2015 Practice Exam MCQ

I scored a 24/39 on the 2015 College Board Practice Exam MCQ. I was disappointed at the score I got but I know that it was mostly just small mistakes. I know I need to review the college board and team teaches again. In the future I should take my time and think about each question thoroughly so I can prepare myself for the AP Exam.

Current Break Down

I had problems with some of the writing classes and a little but with arrays.

Question 1:

• The method aims to count numbers that evenly divide the input value
• The critical part is determining the correct condition for divisibility
• Understanding modulo operation is key to solving this problem
• Carefully consider what makes a number a divisor
• Use the modulo operator to check if a number divides evenly
• Understand the difference between “divides” and “is divided by”
• Think through edge cases like 1 and the input number itself
• Test the method with various input values to verify correct behavior

Question 4:

• The method is designed to find the largest value in an array
• Initializing the maximum value correctly is crucial
• Understanding how to compare and update the maximum value
• Be cautious about initial maximum value selection
• Consider scenarios with negative numbers
• Verify the method works with different array compositions
• Think about how to handle arrays with all negative values
• Ensure proper comparison logic in the loop

Question 13:

• Not carefully tracing the method’s logic step by step
• Misunderstanding how the increment works
• Not paying attention to how each iteration changes the array
• Trace the method manually on paper
• Draw out each iteration of the loop

Question 22:

• Misunderstanding array flattening
• Not recognizing different ways to access nested array elements
• Practice working with nested arrays
• Learn different methods of array traversal
• Understand the difference between 1D and 2D array structures
• Experiment with array manipulation techniques

Question 24:

• Confusing method signatures
• Not understanding what makes a method signature unique
• Overlooking parameter type differences
• Study method overloading rules carefully
• Pay close attention to parameter types and order
• Practice creating methods with distinct signatures
• Understand how Java distinguishes between methods

Question 26:

• Misunderstanding method execution flow
• Not tracking parameter modifications
• Overlooking subtle method interactions
• Carefully trace each step of method execution
• Understand how methods modify input parameters
• Pay close attention to method side effects
• Practice breaking down complex method calls
• Visualize how data changes throughout the process

Question 28:

• Misinterpreting sorting algorithm logic
• Failing to track comparison iterations
• Not understanding nested loop mechanics
• Learn sorting algorithm fundamentals
• Practice manual tracing of sorting steps
• Draw out algorithm progression
• Understand how comparison and swap operations work
• Recognize patterns in different array configurations

Question 30:

• Misunderstanding pricing tier conditions
• Incorrectly applying pricing rules
• Not following logical condition precedence
• Study pricing structure carefully
• Test scenarios with different input quantities
• Create mental model of condition hierarchy
• Practice writing conditional logic
• Verify conditions cover all possible scenarios
• Understand how nested conditions interact

Question 31:

• Misunderstanding nested loop logic
• Not tracking row and column modifications
• Overlooking modulo and conditional logic
• Trace code execution step by step
• Understand how nested loops interact
• Pay attention to condition val % 2 == 1
• Visualize board transformation carefully
• Practice drawing out array modifications

Question 32:

• Misinterpreting method requirements
• Not understanding how to filter students by major
• Overlooking method implementation details
• Carefully read method description
• Understand how to compare student majors
• Learn to use conditional logic in loops
• Practice working with object collections
• Focus on accumulating sum and count correctly

Question 33:

• Not understanding maximum finding algorithms
• Overlooking edge cases
• Misinterpreting comparison logic
• Understand different initialization approaches
• Learn to handle first iteration scenarios
• Practice tracing maximum finding algorithms
• Consider array with single or multiple elements
• Understand the importance of initialization

Question 34:

• Correct implementation requires precise list traversal
• Proper handling of comma insertion is crucial
• Understand the exact requirements of the method
• Carefully track how elements are added to the result string
• Ensure commas are only added between words, not after the last word
• Test the method with various input scenarios to verify correct behavior

Question 35:

• Correctly calculating the midpoint
• Handling multiple occurrences of the target value
• Managing array boundaries
• Returning the correct index
• Carefully implement the midpoint calculation
• Ensure proper comparison with target value
• Handle edge cases like duplicate values
• Verify the method works with different array sizes and target positions

Question 37:

• Respecting the starting index parameter
• Correctly building the result string
• Handling different array lengths
• Ensuring proper word concatenation
• Carefully design the loop structure
• Understand the exact requirements of word concatenation
• Test with various input arrays and starting indices
• Verify the method produces the expected output

Question 38:

• This is a recursive method with multiple conditional branches
• Understanding the base and recursive cases is critical
• The method involves complex index and value manipulations
• Break down the method’s logic step by step
• Trace the method’s execution with sample inputs
• Understand how recursion works in this context
• Pay attention to the method’s parameters and their roles
• Practice visualizing recursive method calls