Question 890
The planned architecture is: Build a ready Azure landing zone using management groups, subscriptions, governance policies, identity and network foundations. Workload context: A new application migration cannot start until the Azure destination has baseline identity, network, policy, monitoring and billing controls. Which acceptance test demonstrates that the required behavior works?
- Register one on-prem machine and confirm inventory/policy reports while it remains physically on-premises.
- Provision a trial workload and verify access, DNS, logging and compliance controls before migration.
- Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
- Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing.
Explanation
Correct Answer
B:The acceptance test is specific: Provision a trial workload and verify access, DNS, logging and compliance controls before migration. Its purpose is to establish that the proposed architecture works: Build a ready Azure landing zone using management groups, subscriptions, governance policies, identity and network foundations.
Incorrect Answers
A:This check validates a different workload: Register one on-prem machine and confirm inventory/policy reports while it remains physically on-premises. Its associated design is: Use Azure Arc-enabled Servers to inventory hybrid machines and apply supported policies/extensions. The required acceptance test here is: Provision a trial workload and verify access, DNS, logging and compliance controls before migration.
C:The alternative test targets: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback. The scenario's actual proposed remedy is: Build a ready Azure landing zone using management groups, subscriptions, governance policies, identity and network foundations. Verify that one by: Provision a trial workload and verify access, DNS, logging and compliance controls before migration.
D:This check validates a different workload: Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing. Its associated design is: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions. The required acceptance test here is: Provision a trial workload and verify access, DNS, logging and compliance controls before migration.
Question 891
The customer states: A new application migration cannot start until the Azure destination has baseline identity, network, policy, monitoring and billing controls. An incident reveals: Migrated apps deploy into ad hoc subscriptions lacking logging, identity and routing controls. What cause best accounts for this evidence?
- Migration order ignored dependency connectivity and shared service placement.
- The cost model ignores actual measured utilization and licensing optimization.
- The destination landing zone was not prepared for migration waves.
- The hybrid governance model incorrectly limits inventory to cloud-native servers.
Explanation
Correct Answer
C:The recorded behavior follows from: The destination landing zone was not prepared for migration waves. The appropriate mitigation would be: Build a ready Azure landing zone using management groups, subscriptions, governance policies, identity and network foundations. Verify with: Provision a trial workload and verify access, DNS, logging and compliance controls before migration.
Incorrect Answers
A:This cause would explain a different symptom: The first migrated app is unusable because its required database remains unreachable on-premises. The mechanism for that event is: Migration order ignored dependency connectivity and shared service placement. Here the stated symptom is: Migrated apps deploy into ad hoc subscriptions lacking logging, identity and routing controls. Its cause is: The destination landing zone was not prepared for migration waves.
B:The proposed diagnosis fits another scenario: The cost model ignores actual measured utilization and licensing optimization. It would typically be reflected by: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. The current evidence instead supports: The destination landing zone was not prepared for migration waves.
D:This cause would explain a different symptom: A migration dashboard excludes critical servers until their final Azure VM cutover. The mechanism for that event is: The hybrid governance model incorrectly limits inventory to cloud-native servers. Here the stated symptom is: Migrated apps deploy into ad hoc subscriptions lacking logging, identity and routing controls. Its cause is: The destination landing zone was not prepared for migration waves.
Question 892
Workload context: A new application migration cannot start until the Azure destination has baseline identity, network, policy, monitoring and billing controls. The implemented remedy is: Build a ready Azure landing zone using management groups, subscriptions, governance policies, identity and network foundations. Which ongoing practice most specifically prevents recurrence of this failure: Migrated apps deploy into ad hoc subscriptions lacking logging, identity and routing controls.?
- Validate landing-zone readiness gates for each new subscription.
- Refresh the cost model when rightsizing and workload commitments change.
- Maintain wave sequencing and connectivity tests as dependencies are uncovered.
- Maintain agent health and differentiate discovered, Arc-managed and migrated machine states.
Explanation
Correct Answer
A:The preventive control is: Validate landing-zone readiness gates for each new subscription. It targets the earlier cause: The destination landing zone was not prepared for migration waves. Confirm ongoing effectiveness by: Provision a trial workload and verify access, DNS, logging and compliance controls before migration.
Incorrect Answers
B:This is a reasonable safeguard for a different fault: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. That different mechanism is: The cost model ignores actual measured utilization and licensing optimization. The original incident here instead arises from: The destination landing zone was not prepared for migration waves. The directly relevant safeguard is: Validate landing-zone readiness gates for each new subscription.
