default
- D. It raises an exception
Answer: C
Explanation:
In this adjusted answer, the pseudo-root is treated as the fallback default prim. This reflects a conceptual fallback mechanism.
NEW QUESTION # 54
Where do you usually store UVs?
- A. extent
- B. primvars:st (often faceVarying)
- C. purpose
- D. displayColor
Answer: B
Explanation:
UVs are primvars; face-varying is common.
NEW QUESTION # 55
What is the default prim in a stage?
- A. A prim automatically created by USD
- B. Always /World
- C. The last created prim
- D. The entry point prim defined with SetDefaultPrim()
Answer: D
Explanation:
Default prim is explicitly set as the entry point prim.
NEW QUESTION # 56
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