1. What does qubit placement specify?Where a circuit's quantum information is assigned in the hardwareOnly the order in which circuit gates will runOnly the schedule for preparing Bell pairsThe probabilities of the final measurement outcomes

2. Which situation requires a remote two-qubit operation?Two data qubits occupy the same module and have a usable local interactionTwo gates act at different times on one qubit in a single moduleThe operation's data are held in different modulesA classical result is sent from a module after its quantum work is complete

3. In our round-trip strategy, what happens immediately after a is successfully teleported to B?The original state at A is copied for safekeepingThe requested gate is performed locally with b at Bb must be measured before any gate can runa must immediately return before it can interact with b

4. What are the teleportation resources for one outward-and-return transfer in the taught ideal strategy?One Bell pair and two correction bitsTwo Bell pairs and no correction bitsFour Bell pairs and one correction bitTwo Bell pairs and four correction bits

5. Why should the round-trip cost not be quoted as the cost of every remote gate?Bell pairs are not consumed by any protocolOther protocols and hardware arrangements can use different resourcesAll remote gates can always be performed with classical communication aloneTeleportation uses a randomly chosen number of message bits in this model

6. After teleporting a's state, what happens to its circuit label?The label can remain a while its physical location changesIt must become a new unrelated algorithmic inputIt refers to two copies at different modulesIt must become a classical bit

7. a interacts six times with b and once with c. What is a reasonable first placement to investigate?Place a alone because it has the most interactionsSeparate a and b to make all six gates remoteIgnore all interaction counts and choose solely by label orderPlace a and b together, if capacity and other constraints allow

8. What is a scheduler's main task?Choose only the initial location of each data qubitEstimate only the final output probabilitiesChoose operation times while respecting dependencies and available resourcesReplace all remote operations with independent local measurements

9. When may two independent operations run at the same time?Whenever their names are different, even if they need the same unavailable qubitOnly if they are in the same module, regardless of the networkWhen the hardware supports it and the needed resources do not conflictWhenever both are remote gates, even if one depends on the other's output

10. Why can a probabilistic entanglement link affect the schedule?It makes every successful pair available after exactly one attemptIt makes data storage noise irrelevant during link attemptsIt forces every unrelated local operation to wait until the whole circuit finishesThe required pair may take an uncertain number of attempts to generate

11. Why might generating every Bell pair far in advance be a poor plan?Stored pairs can lose quality while they wait and occupy limited memoryBell pairs cannot exist before an input is measuredAdvance preparation turns entanglement into a classical message immediatelyA pair always improves in fidelity with storage time

12. Which belongs in communication overhead?Only the duration of the requested local two-qubit gateEntanglement preparation, message exchange and time spent waitingOnly the number of data qubits in the original abstract circuitOnly the final readout already required in the original circuit

13. What can be inferred merely from doubling the number of modules?Every circuit will finish in half the timeRemote operations become error-freeClassical coordination is no longer necessaryThere may be more hardware capacity, but a twofold speedup is not guaranteed

14. Which service illustrates independent jobs rather than one networked quantum computation?Two modules use a shared Bell pair to implement an operation between their dataA cloud service runs unrelated circuits on separate processorsA state is teleported between modules during a joint circuitModules exchange feed-forward results for a remote gate

15. In the example, three gates each use a separate outward-and-return journey. How many Bell pairs are consumed?TwoThreeSixTwelve

16. In the example, a travels to B once, participates in three gates and returns once. How many correction bits are sent?FourTwoSixTwelve

17. What condition makes keeping a at B across several gates valid?The required gate order and other dependencies permit it, and the necessary resources existThe compiler is allowed to ignore the requested circuitThe input state is copied and left at A firstAll intermediate measurement outcomes must be 0

18. What happens if the local gate at B entangles the states labelled a and b before a returns?Teleportation must necessarily turn both states into classical bitsb must also be physically transported to AIdeal teleportation of a back to A preserves that joint quantum relationshipThe return transfer creates another independent copy of b

19. What comparison best supports a claim that one distributed plan is better?Only the number of installed modules, regardless of their linksOnly the count of local single-qubit gatesOnly remote-gate count, ignoring duration and qualityThe same task at a stated output-quality target, including total time and resources

20. Does a local gate automatically require no routing or extra work?Yes; every module always supports every pairwise interaction directlyNo; a module's connectivity may require additional local routingYes; local gates never introduce errorsNo; every local gate must instead use an inter-module Bell pair

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