| 33: Which of the following can be used as a replacement for < MISSING STATEMENT > so that the code segment works as intended? |
REPEAT 4 TIMES |
REPEAT 2 TIMES |
The loop that repeats four times returns the robot to its starting position. The three lines of code that follow the loop move the robot one row up and leave it facing right. When this has been repeated twice, the robot is in the gray square. |
| 34: Which of the following code segments can be used to move the robot to the gray square? |
 |
 |
The robot moves forward three spaces, turns to the left, moves forward two spaces, turns to the right, and moves forward three spaces. My left was the robot’s right |
| 49: A city planner is using simulation software to study crowd flow out of a large arena after an event has ended. The arena is located in an urban city. Which of the following best describes a limitation of using a simulation for this purpose? |
The model used by the simulation software cannot be modified once the simulation has been used. |
The model used by the simulation software often omits details so that it is easier to implement. |
Simulations are limited by the model that is used. There may be many reasons for using a simplified model, including ease of implementation. Incorrect because The model used by a simulation can be modified, both before and after running the simulation. In fact, one of the benefits of using a simulation is the ease of modification. |