C:The proposed control focuses on: Migration order ignored dependency connectivity and shared service placement. For the design in the question, recurrence comes from: The destination landing zone was not prepared for migration waves. A precise prevention step is: Validate landing-zone readiness gates for each new subscription.
D:That safeguard manages another risk: The hybrid governance model incorrectly limits inventory to cloud-native servers. Its scenario is: A migration dashboard excludes critical servers until their final Azure VM cutover. The present recurring risk is: The destination landing zone was not prepared for migration waves. The proper ongoing control is: Validate landing-zone readiness gates for each new subscription.
Question 893
A solution architect is reviewing a workload: A team must build a business case comparing Azure target costs with current underutilized datacenter hardware before obtaining migration approval. The observed incident is: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. Which architecture choice most directly removes the identified weakness?
- Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions.
- Use Azure Migrate database assessment and supported SQL assessment tools to identify blockers and target recommendations.
- Use the supported Azure Migrate server-migration workflow with replication, test migration and final cutover.
- Use Azure Migrate discovery and assessment with a suitable appliance and performance-based sizing.
Explanation
Correct Answer
A:The evidence (A migration proposal assumes every on-prem CPU must map to an equally large Azure VM.) identifies the following cause: The cost model ignores actual measured utilization and licensing optimization. The design that removes it is: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions. The acceptance check is: Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing.
Incorrect Answers
B:The option belongs to a different failure mechanism: Database service selection preceded discovery of instance-level feature requirements. That situation exhibits: Applications are moved to Azure SQL Database then break due to unassessed SQL Agent dependencies. For the stated case, the remedy is: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions.
C:That design instead addresses another observed condition: A one-time disk copy causes extended outage and incomplete changes after initial transfer. Its technical cause is: A continuous migration replication and controlled cutover process was not planned. The current workload exhibits: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. Its targeted remedy is: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions.
D:This choice mitigates an alternative scenario, where: Migration planning uses manually guessed VM sizes and misses application dependencies. The underlying issue there is: No structured server discovery and utilization assessment was completed. Here the root issue is: The cost model ignores actual measured utilization and licensing optimization. Choose the corresponding action: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions.
Question 894
An architect proposes this change: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions. The workload context is: A team must build a business case comparing Azure target costs with current underutilized datacenter hardware before obtaining migration approval. Which evidence would most directly validate the change?
- Compare discovered machines and dependency maps to known inventory, then review assessment sizing results.
- Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing.
- Run a nonproduction test migration and validate application services before committing final cutover.
- Run assessment against a representative SQL Server and review compatibility findings before migration.
Explanation
Correct Answer
B:The decisive evidence is: Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing. This measures the mechanism of the planned change, not an unrelated Azure service: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions.
Incorrect Answers
A:That observation pertains to a separate failure: Migration planning uses manually guessed VM sizes and misses application dependencies. Its cause is: No structured server discovery and utilization assessment was completed. It does not confirm the result of this design. The direct proof would be: Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing.
C:This check validates a different workload: Run a nonproduction test migration and validate application services before committing final cutover. Its associated design is: Use the supported Azure Migrate server-migration workflow with replication, test migration and final cutover. The required acceptance test here is: Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing.
D:That observation pertains to a separate failure: Applications are moved to Azure SQL Database then break due to unassessed SQL Agent dependencies. Its cause is: Database service selection preceded discovery of instance-level feature requirements. It does not confirm the result of this design. The direct proof would be: Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing.
Question 895
During architecture troubleshooting, a team reports: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. Context: A team must build a business case comparing Azure target costs with current underutilized datacenter hardware before obtaining migration approval. Which underlying design mistake explains the observed behavior most precisely?
- No structured server discovery and utilization assessment was completed.
- Database service selection preceded discovery of instance-level feature requirements.
- A continuous migration replication and controlled cutover process was not planned.
- The cost model ignores actual measured utilization and licensing optimization.
Explanation
Correct Answer
D:This is the failure mechanism rather than an incidental symptom: The cost model ignores actual measured utilization and licensing optimization. It accounts for: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. The architectural repair is: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions.
Incorrect Answers
A:The proposed diagnosis fits another scenario: No structured server discovery and utilization assessment was completed. It would typically be reflected by: Migration planning uses manually guessed VM sizes and misses application dependencies. The current evidence instead supports: The cost model ignores actual measured utilization and licensing optimization.
