Microsoft
98-374 · Question #60
98-374 Question #60: Real Exam Question with Answer & Explanation
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Question
You plan to write an XNA code segment in C# to reverse the direction of the ball when it collides with a screen boundary. You write the following code segment. When you run the code, you discover that sometimes the ball gets stuck at the boundary resulting in a ping-pong effect back and forth. What error causes the ping-pong effect?
Exhibit
Options
- AThe failure of the code to speed up the ball while it is reversing the direction
- BThe failure of the code to reset the ball's position to the boundary on collision
- CThe failure of the code to wait one frame before reversing the direction of the ball
- DThe failure of the code due to accumulated math errors that break the collision detection
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