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Grade 11: Computing subject test

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Choose an answer for each problem. Explain your method on paper, then use the feedback to decide what to revisit.

1. Reject a requester with no edit permission. Which check or operation is described?Parse structureValidate inputPerform permitted writeAuthorize access

2. Same event ID is recorded only once by the explicit model. Which specific repeated-request mechanism does the supplied model describe?Each request applies another addition or creation; repetition can change stored stateThe repeated effect is not documented by the supplied modelExplicit duplicate-ID checking applies a matching event ID at most onceThe same target state is assigned each time; duplicate-ID handling is not stated

3. Requests sent but final state was never checked. Two intended increments start from 5. Classify the final evidence.No writes happenedOutcome unverifiedBoth increments retainedLost update

4. Policy allows three retry delays of 5,10,20 seconds after the initial request. Total delay budget, excluding request time?35 seconds3 seconds15 seconds36 seconds

5. Both file and claimed digest come from the same untrusted message. Which mechanism or evidence is stated?Hash digestEncryption with decryption keyVerified signature contextUntrusted expected digest

6. A mathematically valid signature accompanies an unproven factual claim. Which role or limit is described?Public verification keyTrusted key associationContent truth separatePrivate signing key

7. Expired records remain without a stated reason. Which concern is described?Unrelated secondary useExcessive retentionUnauthorized access riskUnnecessary collection

8. A public report exposes its contents to all visitors. Which destination or boundary is described?Public audienceLocal device storageService serverExternal provider

9. A private record must stay separated across synthetic users. Which criterion addresses the need?Keyboard task completesSaved record returnsEquivalent text informationUnauthorized access rejected

10. Rollback candidate predates an essential privacy fix. Classify the stated version situation.Conflicting same-area editsCurrent revision verifiedOlder snapshot would lose changesCompatible separate edits

11. Phone journey has not been performed. Which scope was actually exercised?Live public checkUnavailable checkBuilt synthetic testPreview interaction

12. Current learner records would be overwritten by sample rows. Which rollback plan is described?Destructive data replacementCompatible application rollbackNeeds compatibility investigationNo verified checkpoint

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