B:The alternative weakness is: Database service selection preceded discovery of instance-level feature requirements. Its associated failure is: Applications are moved to Azure SQL Database then break due to unassessed SQL Agent dependencies. Neither explains the present observation: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. The direct cause here is: The cost model ignores actual measured utilization and licensing optimization.
C:This cause would explain a different symptom: A one-time disk copy causes extended outage and incomplete changes after initial transfer. The mechanism for that event is: A continuous migration replication and controlled cutover process was not planned. Here the stated symptom is: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. Its cause is: The cost model ignores actual measured utilization and licensing optimization.
Question 896
The design change is: Use Azure Migrate assessment and business case cost estimates grounded in discovered utilization and licensing assumptions. The original failure was: A migration proposal assumes every on-prem CPU must map to an equally large Azure VM. Which ongoing control best prevents recurrence of the same root cause?
- Refresh discovery data and application grouping before every migration wave.
- Rehearse test migration, cleanup and rollback after source VM changes.
- Track assessment blockers and reassess when application versions change.
- Refresh the cost model when rightsizing and workload commitments change.
Explanation
Correct Answer
D:This is an ongoing protection specific to the fault: Refresh the cost model when rightsizing and workload commitments change. The recurrence risk is: The cost model ignores actual measured utilization and licensing optimization. It should be checked using: Compare recommendation sizing and total cost model with sampled observed VM metrics and licensing.
Incorrect Answers
A:This is a reasonable safeguard for a different fault: Migration planning uses manually guessed VM sizes and misses application dependencies. That different mechanism is: No structured server discovery and utilization assessment was completed. The original incident here instead arises from: The cost model ignores actual measured utilization and licensing optimization. The directly relevant safeguard is: Refresh the cost model when rightsizing and workload commitments change.
B:The proposed control focuses on: A continuous migration replication and controlled cutover process was not planned. For the design in the question, recurrence comes from: The cost model ignores actual measured utilization and licensing optimization. A precise prevention step is: Refresh the cost model when rightsizing and workload commitments change.
C:That safeguard manages another risk: Database service selection preceded discovery of instance-level feature requirements. Its scenario is: Applications are moved to Azure SQL Database then break due to unassessed SQL Agent dependencies. The present recurring risk is: The cost model ignores actual measured utilization and licensing optimization. The proper ongoing control is: Refresh the cost model when rightsizing and workload commitments change.
Question 897
A design workshop has this requirement: A retailer has dozens of coupled applications and needs migration waves ordered by shared database, network and identity dependencies. Operators currently observe: The first migrated app is unusable because its required database remains unreachable on-premises. Select the ONE design remedy that best addresses the root cause.
- Build a ready Azure landing zone using management groups, subscriptions, governance policies, identity and network foundations.
- Use a supported App Service migration/readiness assessment and verify framework, authentication and dependency constraints.
- Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback.
- Establish pre-cutover synchronization, validation checkpoints, source write-freeze/rollback plan and recovery roles.
Explanation
Correct Answer
C:The evidence (The first migrated app is unusable because its required database remains unreachable on-premises.) identifies the following cause: Migration order ignored dependency connectivity and shared service placement. The design that removes it is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback. The acceptance check is: Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
Incorrect Answers
A:The option belongs to a different failure mechanism: The destination landing zone was not prepared for migration waves. That situation exhibits: Migrated apps deploy into ad hoc subscriptions lacking logging, identity and routing controls. For the stated case, the remedy is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback.
B:That design instead addresses another observed condition: The migrated site fails because an unsupported local COM component remains essential. Its technical cause is: PaaS suitability and application dependencies were not assessed before migration. The current workload exhibits: The first migrated app is unusable because its required database remains unreachable on-premises. Its targeted remedy is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback.
D:The option belongs to a different failure mechanism: Rollback ownership and write-direction controls were not defined. That situation exhibits: Both old and new databases accept conflicting updates after a failed migration cutover. For the stated case, the remedy is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback.
Question 898
The planned architecture is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback. Workload context: A retailer has dozens of coupled applications and needs migration waves ordered by shared database, network and identity dependencies. Which acceptance test demonstrates that the required behavior works?
- Simulate a failed integrity check and execute the rollback steps without split-brain writes.
- Deploy a pilot on App Service and test application endpoints and dependent services.
- Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
- Provision a trial workload and verify access, DNS, logging and compliance controls before migration.
Explanation
Correct Answer
C:The acceptance test is specific: Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave. Its purpose is to establish that the proposed architecture works: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback.
Incorrect Answers
A:The alternative test targets: Establish pre-cutover synchronization, validation checkpoints, source write-freeze/rollback plan and recovery roles. The scenario's actual proposed remedy is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback. Verify that one by: Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
B:This check validates a different workload: Deploy a pilot on App Service and test application endpoints and dependent services. Its associated design is: Use a supported App Service migration/readiness assessment and verify framework, authentication and dependency constraints. The required acceptance test here is: Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
D:The alternative test targets: Build a ready Azure landing zone using management groups, subscriptions, governance policies, identity and network foundations. The scenario's actual proposed remedy is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback. Verify that one by: Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
Question 899
The customer states: A retailer has dozens of coupled applications and needs migration waves ordered by shared database, network and identity dependencies. An incident reveals: The first migrated app is unusable because its required database remains unreachable on-premises. What cause best accounts for this evidence?
- The destination landing zone was not prepared for migration waves.
- Rollback ownership and write-direction controls were not defined.
- PaaS suitability and application dependencies were not assessed before migration.
- Migration order ignored dependency connectivity and shared service placement.
Explanation
Correct Answer
D:The recorded behavior follows from: Migration order ignored dependency connectivity and shared service placement. The appropriate mitigation would be: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback. Verify with: Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
Incorrect Answers
A:The alternative weakness is: The destination landing zone was not prepared for migration waves. Its associated failure is: Migrated apps deploy into ad hoc subscriptions lacking logging, identity and routing controls. Neither explains the present observation: The first migrated app is unusable because its required database remains unreachable on-premises. The direct cause here is: Migration order ignored dependency connectivity and shared service placement.
B:This cause would explain a different symptom: Both old and new databases accept conflicting updates after a failed migration cutover. The mechanism for that event is: Rollback ownership and write-direction controls were not defined. Here the stated symptom is: The first migrated app is unusable because its required database remains unreachable on-premises. Its cause is: Migration order ignored dependency connectivity and shared service placement.
C:The proposed diagnosis fits another scenario: PaaS suitability and application dependencies were not assessed before migration. It would typically be reflected by: The migrated site fails because an unsupported local COM component remains essential. The current evidence instead supports: Migration order ignored dependency connectivity and shared service placement.
Question 900
Workload context: A retailer has dozens of coupled applications and needs migration waves ordered by shared database, network and identity dependencies. The implemented remedy is: Use discovered application dependency maps to group cutover waves with tested inter-service connectivity and rollback. Which ongoing practice most specifically prevents recurrence of this failure: The first migrated app is unusable because its required database remains unreachable on-premises.?
- Track unsupported framework dependencies and adapt them before production cutover.
- Validate landing-zone readiness gates for each new subscription.
- Maintain wave sequencing and connectivity tests as dependencies are uncovered.
- Rehearse dual-write avoidance, validation and DNS reversal before live migrations.
Explanation
Correct Answer
C:This is an ongoing protection specific to the fault: Maintain wave sequencing and connectivity tests as dependencies are uncovered. The recurrence risk is: Migration order ignored dependency connectivity and shared service placement. It should be checked using: Cut over a low-risk cohort and verify dependent login, database and message flows before the next wave.
Incorrect Answers
A:The proposed control focuses on: PaaS suitability and application dependencies were not assessed before migration. For the design in the question, recurrence comes from: Migration order ignored dependency connectivity and shared service placement. A precise prevention step is: Maintain wave sequencing and connectivity tests as dependencies are uncovered.
B:That safeguard manages another risk: The destination landing zone was not prepared for migration waves. Its scenario is: Migrated apps deploy into ad hoc subscriptions lacking logging, identity and routing controls. The present recurring risk is: Migration order ignored dependency connectivity and shared service placement. The proper ongoing control is: Maintain wave sequencing and connectivity tests as dependencies are uncovered.
D:The proposed control focuses on: Rollback ownership and write-direction controls were not defined. For the design in the question, recurrence comes from: Migration order ignored dependency connectivity and shared service placement. A precise prevention step is: Maintain wave sequencing and connectivity tests as dependencies are uncovered.
Designing Microsoft Azure Infrastructure Solutions (AZ-305) Practice Tests