AP Computer Science Principles MCQ Practice Session

This video tutorial by Mrs. Juliolano from Hamilton Southeastern High School reviews key concepts in AP Computer Science Principles. It covers the use of an exam reference sheet, undecidable problems, procedure analysis, modifying procedures, search procedures, replacing values in spreadsheets, simulating spinners, bonus round simulations, and algorithm efficiency. The video also discusses when simulations are more beneficial than calculations and identifies scenarios where simulations are least beneficial.

What is the purpose of the AP pseudocode reference sheet during the exam?

• To confuse the students with complex algorithms

• To provide actual code for copying

• To list all possible exam questions

• To guide students with standardized pseudocode

How does the AP Computer Science Principles exam test students?

• Through essays on theoretical concepts

• By practical programming tasks

• Oral examinations on programming languages

• Using multiple choice questions based on pseudocode

How can a problem be identified as undecidable?

• By writing an efficient algorithm

• By using a heuristic

• By solving it with multiple algorithms

• By proving no algorithm can solve it

What does the procedure 'do something' return when called with two numbers?

• A random number

• The sum of the two numbers

• Both numbers sequentially

• The first number

Which procedure would be most useful for replacing negative values in a spreadsheet column?

• Identify if any negative values exist

• Locate first negative value

• Count negative values

• Find minimum value

What is a true statement about using a pre-written search procedure in a program?

• It can be used without knowing how it works

• It involves understanding the internal workings

• It doesn't return any output

• It requires modifying the procedure

In which scenario is using a simulation more beneficial than performing a calculation?

• Determining past sales data

• Investigating environmental changes

• Tracking high scores

• Calculating average grades

Which algorithm shows a reasonable time efficiency based on the number of steps it takes?

• Algorithm B and C

• Algorithm A and B

• Algorithm C and D

• Algorithm A and D

What is a limitation of algorithms in problem-solving?

• All problems can be solved using algorithms

• Algorithms function independently of programming languages

• Some problems cannot be solved by any algorithm

• Algorithms can solve problems without data

Which of the following is least likely to benefit from a simulation?

• Testing changes in car designs

• Studying effects of weather on health

• Analyzing robot efficiency in production

• Determining the most sold item last month