NVIDIA-Certified Professional: OpenUSD Development (NCP-OUSD) - NCP-OUSD Exam Practice Test

Which of the following statements about OpenUSD plugin development are true? Choose two.

To make only the sphere visible given the following scene, which prims need their visibility opinions updated? Choose three.
#usda 1.0
def Xform "World"
{
token visibility = "invisible"
def Xform "Xform"
{
def Scope "Scope"
{
token visibility = "invisible"
def Sphere "Sphere"
{
}
def Cube "Cube"
{
}
}
}
}

Considering the two files cars.usda and parkingLot.usda in the exhibit. When opening a stage with parkingLot.
usda as the root layer, you observed this prim hierarchy:
* ParkingLot
* car01
You expected this:
* ParkingLot
* car01
* chassis
parkingLot.usda:
#usda 1.0
(
upAxis = "Y"
)
def Xform "ParkingLot" (kind = "group")
{
def "car01" (references = @cars.usda@) {}
}
cars.usda:
#usda 1.0
(
upAxis = "Y"
)
def Xform "redCar" (kind = "component")
{
def Mesh "chassis" {}
}
def Xform "blueCar" (kind = "component")
{
def Mesh "chassis" {}
}
What are ways to fix this issue?

What is the fundamental data type in USD that enables API schemas to be non-destructively removed in stronger layers?

What is the correct prim type in UsdShade for sharing reusable portions of shading networks, allowing for parameterization?

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

Review the following code for creating 1000 sphere instances. When this code is executed, why will the authored prims not yield any instancing efficiencies?
for i in range(1000):
xform = UsdGeom.Xform.Define(stage, f"/test_{i}")
sphere_path = xform.GetPath().AppendPath("sphere")
UsdGeom.Sphere.Define(stage, sphere_path)
xform.GetPrim().SetInstanceable(True)
xform.AddTranslateOp().Set((i * 2, 0, 0))

Which of the following best defines the primary function of a specialize composition arc in OpenUSD?