Question 1

Which of the following sentences are correct when converting between .usda, .usdc, .usd and .usdz files? Choose two.

Options :

A : A .usda file can be converted to a .usdz file using usdcat.

B : A .usda file can be converted to a .usdc file using usdcat.

C : A .usda file can be converted to a .usd file by simply renaming it.

D : A .usda file can be converted to a .usdc file by simply renaming it.

Answer: B,C

Question 2

In OpenUSD, which USDA snippet correctly uses a payload to reference an external asset while allowing deferred loading?

Options :

A : def "Character" (prepend payload = @character.usda@) { }

B : def "Character" { prepend payloads = @character.usd@ }

C : def Xform "Character" (reference = @character.usda@) { }

D : def Xform "Character" (payload = @character.usd@) { }

Answer: A

Question 3

You and your colleague open the same USD layer but one of you observes missing geometry. What could be the reason why?

Options :

A : USD automatically adjusts composition based on available system memory.

B : Instance prototypes are composing to different identifiers.

C : Differently configured asset resolvers are resolving to different versions of the asset.

Answer: C

Question 4

You are debugging a stage where a prim is expected to have opinions from a referenced asset, but those opinions are not appearing in the composed scene. Which of the following are logical things to check to troubleshoot this issue?

Options :

A : Whether a payload has opinions that may be overriding the opinions from the referenced asset.

B : Whether the referenced asset has the valid model kind set to maintain a proper model kind hierarchy.

C : Whether the prim has any variant selections active that might be hiding or overriding the referenced content.

D : Whether the reference path is correct and the referenced asset exists at that location.

Answer: C,D

Question 5

Which of the following are immutable once a USD Stage has been opened? Choose two.

Options :

A : Rules for loading payloads from prims in the stage.

B : Layers that are muted or unmuted in the stage.

C : The path resolver context that is bound to the stage.

D : Variant fallbacks for prims without variant selection in the stage.

Answer: C,D