Exam AZ-204 topic 6 question 34 discussion

C,D,E The first and second case are fairly straight forward to handle. Try to open the connection again. When you succeed, the transient error has been mitigated by the system. You can use your Azure Database for MySQL again. We recommend having waits before retrying the connection. Back off if the initial retries fail. This way the system can use all resources available to overcome the error situation. A good pattern to follow is: Wait for 5 seconds before your first retry. For each following retry, the increase the wait exponentially, up to 60 seconds. Set a max number of retries at which point your application considers the operation failed. https://docs.microsoft.com/en-us/azure/mysql/single-server/concepts-connectivity

C, D, E are the only ones implementing retries

C. Wait five seconds before repeating the connection attempt to the database. D. Set a maximum number of connection attempts to 10 and report an error on subsequent connections. E. Increase connection repeat attempts exponentially up to 120 seconds.

Instruction says Each correct answer represents part of the solution. So A. Close the database connection and immediately report an error. C. Wait five seconds before repeating the connection attempt to the database. D. Set a maximum number of connection attempts to 10 and report an error on subsequent connections.

Option A ("Close the database connection and immediately report an error") is not a suitable retry strategy as it does not involve retrying the connection after a transient failure.

C, D, E It says use retries so A and B Are not correct.

A transient error is an error that will resolve itself. Transient errors can occur for example when hardware or network failure happens. A best practice for designing and developing applications in the cloud is to expect transient errors. Assume they can happen in any component at any time and have the appropriate logic to handle these situations. Transient errors should be handled using retry logic. A good pattern to follow is: Wait for 5 seconds before your first retry. For each following retry, the increase the wait exponentially, up to 60 seconds. Set a max number of retries at which point your application considers the operation failed. Reference: https://learn.microsoft.com/en-us/azure/mysql/single-server/concepts-connectivity#handling-transient-errors

C, D, E because A and B are just "give up"

*C,D,E*

C, D, E

Got this in 10/2022 Went with C, D, E

CDE for sure

Correct answers are C, D, E

Given answers are correct