- A
Verify that the connection string in the job's JDBC URL uses the correct format and includes the driver class
The JDBC URL must be correctly formatted, e.g., 'jdbc:postgresql://...'.
- B
Check that the Glue job's VPC and security groups allow outbound traffic to the RDS instance
Why wrong: Network issues cause timeouts, not 'No suitable driver'.
- C
Restart the Glue job with a higher timeout value
Why wrong: Restarting does not fix missing driver; the job will fail again.
- D
Include the PostgreSQL JDBC driver JAR as a dependent library in the Glue job
Glue jobs need the driver JAR to be explicitly provided for non-AWS databases.
- E
Update the IAM role associated with the Glue job to allow 'rds:*' permissions
Why wrong: IAM permissions are for AWS API calls, not for driver loading.
DEA-C01 Data Operations and Support Practice Question
This DEA-C01 practice question tests your understanding of data operations and support. 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.
A data engineer is troubleshooting an AWS Glue job that reads from an Amazon RDS for PostgreSQL database using a JDBC connection. The job fails with the error 'java.sql.SQLException: No suitable driver'. Which TWO actions should the engineer take to resolve this issue? (Select TWO.)
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
Verify that the connection string in the job's JDBC URL uses the correct format and includes the driver class
Option A is correct because the 'No suitable driver' error in JDBC indicates that the driver class specified in the JDBC URL is either missing or incorrect. For PostgreSQL, the JDBC URL must follow the format 'jdbc:postgresql://host:port/database' and the driver class must be 'org.postgresql.Driver'. If the URL is malformed or the driver class is not properly referenced, the Glue job cannot load the driver, leading to this specific SQLException.
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.
- ✓
Verify that the connection string in the job's JDBC URL uses the correct format and includes the driver class
Why this is correct
The JDBC URL must be correctly formatted, e.g., 'jdbc:postgresql://...'.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Check that the Glue job's VPC and security groups allow outbound traffic to the RDS instance
Why it's wrong here
Network issues cause timeouts, not 'No suitable driver'.
- ✗
Restart the Glue job with a higher timeout value
Why it's wrong here
Restarting does not fix missing driver; the job will fail again.
- ✓
Include the PostgreSQL JDBC driver JAR as a dependent library in the Glue job
Why this is correct
Glue jobs need the driver JAR to be explicitly provided for non-AWS databases.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Update the IAM role associated with the Glue job to allow 'rds:*' permissions
Why it's wrong here
IAM permissions are for AWS API calls, not for driver loading.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse network connectivity issues (VPC/security groups) with classpath/driver loading errors, leading them to select Option B instead of recognizing that 'No suitable driver' is a Java classloading problem, not a network one.
Detailed technical explanation
How to think about this question
The 'No suitable driver' error arises when the JDBC driver class is not in the classpath or the JDBC URL prefix does not match any registered driver. In AWS Glue, you must explicitly include the PostgreSQL JDBC JAR (e.g., postgresql-42.x.x.jar) as a dependent library via the '--extra-jars' parameter or the Glue console, because Glue does not bundle third-party JDBC drivers by default. The driver class is automatically loaded when the URL prefix matches, but if the JAR is missing, the SQLException is thrown immediately.
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.
TExam Day Tips
- 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.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this DEA-C01 question test?
Data Operations and Support — This question tests Data Operations and Support — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Verify that the connection string in the job's JDBC URL uses the correct format and includes the driver class — Option A is correct because the 'No suitable driver' error in JDBC indicates that the driver class specified in the JDBC URL is either missing or incorrect. For PostgreSQL, the JDBC URL must follow the format 'jdbc:postgresql://host:port/database' and the driver class must be 'org.postgresql.Driver'. If the URL is malformed or the driver class is not properly referenced, the Glue job cannot load the driver, leading to this specific SQLException.
What should I do if I get this DEA-C01 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This DEA-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DEA-C01 exam.
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