DP-300 Configure and manage automation of tasks Practice Question
You manage an Azure SQL Database that uses elastic jobs to automate index maintenance. The job fails intermittently with the error 'Cannot open server 'myserver' requested by the login.' The job agent uses a database-scoped credential. What is the most likely cause?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The credential is not mapped to a server login in the master database.
The error 'Cannot open server...' indicates that the login used by the credential is not recognized at the server level. For elastic jobs with database-scoped credentials, the credential must be associated with a login in the master database of the target server. If the credential is not mapped to a server login, the login cannot access the server, causing this error. Option D correctly identifies this. Option A is incorrect because ALTER ANY DATABASE permission is not required for server access. Option B is incorrect because firewall blocks cause a different error (e.g., connection timeout). Option C is incorrect because the job agent itself does not require a server-level login; it uses the credential.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The credential's user does not have ALTER ANY DATABASE permission.
Why it's wrong here
Lack of ALTER ANY DATABASE would cause a different error, not a server login error.
- ✗
The target database's firewall is blocking the job agent's IP address.
Why it's wrong here
Firewall issues would result in a connection timeout or 'Cannot open server' error but typically indicate a network issue.
- ✗
The job agent itself needs a server-level login.
Why it's wrong here
The job agent does not require its own login; the credential provides the identity.
- ✓
The credential is not mapped to a server login in the master database.
Why this is correct
The credential must be mapped to a server login that can access the target server.
Go deeper
Related to this question
Learn chapter
Overview of Azure Data Platform Options
Key term
Azure SQL Performance Tuning
Azure SQL Performance Tuning is the process of optimizing the speed and efficiency of queries and database operations in Microsoft Azure SQL Database or SQL Managed Instance to reduce latency and improve throughput.
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