Microsoft AZ-305 Practice Test 79
Question 780
Acceptance testing must establish the following operational result: Cutover evidence verifies the sequence. Which verification action most directly establishes that outcome?
- Execute a nonproduction migration drill and document DNS propagation.
- Compare latency, throughput and queue depth before and after migration.
- Execute schema and feature assessment reports on the source.
- Test the replicated VM's app behavior before final cutover.
Explanation
Correct Answer
A:Cutover evidence verifies the sequence.
Incorrect Answers
B:That verification addresses the different requirement: The target Azure VM underperforms because its recommended disk throughput is too low. It does not directly establish cutover evidence verifies the sequence.
C:This is a test for A SQL Server app uses unsupported components in the target Azure SQL Database tier. The requirement here is instead demonstrated by execute a nonproduction migration drill and document DNS propagation.
D:That verification addresses the different requirement: A supported on-premises VM must move to Azure IaaS with minimal application redesign. It does not directly establish cutover evidence verifies the sequence.
Question 781
The target Azure VM underperforms because its recommended disk throughput is too low. Which Azure architecture choice best meets this requirement?
- Rewrite the application into microservices solely to accomplish an urgent rehost.
- Keep the smallest OS disk and assume every VM size has unlimited IOPS.
- Adjust Azure VM and managed disk sizing based on migration assessment IO metrics.
- Delete source servers before validating their Azure replacements.
Explanation
Correct Answer
C:CPU sizing alone misses storage bottlenecks.
Incorrect Answers
A:Unnecessary refactoring adds schedule and regression risk. In the present requirement, the target Azure VM underperforms because its recommended disk throughput is too low. The needed design instead works because cPU sizing alone misses storage bottlenecks.
B:VM and disk throughput limits constrain actual performance. This proposal contradicts the stated architecture constraint.
D:Premature removal eliminates the rollback path. In the present requirement, the target Azure VM underperforms because its recommended disk throughput is too low. The needed design instead works because cPU sizing alone misses storage bottlenecks.
Question 782
An architecture proposal for vm server migration and cutover relies on the following approach: Keep the smallest OS disk and assume every VM size has unlimited IOPS. Which specific failure or mismatch should the design reviewer identify?
- VM and disk throughput limits constrain actual performance.
- Unnecessary refactoring adds schedule and regression risk.
- Premature removal eliminates the rollback path.
- An unsupported source cannot rely on an online migration feature.
Explanation
Correct Answer
A:Keep the smallest OS disk and assume every VM size has unlimited IOPS. VM and disk throughput limits constrain actual performance.
Incorrect Answers
B:That assessment refers to the separate proposal 'Rewrite the application into microservices solely to accomplish an urgent rehost.' not to the recommendation under review. Here, VM and disk throughput limits constrain actual performance.
C:That assessment refers to the separate proposal 'Delete source servers before validating their Azure replacements.' not to the recommendation under review. Here, VM and disk throughput limits constrain actual performance.
D:This concern applies to Promise continuous replication for every database engine with no validation. in another design migrations design. The current proposal specifically fails because vM and disk throughput limits constrain actual performance.
Question 783
Acceptance testing must establish the following operational result: IO measurements isolate sizing errors. Which verification action most directly establishes that outcome?
- Execute a nonproduction migration drill and document DNS propagation.
- Compare latency, throughput and queue depth before and after migration.
- Run a proof-of-concept migration with timed cutover.
- Test the replicated VM's app behavior before final cutover.
Explanation
Correct Answer
B:IO measurements isolate sizing errors.
Incorrect Answers
A:That verification addresses the different requirement: A migration wave requires rehearsed DNS changes and rollback if the new VM fails. It does not directly establish iO measurements isolate sizing errors.
C:This is a test for A database migration needs low downtime but the source engine is unlisted for online transfer. The requirement here is instead demonstrated by compare latency, throughput and queue depth before and after migration.
D:That verification addresses the different requirement: A supported on-premises VM must move to Azure IaaS with minimal application redesign. It does not directly establish iO measurements isolate sizing errors.
Question 784
A SQL Server app uses unsupported components in the target Azure SQL Database tier. Which Azure architecture choice best meets this requirement?
- Assess compatibility and choose Azure SQL Managed Instance or VM when needed.
- Copy relational tables into JSON and assume joins remain unchanged.
- Ignore compatibility errors because all products have SQL in the name.
- Promise continuous replication for every database engine with no validation.
Explanation
Correct Answer
A:Engine feature requirements determine the valid migration destination.
Incorrect Answers
B:Document databases do not automatically preserve SQL join semantics. In the present requirement, a SQL Server app uses unsupported components in the target Azure SQL Database tier. The needed design instead works because engine feature requirements determine the valid migration destination.
C:Similar branding does not guarantee equivalent instance-level support. This proposal contradicts the stated architecture constraint.
D:An unsupported source cannot rely on an online migration feature. In the present requirement, a SQL Server app uses unsupported components in the target Azure SQL Database tier. The needed design instead works because engine feature requirements determine the valid migration destination.
