Grade 11: Computing
Start with a unit whose prerequisites fit. Work through the lessons, use the study guide to review, and try the new cases before continuing.
- Unit 1 · 4 lessons
Validate, Join and Summarize Records
Use stable keys, reject duplicate identifiers, preserve missing matches and aggregate related rows.
Before you begin: Read tables and unique identifiers; count items; distinguish an empty group from a missing value.
- Unit 2 · 4 lessons
Design a Reliable Request Workflow
Two increment requests read count 5 and both write 6. Explain the defect, a preservation strategy and a bounded retry policy with delays 1,2,4 seconds.
Before you begin: Understand server validation, authorization and atomic changes.
- Unit 3 · 4 lessons
Distinguish Security and Privacy Boundaries
A private service sends detailed answers to an external provider and supplies a signed report. Explain the data-flow/privacy question and what a valid signature does not establish.
Before you begin: Understand authentication, authorization and data purposes.
- Unit 4 · 4 lessons
Plan Inclusive and Reviewable Software
Write acceptance criteria for saving/returning and private-account separation. Describe a synthetic test and a rollback that preserves current records.
Before you begin: Read a requirement and distinguish test environments.
Check what you can explain
The subject test uses additional supplied cases across these units. Its feedback links back to the relevant lessons. Use it to plan practice; a score on these questions is not a school grade or proof of complete subject mastery.
Open the subject test