IBM Exam C9510-401 Topic 5 Question 100 Discussion

Actual exam question for IBM's C9510-401 exam

Question #: 100
Topic #: 5

The application placement controller has been configured with elasticity mode enabled. Intermittently, all instances of a dynamic cluster are removed. After further review, the system administrator noticed that it occurs during peak load on another dynamic cluster.

The administrator wants to keep at least one instance available. Which configuration is needed in the dynamic clusters?

AEnable application lazy start with elasticity mode.

BSet the proactiveIdleStop custom property to true.

CSet the Number of instances to a value greater than zero.

DDisable the option ''If other dynamic clusters need resources, stop all instances of this cluster during periods of inactivity''.

Show Suggested Answer

Suggested Answer: D

It is not recommended to enable elasticity mode when the following option is set in the administrative console for one or more dynamic clusters:

If other dynamic clusters need resources, stop all instances of this cluster during periods of inactivity.

If you have elasticity mode enabled and the option set, the application placement controller can remove all of the custom nodes in the cell.

References: https://www.ibm.com/support/knowledgecenter/en/SSAW57_8.5.5/com.ibm.websphere.nd.doc/ae/twve_cfgelastic.html

by Ma at Sep 19, 2024, 02:47 AM

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Ruby

17 days ago

Wait, are we sure the application lazy start is even relevant here? I feel like that's more for cold start scenarios. Option C is the way to go.

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Lezlie

18 days ago

This is a classic case of 'keep it simple, stupid'. Just set the number of instances to a non-zero value and call it a day. Option C FTW!

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Linn

21 days ago

Option B is pretty interesting. Enabling proactiveIdleStop might help manage resources more efficiently. Worth considering.

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Leslie

9 days ago

I think option B is a good choice. It can help prevent all instances from being removed.

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Lon

26 days ago

I'd go with Option D. Keeping at least one instance running during peak load on another cluster seems like the safest bet.

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Jerry

6 days ago

I agree, Option D seems like the best choice to ensure at least one instance is always available.

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Howard

1 months ago

Hmm, I'm not sure disabling the 'If other dynamic clusters need resources...' option is the best idea. That could lead to some serious resource conflicts.

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Nancey

2 days ago

User 3: I agree, setting the Number of instances to a value greater than zero might also help.

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Earlean

5 days ago

User 2: That could work, but what about setting the proactiveIdleStop custom property to true?

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Rickie

5 days ago

User 3: Setting the Number of instances to a value greater than zero could also help.

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Yesenia

7 days ago

User 2: I agree, that way we can keep at least one instance available.

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Jestine

10 days ago

I think we should enable application lazy start with elasticity mode.

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Abel

12 days ago

I think we should enable application lazy start with elasticity mode.

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Annabelle

1 months ago

That makes sense too. It's important to prevent instances from being removed unnecessarily. Thanks for sharing your perspective, Jaleesa.

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Sharmaine

1 months ago

Option C looks like the way to go. Setting the number of instances to a value greater than zero should ensure at least one instance is always available.

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Latrice

12 days ago

Agreed, that seems like the most reliable solution.

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German

13 days ago

Yeah, setting the number of instances to a value greater than zero will keep at least one instance available.

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Tammy

14 days ago

I think option C is the best choice.

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Jaleesa

2 months ago

I disagree, I believe the correct answer is D) Disable the option ''If other dynamic clusters need resources, stop all instances of this cluster during periods of inactivity''. This will ensure that instances are not removed during peak load on another dynamic cluster.

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Annabelle

2 months ago

I think the answer is C) Set the Number of instances to a value greater than zero. This way, at least one instance will always be available.

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