Requirements
Receipt processing
Concurrent processing of a receipt must be prevented.
Logging
Azure Application Insights is used for telemetry and logging in both the processor and the web application. The processor also has TraceWriter logging enabled.
Application Insights must always contain all log messages.
Disaster recovery
Regional outage must not impact application availability. All DR operations must not be dependent on application running and must ensure that data in the DR
region is up to date.
Security
Users’ SecurityPin must be stored in such a way that access to the database does not
allow the viewing of SecurityPins. The web application is the only system
that should have access to SecurityPins.
All certificates and secrets used to secure data must be stored in Azure Key Vault.
You must adhere to the Least Privilege Principal and provide privileges which are essential to perform the intended function.
All access to Azure Storage and Azure SQL database must use the application’s Managed Service Identity (MSI)
Receipt
data must always be encrypted at rest.
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All data must be protected in transit.
User’s expense account number must be visible only to logged in users. All other views of the expense account number should i
nclude only the last segment
with the remaining parts obscured.
In the case of a security breach, access to all summary reports must be revoked without impacting other parts of the system.
Issues
Upload format issue
Employees occasionally report an issue with uploading a receipt using the web application. They report that when they upload a receipt using the Azure File Share,
the receipt does not appear in their profile. When this occurs, they delete the file in the file share and use the web application, which returns a 500 Internal Server
error page.
Capacity issue
During busy periods, employees report long delays between the time they upload the receipt and when it appears in the web application.
Log capacity issue
Developers report that the number of log messages in the trace output for the processor is too high, resulting in lost log messages.
Processing.cs
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Database.cs
ReceiptUploader.cs
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ConfigureSSE.ps1
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QUESTION 1
Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might
meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.
