Salesforce Exam ARC-101 Topic 8 Question 26 Discussion

Actual exam question for Salesforce's ARC-101 exam

Question #: 26
Topic #: 8

A conglomerate is designing a Lightning Web Component (LWC) to display transactions aggregated from different sources. Their current system landscape is as follows:

1. Transactions are created at any time through their various on-premise and cloud-based systems.

2. All necessary transactions are replicated to a custom Transaction object in Salesforce. It is updated periodically so it only has a subset of the necessary transactions between updates.

3. Middleware supports publish-subscribe interactions and provides RESTful Enterprise APIs that can retrieve transactions from on-premise and cloud-based systems.

The company wants to address a usability concern regarding incomplete data displayed on the LWC component. What should the Integration Architect specify so the LWC will be able to display all the required transactions?

AUse the Continuation class to call the Enterprise APIs and then process the response in a callback method.

BLet the Lightning Data Service with an wire adapter display new values when the custom object records change.

CCall the Enterprise APIs directly from the LWC's JavaScript code and redisplay the LWC on receipt of the API response.

DPublish a Platform Event, have the middleware subscribe and update the custom object on receipt of Platform Event.

Show Suggested Answer

Suggested Answer: B

by Yoko at Nov 24, 2023, 02:45 AM

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Sage

1 months ago

Hey, at least the question didn't ask us to use a Batch Apex job to fetch the transactions. That would have been a real head-scratcher!

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Tanja

1 months ago

Wait, there's a 'Continuation class'? I thought we were talking about Salesforce, not some old-school Java enterprise app!

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Camellia

16 days ago

A: Yeah, the Continuation class is used to call Enterprise APIs in Salesforce.

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Brice

1 months ago

I'm surprised option A) even made it as a choice. Using the Continuation class just sounds like a recipe for callback hell. C) is definitely the way to go.

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Bobbye

4 days ago

C) Call the Enterprise APIs directly from the LWC's JavaScript code and redisplay the LWC on receipt of the API response.

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Joaquin

7 days ago

I'm surprised option A) even made it as a choice. Using the Continuation class just sounds like a recipe for callback hell.

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Sabine

16 days ago

A) Use the Continuation class to call the Enterprise APIs and then process the response in a callback method.

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Nicholle

2 months ago

D) is an interesting idea, but it might add unnecessary complexity with the Platform Event and middleware. I think C) is the cleanest solution to the problem.

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Gladis

17 days ago

I think B) could also work well if we want real-time updates without additional complexity.

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Rana

27 days ago

But wouldn't using the Continuation class in A) provide a more robust solution?

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Nydia

1 months ago

I agree, C) seems like the most straightforward approach.

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Deeanna

2 months ago

I'm not sure about option B. Relying on the Lightning Data Service might not be sufficient if the custom object is not updated frequently enough. We need a more proactive approach to fetch the data.

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Nohemi

19 days ago

D) Publish a Platform Event, have the middleware subscribe and update the custom object on receipt of Platform Event.

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Cyndy

28 days ago

C) Call the Enterprise APIs directly from the LWC's JavaScript code and redisplay the LWC on receipt of the API response.

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Adelaide

1 months ago

A) Use the Continuation class to call the Enterprise APIs and then process the response in a callback method.

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Felicitas

2 months ago

C) looks like the most straightforward approach to me. Calling the APIs directly from the LWC component and updating the UI accordingly seems like the best way to ensure we display all the required transactions.

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Tonette

17 days ago

D) Publish a Platform Event, have the middleware subscribe and update the custom object on receipt of Platform Event.

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Corrinne

29 days ago

B) Let the Lightning Data Service with a wire adapter display new values when the custom object records change.

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Marsha

1 months ago

A) Use the Continuation class to call the Enterprise APIs and then process the response in a callback method.

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Bobbye

1 months ago

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Arlean

1 months ago

A) Use the Continuation class to call the Enterprise APIs and then process the response in a callback method.

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Nickole

1 months ago

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Yuki

2 months ago

A) Use the Continuation class to call the Enterprise APIs and then process the response in a callback method.

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Armando

2 months ago

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Iluminada

2 months ago

I see both points, but I think option B could also work well. Letting the Lightning Data Service with a wire adapter display new values when custom object records change can provide a seamless user experience.

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Beata

3 months ago

I disagree, I believe option D is the way to go. Publishing a Platform Event and having the middleware update the custom object will ensure real-time updates and accurate data on the LWC.

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Vilma

3 months ago

I think option A is the best choice because using the Continuation class will allow us to call the Enterprise APIs asynchronously and process the response efficiently.

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