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Microsoft AZ-305 Practice Test 80

Question 790

A cloud app requires data model redesign from normalized relational tables into documents. Which Azure architecture choice best meets this requirement?

  1. Design schema and query access patterns before choosing Cosmos DB as a new datastore.
  2. Copy relational tables into JSON and assume joins remain unchanged.
  3. Promise continuous replication for every database engine with no validation.
  4. Ignore compatibility errors because all products have SQL in the name.

Explanation

Correct Answer

A:

NoSQL migration often requires application changes to keys, queries and consistency.

Incorrect Answers

B:

Document databases do not automatically preserve SQL join semantics. This proposal contradicts the stated architecture constraint.

C:

An unsupported source cannot rely on an online migration feature. In the present requirement, a cloud app requires data model redesign from normalized relational tables into documents. The needed design instead works because noSQL migration often requires application changes to keys, queries and consistency.

D:

Similar branding does not guarantee equivalent instance-level support. In the present requirement, a cloud app requires data model redesign from normalized relational tables into documents. The needed design instead works because noSQL migration often requires application changes to keys, queries and consistency.

Question 791

An architecture proposal for database assessment and target fit relies on the following approach: Copy relational tables into JSON and assume joins remain unchanged. Which specific failure or mismatch should the design reviewer identify?

  1. Document databases do not automatically preserve SQL join semantics.
  2. Storage path and endpoint dependencies require explicit migration design.
  3. An unsupported source cannot rely on an online migration feature.
  4. Similar branding does not guarantee equivalent instance-level support.

Explanation

Correct Answer

A:

Copy relational tables into JSON and assume joins remain unchanged. Document databases do not automatically preserve SQL join semantics.

Incorrect Answers

B:

This concern applies to Assume the appliance automatically repairs every application connection string. in another design migrations design. The current proposal specifically fails because document databases do not automatically preserve SQL join semantics.

C:

That assessment refers to the separate proposal 'Promise continuous replication for every database engine with no validation.' not to the recommendation under review. Here, Document databases do not automatically preserve SQL join semantics.

D:

That assessment refers to the separate proposal 'Ignore compatibility errors because all products have SQL in the name.' not to the recommendation under review. Here, Document databases do not automatically preserve SQL join semantics.

Question 792

Acceptance testing must establish the following operational result: Query compatibility checks justify the redesign. Which verification action most directly establishes that outcome?

  1. Run a proof-of-concept migration with timed cutover.
  2. Execute schema and feature assessment reports on the source.
  3. Run representative application queries and write transactions against the new model.
  4. Test representative applications against imported data paths.

Explanation

Correct Answer

C:

Query compatibility checks justify the redesign.

Incorrect Answers

A:

That verification addresses the different requirement: A database migration needs low downtime but the source engine is unlisted for online transfer. It does not directly establish query compatibility checks justify the redesign.

B:

That verification addresses the different requirement: A SQL Server app uses unsupported components in the target Azure SQL Database tier. It does not directly establish query compatibility checks justify the redesign.

D:

This is a test for An offline migration arrives but required folder mappings do not match applications' new paths. The requirement here is instead demonstrated by run representative application queries and write transactions against the new model.

Question 793

A compatible on-premises SQL database needs transfer into a supported Azure PaaS target. Which Azure architecture choice best meets this requirement?

  1. Evaluate Azure Database Migration Service for the exact source-target workflow.
  2. Use a generic file copy as if it also migrated database transactions and security.
  3. Migrate rows but discard the client key configuration.
  4. Decommission the source immediately when the first target table appears.

Explanation

Correct Answer

A:

Managed migration tooling assists data transfer and cutover when supported.

Incorrect Answers

B:

Raw files do not provide an engine-aware cutover. This proposal contradicts the stated architecture constraint.

C:

Encrypted values may become unusable to applications. In the present requirement, a compatible on-premises SQL database needs transfer into a supported Azure PaaS target. The needed design instead works because managed migration tooling assists data transfer and cutover when supported.

D:

Partial data arrival is not proof of transaction completeness. In the present requirement, a compatible on-premises SQL database needs transfer into a supported Azure PaaS target. The needed design instead works because managed migration tooling assists data transfer and cutover when supported.

Question 794

An architecture proposal for azure database migration service planning relies on the following approach: Use a generic file copy as if it also migrated database transactions and security. Which specific failure or mismatch should the design reviewer identify?

  1. Encrypted values may become unusable to applications.
  2. Partial data arrival is not proof of transaction completeness.
  3. Premature removal eliminates the rollback path.
  4. Raw files do not provide an engine-aware cutover.

Explanation

Correct Answer

D:

Use a generic file copy as if it also migrated database transactions and security. Raw files do not provide an engine-aware cutover.

Incorrect Answers

A:

That assessment refers to the separate proposal 'Migrate rows but discard the client key configuration.' not to the recommendation under review. Here, Raw files do not provide an engine-aware cutover.

B:

That assessment refers to the separate proposal 'Decommission the source immediately when the first target table appears.' not to the recommendation under review. Here, Raw files do not provide an engine-aware cutover.

C:

This concern applies to Delete source servers before validating their Azure replacements. in another design migrations design. The current proposal specifically fails because raw files do not provide an engine-aware cutover.

Question 795

Acceptance testing must establish the following operational result: Database-level acceptance confirms the result. Which verification action most directly establishes that outcome?

  1. Exercise a failed acceptance scenario and a rollback decision.
  2. Execute a nonproduction migration drill and document DNS propagation.
  3. Test data consistency and target login configuration after migration.
  4. Connect with an authorized driver and decrypt representative migrated records.

Explanation

Correct Answer

C:

Database-level acceptance confirms the result.

