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Google Professional Cloud Architect Practice Test 16

Question 150

A broadcaster must transfer several petabytes from a limited-bandwidth archive site, and bulk upload over its WAN would take months. Which limitation must be considered before claiming the issue is fully resolved?

  1. Physical transfer still requires access control and complete cryptographic integrity checks
  2. Physical appliances remove the need to encrypt or audit transported files
  3. Checksum verification is optional when a courier confirms delivery
  4. A successful courier handoff proves target object integrity

Explanation

Correct Answer

A:

Physical transfer still requires access control and complete cryptographic integrity checks. This caution prevents extrapolating beyond the specific evidence or product boundary. Large data movement is constrained by bandwidth, transfer logistics and security. The unresolved point should be tested using measured uplink bandwidth, data volume, encryption and transfer completion estimates rather than assuming a working interface proves full compliance or resilience.

Incorrect Answers

B:

Physical appliances remove the need to encrypt or audit transported files. This limitation is framed as a blanket exception, but the case requires a different, narrower caution. The relevant boundary is that physical transfer still requires access control and complete cryptographic integrity checks. Large data movement is constrained by bandwidth, transfer logistics and security. Inspect measured uplink bandwidth, data volume, encryption and transfer completion estimates.

C:

Checksum verification is optional when a courier confirms delivery. The proposed claim mistakes an incomplete signal or product feature for a universal guarantee. The relevant boundary is that physical transfer still requires access control and complete cryptographic integrity checks. Large data movement is constrained by bandwidth, transfer logistics and security. Inspect measured uplink bandwidth, data volume, encryption and transfer completion estimates.

D:

A successful courier handoff proves target object integrity. This claim exceeds the evidence and ignores an important risk or operational dependency. The relevant boundary is that physical transfer still requires access control and complete cryptographic integrity checks. Large data movement is constrained by bandwidth, transfer logistics and security. Inspect measured uplink bandwidth, data volume, encryption and transfer completion estimates.

Question 151

A company migrates licensed enterprise applications with vendor restrictions on host assignment and specific CPU counts. Which assessment is best supported by the business and technical facts?

  1. Successful VM startup demonstrates unrestricted license mobility
  2. Technical VM compatibility does not prove that migration preserves license compliance or economics
  3. Cloud software licensing is completely independent of CPU entitlement counts
  4. A cloud migration invalidates every current license so further entitlement analysis is unnecessary

Explanation

Correct Answer

B:

Technical VM compatibility does not prove that migration preserves license compliance or economics. The specified situation supports this bounded diagnosis: Migration strategy includes legal and financial architecture constraints. It is stronger than an inference based on one convenience metric. Compare vendor contract restrictions, entitlement inventory and target vCPU plans to the observed workload before choosing a final architecture.

Incorrect Answers

A:

Successful VM startup demonstrates unrestricted license mobility. This interpretation substitutes a weaker proxy or adjacent explanation for the observed architectural failure. Migration strategy includes legal and financial architecture constraints. The better-supported diagnosis is technical VM compatibility does not prove that migration preserves license compliance or economics. Review vendor contract restrictions, entitlement inventory and target vCPU plans before closing the analysis.

C:

Cloud software licensing is completely independent of CPU entitlement counts. This claim relies on a condition the scenario has not demonstrated and misses the controlling design constraint. Migration strategy includes legal and financial architecture constraints. The better-supported diagnosis is technical VM compatibility does not prove that migration preserves license compliance or economics. Review vendor contract restrictions, entitlement inventory and target vCPU plans before closing the analysis.

D:

A cloud migration invalidates every current license so further entitlement analysis is unnecessary. The option asserts an unsupported conclusion about causation, access, consistency, or resilience. Migration strategy includes legal and financial architecture constraints. The better-supported diagnosis is technical VM compatibility does not prove that migration preserves license compliance or economics. Review vendor contract restrictions, entitlement inventory and target vCPU plans before closing the analysis.

