AP CSP Questions and Answers
Rated A+
What is the difference between a list and a dictionary in Python?
A list is an ordered collection of items that can be accessed by their index, whereas a
dictionary is an unordered collection of key-value pairs where values are accessed using unique
...
AP CSP Questions and Answers
Rated A+
What is the difference between a list and a dictionary in Python?
✔✔ A list is an ordered collection of items that can be accessed by their index, whereas a
dictionary is an unordered collection of key-value pairs where values are accessed using unique
keys.
How does binary search differ from linear search in terms of efficiency?
✔✔ Binary search is more efficient than linear search, especially for large datasets, because it
reduces the search space by half with each step. Binary search requires the dataset to be sorted
and has a time complexity of O(log n), while linear search has a time complexity of O(n) and
does not require a sorted dataset.
What is a variable, and why is it important in programming?
1
,✔✔ A variable is a storage location identified by a name that holds data that can be used and
manipulated within a program. Variables are important because they allow programs to store,
retrieve, and modify data dynamically.
How does abstraction help in managing complexity in programming?
✔✔ Abstraction helps manage complexity by hiding detailed implementation and exposing only
the necessary parts of a system. It allows programmers to work with simplified models or
interfaces, making it easier to understand and interact with complex systems.
What is the significance of algorithmic efficiency in computer science?
✔✔ Algorithmic efficiency is significant because it determines how quickly and efficiently an
algorithm performs its task relative to input size. Efficient algorithms can handle larger datasets
and more complex operations within practical time limits, which is crucial for optimizing
performance and resource usage.
What is the role of conditional statements in programming?
2
, ✔✔ Conditional statements control the flow of execution in a program by executing different
code blocks based on whether specified conditions are true or false. They enable decision-
making and branching within programs.
What does it mean for a program to be "bug-free," and why is this important?
✔✔ A program being "bug-free" means it functions correctly without errors or unintended
behaviors. This is important because bugs can lead to incorrect results, crashes, or security
vulnerabilities, affecting the reliability and usability of the software.
How do you interpret the output of a sorting algorithm?
✔✔ The output of a sorting algorithm is a list of elements arranged in a specified order, such as
ascending or descending. Interpreting the output involves verifying that the elements are
correctly ordered according to the chosen sorting criteria.
What is a data structure, and why is it important in programming?
3
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