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Grade 3: Computing subject test

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Subject practice test

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

1. A asks to send to isolated D. Map: A connects to R; R connects to B and C; D is isolated. Which route fits?A-R-BA-R-CAlready at ANo drawn route to D

2. Packets arrive 2:A,1:B,3:T. Order by packet number. What message is restored?TABBTABATABT

3. Wanted plant resource. Table: /a=animals; /p=plants; /m=maps; /r=rules. Which address fits?/r/p/a/m

4. Message 13 sent; response refers to message 2. Which specific sending-and-acknowledgment condition does this log show?An acknowledgment identifies a different message; target receipt remains unknownA matching acknowledgment confirms the target receiptSent with no acknowledgment recorded; receipt remains unknownThe target message was not sent

5. Question: which check happened first?. Which field answers the question?MaterialCountLengthDate

6. Entry triangle. Codebook: red/r=RED; blue/b=BLUE; blank=?; anything else=CHECK. Normalize the supplied entry.BLUE?CHECKRED

7. The two supplied rows are ID G/count 2 and ID H/count 2. Policy: one row per item. Which conclusion follows from their equal counts?Count 2 proves G and H are one itemDifferent identified items can share count 2 without a duplicate item IDThe record repeats the same item IDBoth required item IDs are missing

8. Complete fictional box counts are 8, 5 and 4 tiles. What is the total?17 tiles13 tiles18 tiles20 tiles

9. A second Read event. Handlers: Start opens story; Back opens menu; Read plays voice; Help shows steps. What response runs?Open storyOpen menuShow stepsPlay voice

10. Start at Forest and choose home. Table: Menu/play=Forest; Forest/river=River; Forest/home=Menu; River/bridge=Hill. Find the next scene.RiverHillMenuForest

11. Take Lamp; Take Map; Look. Start held=none. What does Look report after the stated events?NoneMapKeyLamp

12. Read event has no voice despite expectation. Classify the paper test.Missing voice responsePasses this caseWrong destinationMissing help response

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