Question 152

A company migrates licensed enterprise applications with vendor restrictions on host assignment and specific CPU counts. Which evidence set would most directly confirm or challenge the suspected architectural issue?

  1. A VM compatibility report without vendor entitlement and cost terms
  2. VM image compatibility without license transfer and cloud hardware terms
  3. Host compatibility tests without publisher license conditions
  4. Vendor contract restrictions, entitlement inventory and target vCPU plans

Explanation

Correct Answer

D:

Vendor contract restrictions, entitlement inventory and target vCPU plans. These artifacts connect the requirement and the observed system behavior. Migration strategy includes legal and financial architecture constraints. Their value is the ability to test the proposed cause against the actual principal, configuration, transaction, or failure event. A working binary cannot establish entitlement for the target host model.

Incorrect Answers

A:

A VM compatibility report without vendor entitlement and cost terms. The proposed record is useful background, but it leaves the decisive failure mode or authorization boundary unverified. The proposed evidence or intervention explicitly leaves out vendor entitlement and cost terms; that omission matters under the stated requirement. The discriminating evidence is vendor contract restrictions, entitlement inventory and target vCPU plans. Migration strategy includes legal and financial architecture constraints.

B:

VM image compatibility without license transfer and cloud hardware terms. This artifact is incomplete for the business or technical requirement and could be green while the failure persists. The proposed evidence or intervention explicitly leaves out license transfer and cloud hardware terms; that omission matters under the stated requirement. The discriminating evidence is vendor contract restrictions, entitlement inventory and target vCPU plans. Migration strategy includes legal and financial architecture constraints.

C:

Host compatibility tests without publisher license conditions. This observation lacks a causal check of the principal, source, dependency, or tested outcome in this scenario. The proposed evidence or intervention explicitly leaves out publisher license conditions; that omission matters under the stated requirement. The discriminating evidence is vendor contract restrictions, entitlement inventory and target vCPU plans. Migration strategy includes legal and financial architecture constraints.

Question 153

A company migrates licensed enterprise applications with vendor restrictions on host assignment and specific CPU counts. Which next design or operational action best satisfies the stated constraints?

  1. Rehost licensed Windows images to compatible VMs and assume existing hardware licenses automatically cover all new instances
  2. Migrate all VMs without validating per-core or per-host license rights
  3. Increase vCPU counts during migration without examining per-core licensing
  4. Assess license mobility and total cost before selecting machine images and VM sizing

Explanation

Correct Answer

D:

Assess license mobility and total cost before selecting machine images and VM sizing. The recommended action treats the decision-driving constraint, because migration strategy includes legal and financial architecture constraints. The response needs approved ownership, change control, and a regression or recovery path. Its success criterion is that the migrated application meets functional tests with documented licensing rights.

Incorrect Answers

A:

Rehost licensed Windows images to compatible VMs and assume existing hardware licenses automatically cover all new instances. This intervention is incomplete or acts on the adjacent symptom, leaving the material requirement unresolved. Migration strategy includes legal and financial architecture constraints. The stronger intervention is to assess license mobility and total cost before selecting machine images and VM sizing. Verify that the migrated application meets functional tests with documented licensing rights.

B:

Migrate all VMs without validating per-core or per-host license rights. This is a plausible operational shortcut but it fails a required security, compatibility, latency, or recovery constraint. The proposed evidence or intervention explicitly leaves out validating per-core or per-host license rights; that omission matters under the stated requirement. Migration strategy includes legal and financial architecture constraints. The stronger intervention is to assess license mobility and total cost before selecting machine images and VM sizing. Verify that the migrated application meets functional tests with documented licensing rights.

C:

Increase vCPU counts during migration without examining per-core licensing. This approach can create a false impression of progress without addressing the controlling mechanism. The proposed evidence or intervention explicitly leaves out examining per-core licensing; that omission matters under the stated requirement. Migration strategy includes legal and financial architecture constraints. The stronger intervention is to assess license mobility and total cost before selecting machine images and VM sizing. Verify that the migrated application meets functional tests with documented licensing rights.

