Georgia GACE Computer Science (P-12) Assessment Practice Test
The Georgia GACE Computer Science (P-12) Assessment practice page covers computing concepts that can support instruction across grade levels. The practice bank includes questions on programming constructs, data representation, databases, networks, cybersecurity, algorithms, and accessible web content. These topics connect abstract ideas—such as how data is encoded or transmitted—to choices students and educators encounter when building or evaluating digital systems.
Exam overview
About the Georgia GACE Computer Science (P-12) Assessment Exam
Computer science teaching draws on the ability to trace program behavior, select suitable data structures, and explain how software organizes information. Practice scenarios may ask you to distinguish a queue’s first-in, first-out behavior from other structures, identify a database field that can uniquely identify records, or reason about the color range represented by RGB values. Network and security questions involve packet addressing, encrypted connections, and safe responses to suspicious files. Other items connect computing to classroom-relevant implementation, including reusable code and HTML alternatives that convey image meaning to screen-reader users. When working through a scenario, identify the system’s purpose, the relevant computing principle, and the consequences of each choice; this supports clear explanations of both technical decisions and their practical effects.
Sample Practice Questions
Review a selection from this exam's published US Practice Tests practice bank.
A program stores a color as three 8-bit RGB values. What is the maximum number of distinct colors this representation can encode?
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Correct answer: CEach of the three color channels has 2⁸ = 256 possible values. The total number of combinations is 256 × 256 × 256 = 2²⁴ = 16,777,216.
A device uses a sensor to report temperature as a numeric value. In a basic input-process-output model, what role does the sensor reading play?
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Correct answer: AA sensor reading supplies data to the system, so it is input. Processing transforms or analyzes data, output communicates results, and storage retains data for later use.
In a relational database, a table contains one row for each student. Which field is the best candidate for a primary key?
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Correct answer: CA primary key uniquely identifies each row. A student identification number is a strong candidate if it is unique and reliably assigned; names, grade levels, and school names may be shared.
A school website accepts a password over an unencrypted public Wi-Fi connection. Which change most directly helps protect the password while it travels between the browser and the website?
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Correct answer: AHTTPS uses TLS to encrypt communication between the client and server, helping protect credentials in transit. It does not by itself address every security risk, such as weak passwords or compromised endpoints.
A developer wants to keep a project's source-code changes organized and reviewable over time. Which tool is designed for this purpose?
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Correct answer: AVersion control records changes to files over time, supports collaboration, and can help restore or compare earlier versions. The other tools serve different purposes.
A school network assigns devices addresses so data can be directed to the intended device. Which protocol is primarily responsible for providing these network addresses and routing packets between networks?
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Correct answer: AInternet Protocol (IP) provides addressing and supports routing packets across networks. HTML describes webpage structure, USB is a device connection standard, and SMTP is used for sending email.
A program maintains a queue of print jobs. Which operation should it perform to process jobs in the order they were submitted?
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Correct answer: BA queue follows first-in, first-out (FIFO) order, so the earliest submitted print job is processed first.
How to use this practice test
Access is free. A session draws up to 20 random questions from the 50-question practice bank and displays results after you finish. Use the questions to identify concepts that need another pass, then review why a data structure, security measure, programming construct, or representation fits the scenario. Results reflect this practice session, not an official assessment score.
Preparation tips
- Trace short code examples by recording variable values and the order in which statements execute; compare repeated instructions with a reusable function or procedure.
- Practice converting between bits, bytes, and RGB channel values, and explain how the number of bits limits the possible representations.
- For database scenarios, distinguish a primary key from descriptive fields by testing whether a candidate value uniquely identifies every row.
- Compare network addressing and packet routing with transport encryption; identify which protects information in transit and which helps direct data.
- Review HTML image alternatives and security scenarios by explaining how each choice affects screen-reader access or protects a user’s credentials and device.