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A developer executes the C# code below, which finds any game objects tagged as "Enemy" in a Start event. But the developer notices that, when executed, FindGameObjectsWithTag returns NULL even though the scene contains objects tagged as "Enemy." What is a possible cause?

GameObject[] MyEnemies = GameObject.FindGameObjectsWithTag("Enemy");

• The objects are on the UI layer.
• The objects are not named "Enemy".
• The objects are deactivated.
• The objects are animated.

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How does the Range C# attribute control the interaction behavior of numerical variables in the Object Inspector?

• It validates the variable values through a text box widget.
• It restricts the variable values using a slider widget.
• It restricts the variable values using a color picker widget.
• It presents valid options in a drop-down list.

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Which feature generates binary tree data to optimize camera rendering in a scene?

• Occlusion Culling
• navigation mesh
• render textures
• Profiler

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Draw call batching is a graphics optimization technique. What is one way to facilitate this?

• keeping meshes close together in a scene
• hiding meshes that are distant from the camera
• sharing the same material among as many meshes as possible
• developing an imposter system that substitutes billboards for meshes

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IEnumerator objects are commonly encountered when using which scripting feature?

• coroutines
• events
• classes
• functions

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