Question 154

A company migrates licensed enterprise applications with vendor restrictions on host assignment and specific CPU counts. Which observation most convincingly demonstrates the intended control or service outcome?

  1. Applications run but vendor licensing exposure remains unresolved
  2. Performance improves but total license liability exceeds budget
  3. CPU sizing remains valid but license cost exceeds the approved estimate
  4. The migrated application meets functional tests with documented licensing rights

Explanation

Correct Answer

D:

The migrated application meets functional tests with documented licensing rights. This is the relevant business or technical outcome, not just evidence that a configuration was deployed. Migration strategy includes legal and financial architecture constraints. Validate it in a representative failure, performance, authorization, or data-quality test while retaining the original acceptance criteria.

Incorrect Answers

A:

Applications run but vendor licensing exposure remains unresolved. This result is an indirect activity or health signal; it can occur while the failure remains. The outcome to establish is that the migrated application meets functional tests with documented licensing rights. Migration strategy includes legal and financial architecture constraints.

B:

Performance improves but total license liability exceeds budget. This favorable proxy does not test the complete service, identity, cost, or transaction boundary at issue. The outcome to establish is that the migrated application meets functional tests with documented licensing rights. Migration strategy includes legal and financial architecture constraints.

C:

CPU sizing remains valid but license cost exceeds the approved estimate. The observation leaves a known violation or untested dependent path and therefore cannot prove remediation. The outcome to establish is that the migrated application meets functional tests with documented licensing rights. Migration strategy includes legal and financial architecture constraints.

Question 155

A company migrates licensed enterprise applications with vendor restrictions on host assignment and specific CPU counts. Which limitation must be considered before claiming the issue is fully resolved?

  1. A virtual machine image contains transferable software licensing rights
  2. License compliance is ensured solely by possessing an installation media copy
  3. All Windows applications have unrestricted license mobility into any region
  4. A working binary cannot establish entitlement for the target host model

Explanation

Correct Answer

D:

A working binary cannot establish entitlement for the target host model. This caution prevents extrapolating beyond the specific evidence or product boundary. Migration strategy includes legal and financial architecture constraints. The unresolved point should be tested using vendor contract restrictions, entitlement inventory and target vCPU plans rather than assuming a working interface proves full compliance or resilience.

Incorrect Answers

A:

A virtual machine image contains transferable software licensing rights. This limitation is framed as a blanket exception, but the case requires a different, narrower caution. The relevant boundary is that a working binary cannot establish entitlement for the target host model. Migration strategy includes legal and financial architecture constraints. Inspect vendor contract restrictions, entitlement inventory and target vCPU plans.

B:

License compliance is ensured solely by possessing an installation media copy. The proposed claim mistakes an incomplete signal or product feature for a universal guarantee. The relevant boundary is that a working binary cannot establish entitlement for the target host model. Migration strategy includes legal and financial architecture constraints. Inspect vendor contract restrictions, entitlement inventory and target vCPU plans.

C:

All Windows applications have unrestricted license mobility into any region. This claim exceeds the evidence and ignores an important risk or operational dependency. The relevant boundary is that a working binary cannot establish entitlement for the target host model. Migration strategy includes legal and financial architecture constraints. Inspect vendor contract restrictions, entitlement inventory and target vCPU plans.

Question 156

An airline plans to cut over reservations before switching an older loyalty API, but both services share one message broker version. Which assessment is best supported by the business and technical facts?

  1. The public endpoint switch is isolated from broker and schema compatibility
  2. A cutover sequence must account for incompatible shared dependencies and rollback compatibility
  3. The public application and broker share no relevant state because they have separate URLs
  4. Independent deployment schedules prove there is no dependency through the shared broker

Explanation

Correct Answer

B:

A cutover sequence must account for incompatible shared dependencies and rollback compatibility. The specified situation supports this bounded diagnosis: Migration sequencing must protect shared APIs and state transitions. It is stronger than an inference based on one convenience metric. Compare broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal to the observed workload before choosing a final architecture.