Question 785
An architecture proposal for database assessment and target fit relies on the following approach: Ignore compatibility errors because all products have SQL in the name. Which specific failure or mismatch should the design reviewer identify?
- An unsupported source cannot rely on an online migration feature.
- Inadequate bandwidth could miss the migration schedule.
- Document databases do not automatically preserve SQL join semantics.
- Similar branding does not guarantee equivalent instance-level support.
Explanation
Correct Answer
D:Ignore compatibility errors because all products have SQL in the name. Similar branding does not guarantee equivalent instance-level support.
Incorrect Answers
A:That assessment refers to the separate proposal 'Promise continuous replication for every database engine with no validation.' not to the recommendation under review. Here, Similar branding does not guarantee equivalent instance-level support.
B:This concern applies to Use only AzCopy over the constrained link without estimating transfer time. in another design migrations design. The current proposal specifically fails because similar branding does not guarantee equivalent instance-level support.
C:That assessment refers to the separate proposal 'Copy relational tables into JSON and assume joins remain unchanged.' not to the recommendation under review. Here, Similar branding does not guarantee equivalent instance-level support.
Question 786
Acceptance testing must establish the following operational result: Feature gap output guides the target choice. Which verification action most directly establishes that outcome?
- Execute schema and feature assessment reports on the source.
- Run representative application queries and write transactions against the new model.
- Run a proof-of-concept migration with timed cutover.
- Calculate upload duration and compare Data Box shipping/copy workflow.
Explanation
Correct Answer
A:Feature gap output guides the target choice.
Incorrect Answers
B:That verification addresses the different requirement: A cloud app requires data model redesign from normalized relational tables into documents. It does not directly establish feature gap output guides the target choice.
C: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 feature gap output guides the target choice.
D:This is a test for A remote datacenter has 300 TB to migrate but only a slow, expensive WAN link. The requirement here is instead demonstrated by execute schema and feature assessment reports on the source.
Question 787
A database migration needs low downtime but the source engine is unlisted for online transfer. Which Azure architecture choice best meets this requirement?
- Ignore compatibility errors because all products have SQL in the name.
- Promise continuous replication for every database engine with no validation.
- Copy relational tables into JSON and assume joins remain unchanged.
- Validate the exact supported source-target online migration path and downtime.
Explanation
Correct Answer
D:Online techniques are constrained by engine and migration service support.
Incorrect Answers
A:Similar branding does not guarantee equivalent instance-level support. In the present requirement, a database migration needs low downtime but the source engine is unlisted for online transfer. The needed design instead works because online techniques are constrained by engine and migration service support.
B:An unsupported source cannot rely on an online migration feature. This proposal contradicts the stated architecture constraint.
C:Document databases do not automatically preserve SQL join semantics. In the present requirement, a database migration needs low downtime but the source engine is unlisted for online transfer. The needed design instead works because online techniques are constrained by engine and migration service support.
Question 788
An architecture proposal for database assessment and target fit relies on the following approach: Promise continuous replication for every database engine with no validation. Which specific failure or mismatch should the design reviewer identify?
- Unencrypted removable media can expose regulated content.
- Document databases do not automatically preserve SQL join semantics.
- Similar branding does not guarantee equivalent instance-level support.
- An unsupported source cannot rely on an online migration feature.
Explanation
Correct Answer
D:Promise continuous replication for every database engine with no validation. An unsupported source cannot rely on an online migration feature.
Incorrect Answers
A:This concern applies to Copy plaintext data to an unmanaged USB drive and ship without control. in another design migrations design. The current proposal specifically fails because an unsupported source cannot rely on an online migration feature.
B:That assessment refers to the separate proposal 'Copy relational tables into JSON and assume joins remain unchanged.' not to the recommendation under review. Here, An unsupported source cannot rely on an online migration feature.
C: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, An unsupported source cannot rely on an online migration feature.
Question 789
Acceptance testing must establish the following operational result: Measured downtime establishes realistic objectives. Which verification action most directly establishes that outcome?
- Execute schema and feature assessment reports on the source.
- Run a proof-of-concept migration with timed cutover.
- Run representative application queries and write transactions against the new model.
- Verify upload status, transfer logs and secure wipe procedures.
Explanation
Correct Answer
B:Measured downtime establishes realistic objectives.
Incorrect Answers
A: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 measured downtime establishes realistic objectives.
C:That verification addresses the different requirement: A cloud app requires data model redesign from normalized relational tables into documents. It does not directly establish measured downtime establishes realistic objectives.
D:This is a test for The organization ships a Data Box appliance containing sensitive data. The requirement here is instead demonstrated by run a proof-of-concept migration with timed cutover.
Question 790
A cloud app requires data model redesign from normalized relational tables into documents. Which Azure architecture choice best meets this requirement?
- Design schema and query access patterns before choosing Cosmos DB as a new datastore.
- Copy relational tables into JSON and assume joins remain unchanged.
- Promise continuous replication for every database engine with no validation.
- 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.