AP Computer Science Principles
Vocabulary | 182 Questions and Verified
Answers | 100% Correct | Grade A
(2026/2027)
This AP Computer Science Principles (CSP) exam (70% of score) features a total of 182
multiple-choice questions——focused on computational thinking rather than specific language
syntax. Key topics include algorithms, data abstraction, networking (internet protocols),
cybersecurity, and algorithm efficiency.
Key AP CSP Vocabulary Definitions (Sample 182-Set Concepts):
• Algorithm: A generalized, conceptual solution to a problem that can be implemented
in a computer program.
• API (Application Program Interface): A set of routines, protocols, and tools for
constructing software applications.
• Binary: A base-2 number system (0s and 1s) used at the lowest level of abstraction to
represent data and perform calculations.
• Metadata: Data that describes other data.
• Abstraction: The process of reducing complexity to focus on relevant concepts.
• Internet Protocol (IP): A set of rules governing the format of data sent over the
Internet.
• Lossless/Lossy Compression: Lossless retains all original data; lossy reduces data size
by permanently eliminating less important information.
• DNS (Domain Name System): The system for converting human-readable names
(e.g., example.com) into numeric IP addresses.
Exam Structure and Content:
• Content Focus: 25%–33% covers coding problems (variables, loops, procedures).
• Internet/Network Concepts: Includes IP addressing, packets, routing, and
cybersecurity.
Quiz_________________?
,Algorithm -
Answer
At its core, an algorithm is really just a generalized, conceptual solution to a problem that can
later be implemented in some real-world form like a computer program.
Quiz_________________?
Application Program Interface -
Answer
Application program interface (API) is a set of routines, protocols, and tools for constructing
software applications. An API specifies how software components should interact. In addition,
APIs are used when programming graphical user interface (GUI) components.
Quiz_________________?
Binary -
Answer
A numeric system of base 2 that only uses combinations of the digits zero and one; this is used
in one of the lowest levels of abstraction. Computers operate in binary, as they store data and
perform calculations using only zeros and ones. While a single binary digit can be used to
represent True (1) or False (0) in boolean logic, multiple binary digits can be used in
conjunction to store large numbers and perform complex functions. Computers translate
between binary and what you actually work with such as numbers and text.
Quiz_________________?
Binary Search -
Answer
A search algorithm that locates the position of a target value within a sorted array by
repeatedly dividing the search interval in half; can only be used when the list is sorted. Because
of its divide-and-conquer approach, the amount of work required to find an item grows much
,more slowly with Binary Search than with Sequential Search. In fact, with this logarithmic
behavior
Quiz_________________?
Boolean Function* -
Answer
Any function based on the operations AND, OR, and NOT, and whose elements are from the
domain of Boolean algebra. A function whose arguments, as well as the function itself, assume
values from a two-element set (usually {0,1})
Quiz_________________?
Central Processing Unit -
Answer
CPU, or processor, is the brains of the computer where most calculations take place. Contains
the circuitry necessary to interpret and execute program instructions.
Quiz_________________?
Computational Artifact -
Answer
Something created by a human using a computer and can be, but is not limited to, a program,
an image, an audio, a video, a presentation, or web page file
Quiz_________________?
Cryptography -
Answer
, The science of coding and decoding messages in order to keep them secure. Coding takes place
using a key that ideally is known only by the sender and intended recipient of the message.
Quiz_________________?
Floating Point Numbers -
Answer
As the name implies, floating point numbers are numbers that contain floating decimal points.
Examples include, the numbers 5.5, 0.001, and -2,345.6789. Numbers without decimal places
are called integers. Computers recognize real numbers that contain fractions as floating point
numbers.
Quiz_________________?
Hexadecimal -
Answer
Hexadecimal describes a base-16 number system. That is, it describes a numbering system
containing 16 sequential numbers as base units (including 0) before adding a new position for
the next number. The hexadecimal numbers are 0-9 and then use the letters A-F. Used to
represent digital data because it utilizes fewer digits than binary.
Quiz_________________?
Integers -
Answer
An integer is a whole number (not a fraction) that can be positive, negative, or zero. In
computer science, an integer is a datum of integral data type, a data type that represents some
finite subset of the mathematical integers. Integral data types may be of different sizes and may
or may not be allowed to contain negative values.