Incorrect Answers

A:

The public endpoint switch is isolated from broker and schema compatibility. This interpretation substitutes a weaker proxy or adjacent explanation for the observed architectural failure. Migration sequencing must protect shared APIs and state transitions. The better-supported diagnosis is a cutover sequence must account for incompatible shared dependencies and rollback compatibility. Review broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal before closing the analysis.

C:

The public application and broker share no relevant state because they have separate URLs. This claim relies on a condition the scenario has not demonstrated and misses the controlling design constraint. Migration sequencing must protect shared APIs and state transitions. The better-supported diagnosis is a cutover sequence must account for incompatible shared dependencies and rollback compatibility. Review broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal before closing the analysis.

D:

Independent deployment schedules prove there is no dependency through the shared broker. The option asserts an unsupported conclusion about causation, access, consistency, or resilience. Migration sequencing must protect shared APIs and state transitions. The better-supported diagnosis is a cutover sequence must account for incompatible shared dependencies and rollback compatibility. Review broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal before closing the analysis.

Question 157

An airline plans to cut over reservations before switching an older loyalty API, but both services share one message broker version. Which evidence set would most directly confirm or challenge the suspected architectural issue?

  1. A successful homepage test without broker compatibility and rollback rehearsal
  2. Broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal
  3. New client smoke test without old consumer schema and shared queue traces
  4. New client messages without testing old subscription schema interpretation

Explanation

Correct Answer

B:

Broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal. These artifacts connect the requirement and the observed system behavior. Migration sequencing must protect shared APIs and state transitions. Their value is the ability to test the proposed cause against the actual principal, configuration, transaction, or failure event. A rollback script is inadequate if data schema changes are not backward compatible.

Incorrect Answers

A:

A successful homepage test without broker compatibility and rollback rehearsal. The proposed record is useful background, but it leaves the decisive failure mode or authorization boundary unverified. The proposed evidence or intervention explicitly leaves out broker compatibility and rollback rehearsal; that omission matters under the stated requirement. The discriminating evidence is broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal. Migration sequencing must protect shared APIs and state transitions.

C:

New client smoke test without old consumer schema and shared queue traces. This artifact is incomplete for the business or technical requirement and could be green while the failure persists. The proposed evidence or intervention explicitly leaves out old consumer schema and shared queue traces; that omission matters under the stated requirement. The discriminating evidence is broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal. Migration sequencing must protect shared APIs and state transitions.

D:

New client messages without testing old subscription schema interpretation. This observation lacks a causal check of the principal, source, dependency, or tested outcome in this scenario. The proposed evidence or intervention explicitly leaves out testing old subscription schema interpretation; that omission matters under the stated requirement. The discriminating evidence is broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal. Migration sequencing must protect shared APIs and state transitions.

Question 158

An airline plans to cut over reservations before switching an older loyalty API, but both services share one message broker version. Which next design or operational action best satisfies the stated constraints?

  1. Upgrade the messaging broker first and switch all clients together, relying on VM snapshots for cross-version protocol rollback
  2. Switch service endpoints before validating old/new message formats
  3. Purge old broker topics before validating compatibility and fallback
  4. Order waves by dependencies and add reversible compatibility stages before traffic switch

Explanation

Correct Answer

D:

Order waves by dependencies and add reversible compatibility stages before traffic switch. The recommended action treats the decision-driving constraint, because migration sequencing must protect shared APIs and state transitions. The response needs approved ownership, change control, and a regression or recovery path. Its success criterion is that the rehearsal supports both old and new clients and a tested rollback without lost reservations.

Incorrect Answers

A:

Upgrade the messaging broker first and switch all clients together, relying on VM snapshots for cross-version protocol rollback. This intervention is incomplete or acts on the adjacent symptom, leaving the material requirement unresolved. Migration sequencing must protect shared APIs and state transitions. The stronger intervention is to order waves by dependencies and add reversible compatibility stages before traffic switch. Verify that the rehearsal supports both old and new clients and a tested rollback without lost reservations.

