Trifectapp · original learning companion · version 1
Lab evidence workbook
Use this as a learning record. Attempt first, cite the scenario evidence, then compare the explanation. A correct choice without a reason can still hide a gap. These exercises and any self-check do not predict a certification result.
- Open the exercises. Record your answer or prediction in review-journal.csv before reviewing the solution.
- Compare the worked solutions. Record the exact clue or observation, any limitation, and the concept needing attention.
- Choose one next action and a review date. On a later attempt, explain the reasoning in your own words. The worked journal example is fictional and illustrates the method.
CSV files open in a spreadsheet or text editor. Save your own copy to retain edits. Use your browser’s Print command for the HTML files. All exercise content is included locally; source links are optional and require a connection.
Match each file to the existing exercise
All data is fictional and copies the values used in this guide. These files are optional reading and annotation material. They do not replace the guide’s setup commands. Do not run the guide’s code from the evidence folder: create a separate, empty workspace and follow the original setup. The code creates its own lab1, lab2, lab3, lab5 and lab7 folders and stops if a folder already exists.
| Exercise | Companion file | Use it this way |
|---|---|---|
| 1 · Permissions | evidence/lab1-report.txt | Read the harmless report text. Record actual mode bits from the local lab; extracting a ZIP does not reproduce the guide’s permission changes. |
| 2 · File integrity | evidence/lab2-baseline-settings.txt and lab2-changed-settings.txt | Compare the one-line setting, then explain the different digests produced by the guide. The exact UTF-8 bytes end with a newline. |
| 3 · Login timeline | evidence/lab3-events.csv | Sort a working copy by time, count failures and write the three-sentence handover before reading the check. Preserve this original copy. |
| 4 · Segmentation | evidence/lab4-policy.csv and lab4-flow-worksheet.csv | Use the first matching rule for each new connection. Fill the matching rule, decision and reason columns. No firewall is configured. |
| 5 · Restore | evidence/lab5-backup-orders.txt and lab5-current-orders.txt | Predict which order survives before running the guide’s separate-file restore. The files are comparison evidence, not an actual backup system. |
| 6 · Certificate | evidence/lab6-certificate-observations.csv | Record fields from your newly generated local certificate. This pack contains no certificate or private key; follow the guide’s setup and reset. |
| 7 · Rollback | evidence/lab7-before.json and lab7-candidate.json | Compare the fictional settings against logging enabled and at least 30-day retention. Predict rejection, then verify with the guide’s local exercise. |
| 8 · AI trust boundary | evidence/lab8-authorized-request.txt, lab8-retrieved-note.txt and lab8-action-worksheet.csv | Read as tabletop evidence only. Classify the four actions. The hostile text is fictional data, not a command; do not submit it to a connected production assistant. |
Keep each original evidence file unchanged. Make a working copy before annotating, sorting or editing. After each exercise, save your notes and follow that exercise’s reset instructions only for its disposable lab files.
Original Trifectapp practice, not official CompTIA exam questions. This workbook does not predict an exam score. Source: the published guide. Companion prepared November 7, 2026. The saved exercises retain the guide’s existing objective labels; this companion does not independently certify exam coverage.