Fundamentals of Computer Science Assessment (spring)

Which of the following commands is a valid Karel command?

• move

• move;

• move ();

• move()

What makes the following command an invalid Karel command?

• It should end in a colon rather than a semicolon

• The l should be a capital L

• It should start with a capital T

• This command is correct

Which of the following is the correct way to define a turnRight function in Karel?

• function turnRight() { turnLeft(); turnLeft(); turnLeft(); }

• function turnRight() { turnRight(); turnRight(); turnRight(); }

• function turnRight() { turnLeft(); turnLeft(); turnLeft(); }

• turnRight function() { turnLeft(); turnLeft(); turnLeft(); }

Why do we use functions in Karel programs?

• Break down our program into smaller parts

• Avoid repeating code

• Make our program more readable

• All of the above

What's wrong with this code?

• The go function is called twice

• The go function has a syntax error

• The go function has been defined twice

• go is not a command that Karel understands

Which of the following is not a valid condition to go in an if statement for Karel?

• Karel moves until it is on a ball

• Karel moves once if there is no ball present

• Karel moves until it puts down a ball

• Karel checks if there is no ball on the current spot and then moves once

In computer programming, what is a variable?

• A problem in the software

• A sequence of instructions

• An instruction that does not change

• A placeholder for a piece of information that can change

In computer programming, what is an algorithm?

• A problem in the software

• A sequence of instructions

• A computer programming language

• A solution to a programming problem

All programming languages:

• Are text-based

• Are block-based

• Share the same syntax

• Share coding concepts such as looping

What is the purpose of using a for loop in code?

• To do something if a condition is true

• To make programs run faster

• To repeat something a fixed number of times

• To do something while a condition is true