IBM C1000-065 Exam - Topic 9 Question 19 Discussion

Actual exam question for IBM's C1000-065 exam

Question #: 19
Topic #: 9

In a Data Module a developer creates a joined view from two tables (a and b) and then joins this to another table (c). What would be the execution logic in the database?

AAll queries are collapsed and a standard join across all three tables (a, b, c) is performed.

BThe columns used in table (c) are are joined on the key to table (b) first and then the results are post-joined to table (a).

CIt makes no difference to the execution as a joined view is only used to group data items in a logical manner to help the business user find their data.

DThe joined view (a and b) is evaluated and all results are then post-joined to the other table (c).

Show Suggested Answer

Suggested Answer: D

by Bernardine at May 07, 2022, 02:24 PM

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Maile

4 months ago

I’m surprised this is even a question, it’s pretty basic logic!

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Rikki

4 months ago

C seems off, joined views definitely impact execution.

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Gary

4 months ago

Wait, are we sure about that? I thought it could be A too.

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Gilberto

4 months ago

Totally agree with D, that's how it usually works!

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Oliva

5 months ago

I think option D makes the most sense here.

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Jacinta

5 months ago

I’m leaning towards option B, but I’m a bit confused. I thought the order of joins could affect performance, so maybe it’s not as straightforward as it seems.

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Diego

5 months ago

I recall a practice question that mentioned how joined views can help with performance, but I’m not clear if that means they always get evaluated first.

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Lyla

5 months ago

I’m not entirely sure, but I feel like option D sounds familiar. It seems like the joined view would be processed before the final join with table c.

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Ludivina

5 months ago

I think the execution logic might depend on how the database optimizer handles the joins. I remember something about joined views being evaluated first.

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Bong

5 months ago

Hmm, I'm not too familiar with the HPE Virtual Connect SE 100 GD F32 Module for HPE Synergy. I'll need to think this through carefully.

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Lashandra

5 months ago

This question seems straightforward, but I want to make sure I understand the options correctly before selecting my answers.

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Odelia

5 months ago

I'm pretty sure the correct answer is C, a message port. That's the SysML construct used to represent a connection point for an interaction.

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Sean

5 months ago

Hmm, this looks like a question on the convergence of a geometric series. I'll need to think carefully about the conditions for convergence.

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Fallon

5 months ago

Hmm, this looks like a tricky one. I'll need to carefully read through the details and think about the different components involved.

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