IBM Exam C9510-418 Topic 1 Question 67 Discussion

Actual exam question for IBM's C9510-418 exam

Question #: 67
Topic #: 1

An administrator configures an IBM DB2data source at cell scope. The environment variable DB2UNIVERSAL_JDBC_DRIVER_PATH is configured at cluster scope. The data source test connection on one node succeeds, but fails on the other node with java.lang.ClassNotFoundException:com.ibm.db2.jcc.DB2ConnectionPoolDataSource.

Which of the below is the likely cause for the exception?

AThe data source is configured at cell scope.

BMultiple driver JARs are installed on the second node.

CDB2UNIVERSAL_JDBC_DRIVER_PATH is configured at cluster scope.

DA different version of the JDBC driver JAR does not exist on the second node.

Show Suggested Answer

Suggested Answer: B

by Oretha at Apr 10, 2024, 12:36 PM

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Deja

1 years ago

I agree with If the driver upgrade failed, then the JVM would still be using the old JDBC driver, leading to the test connection failure.

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Shaniqua

1 years ago

I experienced a similar issue before. It turned out that the driver upgrade failed, causing the test connection to fail.

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Emelda

1 years ago

I disagree with I believe that the failure could be due to multiple drivers in the provider classpath.

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Georgeanna

1 years ago

I think the possible reason for the test connection failure could be that DB2UNIVERSAL_JDBC_DRIVER_PATH was NULL.

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Jimmie

1 years ago

Or maybe the driver upgrade failed, as mentioned in option B.

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Mozell

1 years ago

That makes sense. Maybe the administrator needs to remove the old driver to avoid conflicts.

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Jaclyn

1 years ago

I think the possible reason could be C) There are multiple drivers in the provider classpath.

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Cristal

1 years ago

Haha, yeah, I can just imagine the administrator trying to upgrade the driver and accidentally deleting all the JARs. That would be a real face-palm moment!

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Lauran

1 years ago

Oh no, that would be a nightmare! Hopefully they have a backup.

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Miss

1 years ago

B) The driver upgrade failed.

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Izetta

1 years ago

Hmm, good point. I was leaning more towards option B - the driver upgrade failed. Maybe there was an issue with the installation or the new driver wasn't compatible with the system.

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Kirk

1 years ago

But I'm not sure about that. Option D also seems plausible - if the DB2UNIVERSAL_JDBC_DRIVER_PATH environment variable was not set correctly, that could also lead to the old driver being used.

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Lilli

1 years ago

I agree. My first thought was option C - multiple drivers in the provider classpath. That could definitely cause the JVM to use the old driver instead of the new one.

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Mabelle

1 years ago

Yeah, that's a really good point. It seems like there could be an issue with the classpath or the way the driver is being loaded.

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Kara

1 years ago

Hmm, this question seems to be testing our understanding of JDBC driver management. I think the key here is that the JVM is still using the old driver, even after the administrator upgraded it.

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