Vocabulary | 182 Questions and Verified
Answers | 100% Correct | Grade A
(2026/2027)
This AP Computer Science Principles (CSP) exam (70% of score) features a total of 182
multiple-choice questions——focused on computational thinking rather than specific language
syntax. Key topics include algorithms, data abstraction, networking (internet protocols),
cybersecurity, and algorithm efficiency.
Key AP CSP Vocabulary Definitions (Sample 182-Set Concepts):
• Algorithm: A generalized, conceptual solution to a problem that can be implemented
in a computer program.
• API (Application Program Interface): A set of routines, protocols, and tools for
constructing software applications.
• Binary: A base-2 number system (0s and 1s) used at the lowest level of abstraction to
represent data and perform calculations.
• Metadata: Data that describes other data.
• Abstraction: The process of reducing complexity to focus on relevant concepts.
• Internet Protocol (IP): A set of rules governing the format of data sent over the
Internet.
• Lossless/Lossy Compression: Lossless retains all original data; lossy reduces data size
by permanently eliminating less important information.
• DNS (Domain Name System): The system for converting human-readable names
(e.g., example.com) into numeric IP addresses.
Exam Structure and Content:
• Content Focus: 25%–33% covers coding problems (variables, loops, procedures).
• Internet/Network Concepts: Includes IP addressing, packets, routing, and
cybersecurity.
Quiz_________________?
,Algorithm -
Answer
At its core, an algorithm is really just a generalized, conceptual solution to a problem that can
later be implemented in some real-world form like a computer program.
Quiz_________________?
Application Program Interface -
Answer
Application program interface (API) is a set of routines, protocols, and tools for constructing
software applications. An API specifies how software components should interact. In addition,
APIs are used when programming graphical user interface (GUI) components.
Quiz_________________?
Binary -
Answer
A numeric system of base 2 that only uses combinations of the digits zero and one; this is used
in one of the lowest levels of abstraction. Computers operate in binary, as they store data and
perform calculations using only zeros and ones. While a single binary digit can be used to
represent True (1) or False (0) in boolean logic, multiple binary digits can be used in
conjunction to store large numbers and perform complex functions. Computers translate
between binary and what you actually work with such as numbers and text.
Quiz_________________?
Binary Search -
Answer
A search algorithm that locates the position of a target value within a sorted array by
repeatedly dividing the search interval in half; can only be used when the list is sorted. Because
of its divide-and-conquer approach, the amount of work required to find an item grows much
,more slowly with Binary Search than with Sequential Search. In fact, with this logarithmic
behavior
Quiz_________________?
Boolean Function* -
Answer
Any function based on the operations AND, OR, and NOT, and whose elements are from the
domain of Boolean algebra. A function whose arguments, as well as the function itself, assume
values from a two-element set (usually {0,1})
Quiz_________________?
Central Processing Unit -
Answer
CPU, or processor, is the brains of the computer where most calculations take place. Contains
the circuitry necessary to interpret and execute program instructions.
Quiz_________________?
Computational Artifact -
Answer
Something created by a human using a computer and can be, but is not limited to, a program,
an image, an audio, a video, a presentation, or web page file
Quiz_________________?
Cryptography -
Answer
, The science of coding and decoding messages in order to keep them secure. Coding takes place
using a key that ideally is known only by the sender and intended recipient of the message.
Quiz_________________?
Floating Point Numbers -
Answer
As the name implies, floating point numbers are numbers that contain floating decimal points.
Examples include, the numbers 5.5, 0.001, and -2,345.6789. Numbers without decimal places
are called integers. Computers recognize real numbers that contain fractions as floating point
numbers.
Quiz_________________?
Hexadecimal -
Answer
Hexadecimal describes a base-16 number system. That is, it describes a numbering system
containing 16 sequential numbers as base units (including 0) before adding a new position for
the next number. The hexadecimal numbers are 0-9 and then use the letters A-F. Used to
represent digital data because it utilizes fewer digits than binary.
Quiz_________________?
Integers -
Answer
An integer is a whole number (not a fraction) that can be positive, negative, or zero. In
computer science, an integer is a datum of integral data type, a data type that represents some
finite subset of the mathematical integers. Integral data types may be of different sizes and may
or may not be allowed to contain negative values.