Incorrect Answers

A:

That verification addresses the different requirement: A migration plan requires a fallback if the target fails acceptance tests. It does not directly establish database-level acceptance confirms the result.

B:

This is a test for A migration wave requires rehearsed DNS changes and rollback if the new VM fails. The requirement here is instead demonstrated by test data consistency and target login configuration after migration.

D:

That verification addresses the different requirement: A database contains encrypted columns whose client drivers are essential. It does not directly establish database-level acceptance confirms the result.

Question 796

A migration plan requires a fallback if the target fails acceptance tests. Which Azure architecture choice best meets this requirement?

  1. Decommission the source immediately when the first target table appears.
  2. Keep the source operational through validation and define an explicit rollback cutoff.
  3. Migrate rows but discard the client key configuration.
  4. Use a generic file copy as if it also migrated database transactions and security.

Explanation

Correct Answer

B:

Data movement and client cutover should not destroy recovery options prematurely.

Incorrect Answers

A:

Partial data arrival is not proof of transaction completeness. This proposal contradicts the stated architecture constraint.

C:

Encrypted values may become unusable to applications. In the present requirement, a migration plan requires a fallback if the target fails acceptance tests. The needed design instead works because data movement and client cutover should not destroy recovery options prematurely.

D:

Raw files do not provide an engine-aware cutover. In the present requirement, a migration plan requires a fallback if the target fails acceptance tests. The needed design instead works because data movement and client cutover should not destroy recovery options prematurely.

Question 797

An architecture proposal for azure database migration service planning relies on the following approach: Decommission the source immediately when the first target table appears. Which specific failure or mismatch should the design reviewer identify?

  1. Encrypted values may become unusable to applications.
  2. Partial data arrival is not proof of transaction completeness.
  3. VM and disk throughput limits constrain actual performance.
  4. Raw files do not provide an engine-aware cutover.

Explanation

Correct Answer

B:

Decommission the source immediately when the first target table appears. Partial data arrival is not proof of transaction completeness.

Incorrect Answers

A:

That assessment refers to the separate proposal 'Migrate rows but discard the client key configuration.' not to the recommendation under review. Here, Partial data arrival is not proof of transaction completeness.

C:

This concern applies to Keep the smallest OS disk and assume every VM size has unlimited IOPS. in another design migrations design. The current proposal specifically fails because partial data arrival is not proof of transaction completeness.

D:

That assessment refers to the separate proposal 'Use a generic file copy as if it also migrated database transactions and security.' not to the recommendation under review. Here, Partial data arrival is not proof of transaction completeness.

Question 798

Acceptance testing must establish the following operational result: A rehearsal proves exit criteria are enforceable. Which verification action most directly establishes that outcome?

  1. Compare latency, throughput and queue depth before and after migration.
  2. Connect with an authorized driver and decrypt representative migrated records.
  3. Test data consistency and target login configuration after migration.
  4. Exercise a failed acceptance scenario and a rollback decision.

Explanation

Correct Answer

D:

A rehearsal proves exit criteria are enforceable.

Incorrect Answers

A:

This is a test for The target Azure VM underperforms because its recommended disk throughput is too low. The requirement here is instead demonstrated by exercise a failed acceptance scenario and a rollback decision.

B:

That verification addresses the different requirement: A database contains encrypted columns whose client drivers are essential. It does not directly establish a rehearsal proves exit criteria are enforceable.

C:

That verification addresses the different requirement: A compatible on-premises SQL database needs transfer into a supported Azure PaaS target. It does not directly establish a rehearsal proves exit criteria are enforceable.

Question 799

A database contains encrypted columns whose client drivers are essential. Which Azure architecture choice best meets this requirement?

  1. Use a generic file copy as if it also migrated database transactions and security.
  2. Include key, driver and certificate compatibility in migration assessment.
  3. Decommission the source immediately when the first target table appears.
  4. Migrate rows but discard the client key configuration.

Explanation

Correct Answer

B:

Data transfer alone cannot guarantee app-level decryption after target switch.

Incorrect Answers

A:

Raw files do not provide an engine-aware cutover. In the present requirement, a database contains encrypted columns whose client drivers are essential. The needed design instead works because data transfer alone cannot guarantee app-level decryption after target switch.

C:

Partial data arrival is not proof of transaction completeness. In the present requirement, a database contains encrypted columns whose client drivers are essential. The needed design instead works because data transfer alone cannot guarantee app-level decryption after target switch.

D:

Encrypted values may become unusable to applications. This proposal contradicts the stated architecture constraint.

Question 800

An architecture proposal for azure database migration service planning relies on the following approach: Migrate rows but discard the client key configuration. Which specific failure or mismatch should the design reviewer identify?

  1. Unnecessary refactoring adds schedule and regression risk.
  2. Raw files do not provide an engine-aware cutover.
  3. Partial data arrival is not proof of transaction completeness.
  4. Encrypted values may become unusable to applications.

Explanation

Correct Answer

D:

Migrate rows but discard the client key configuration. Encrypted values may become unusable to applications.

Incorrect Answers

A:

This concern applies to Rewrite the application into microservices solely to accomplish an urgent rehost. in another design migrations design. The current proposal specifically fails because encrypted values may become unusable to applications.

B:

That assessment refers to the separate proposal 'Use a generic file copy as if it also migrated database transactions and security.' not to the recommendation under review. Here, Encrypted values may become unusable to applications.

C:

That assessment refers to the separate proposal 'Decommission the source immediately when the first target table appears.' not to the recommendation under review. Here, Encrypted values may become unusable to applications.

Designing Microsoft Azure Infrastructure Solutions (AZ-305) Practice Tests