The answer is that the credential is not mapped to a server login in the master database. This is the most likely cause because when an elastic job fails with the error 'Cannot open server 'myserver' requested by the login,' it indicates that the database-scoped credential used by the job agent lacks a corresponding server-level principal in the logical server’s master database. Without that mapping, the login cannot authenticate to the server itself, even if the credential has permissions on the target database. On the Microsoft Azure Database Administrator Associate DP-300 exam, this scenario tests your understanding of how elastic jobs authenticate across Azure SQL Database—a common trap is assuming the credential’s user permissions are the issue, but the error specifically points to server access, not database-level rights. To troubleshoot elastic job error cannot open server login Azure SQL, always verify that the credential’s identity exists as a login in master with the CONNECT permission. Memory tip: think of the master database as the server’s front door—without a key (login) there, the credential can’t get inside.
DP-300 Configure and manage automation of tasks Practice Question
This DP-300 practice question tests your understanding of configure and manage automation of tasks. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
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?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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 indicates that the login cannot access the server. For elastic jobs, the credential must be mapped to a login that has access to the target databases. Option A is wrong because the credential's user must have the necessary permissions, but the specific error is about server access. Option C is wrong because firewall rules would cause a different error. Option D is wrong because the job agent itself does not need a login on the target server.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this DP-300 question in full detail.
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Configure and manage automation of tasks — This question tests Configure and manage automation of tasks — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The credential is not mapped to a server login in the master database. — The error indicates that the login cannot access the server. For elastic jobs, the credential must be mapped to a login that has access to the target databases. Option A is wrong because the credential's user must have the necessary permissions, but the specific error is about server access. Option C is wrong because firewall rules would cause a different error. Option D is wrong because the job agent itself does not need a login on the target server.
What should I do if I get this DP-300 question wrong?
Identify which DP-300 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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