B:

Switch service endpoints before validating old/new message formats. This is a plausible operational shortcut but it fails a required security, compatibility, latency, or recovery constraint. Migration sequencing must protect shared APIs and state transitions. The stronger intervention is to order waves by dependencies and add reversible compatibility stages before traffic switch. Verify that the rehearsal supports both old and new clients and a tested rollback without lost reservations.

C:

Purge old broker topics before validating compatibility and fallback. This approach can create a false impression of progress without addressing the controlling mechanism. Migration sequencing must protect shared APIs and state transitions. The stronger intervention is to order waves by dependencies and add reversible compatibility stages before traffic switch. Verify that the rehearsal supports both old and new clients and a tested rollback without lost reservations.

Question 159

An airline plans to cut over reservations before switching an older loyalty API, but both services share one message broker version. Which observation most convincingly demonstrates the intended control or service outcome?

  1. The rehearsal supports both old and new clients and a tested rollback without lost reservations
  2. The new client works but older clients cannot decode shared messages
  3. Legacy consumers lose order updates after the endpoint switch
  4. The new release processes messages but existing clients drop events silently

Explanation

Correct Answer

A:

The rehearsal supports both old and new clients and a tested rollback without lost reservations. This is the relevant business or technical outcome, not just evidence that a configuration was deployed. Migration sequencing must protect shared APIs and state transitions. Validate it in a representative failure, performance, authorization, or data-quality test while retaining the original acceptance criteria.

Incorrect Answers

B:

The new client works but older clients cannot decode shared messages. This result is an indirect activity or health signal; it can occur while the failure remains. The outcome to establish is that the rehearsal supports both old and new clients and a tested rollback without lost reservations. Migration sequencing must protect shared APIs and state transitions.

C:

Legacy consumers lose order updates after the endpoint switch. This favorable proxy does not test the complete service, identity, cost, or transaction boundary at issue. The outcome to establish is that the rehearsal supports both old and new clients and a tested rollback without lost reservations. Migration sequencing must protect shared APIs and state transitions.

D:

The new release processes messages but existing clients drop events silently. The observation leaves a known violation or untested dependent path and therefore cannot prove remediation. The outcome to establish is that the rehearsal supports both old and new clients and a tested rollback without lost reservations. Migration sequencing must protect shared APIs and state transitions.

Question 160

An airline plans to cut over reservations before switching an older loyalty API, but both services share one message broker version. Which limitation must be considered before claiming the issue is fully resolved?

  1. A stored rollback script can reverse any irreversible schema write
  2. Rollback plans guarantee recovery even if earlier data migration destroyed fields
  3. A rollback is safe whenever the endpoint name can be switched back
  4. A rollback script is inadequate if data schema changes are not backward compatible

Explanation

Correct Answer

D:

A rollback script is inadequate if data schema changes are not backward compatible. This caution prevents extrapolating beyond the specific evidence or product boundary. Migration sequencing must protect shared APIs and state transitions. The unresolved point should be tested using broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal rather than assuming a working interface proves full compliance or resilience.

Incorrect Answers

A:

A stored rollback script can reverse any irreversible schema write. This limitation is framed as a blanket exception, but the case requires a different, narrower caution. The relevant boundary is that a rollback script is inadequate if data schema changes are not backward compatible. Migration sequencing must protect shared APIs and state transitions. Inspect broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal.

B:

Rollback plans guarantee recovery even if earlier data migration destroyed fields. The proposed claim mistakes an incomplete signal or product feature for a universal guarantee. The relevant boundary is that a rollback script is inadequate if data schema changes are not backward compatible. Migration sequencing must protect shared APIs and state transitions. Inspect broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal.

C:

A rollback is safe whenever the endpoint name can be switched back. This claim exceeds the evidence and ignores an important risk or operational dependency. The relevant boundary is that a rollback script is inadequate if data schema changes are not backward compatible. Migration sequencing must protect shared APIs and state transitions. Inspect broker protocol compatibility matrix, end-to-end workflow tests and rollback rehearsal.