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Salesforce ARC-101 Exam - Topic 8 Question 64 Discussion

What is the first thing an Integration Architect should validate if a callout from a Lightning Web Component to an external endpoint is failing?
B) The endpoint URL has been added to Content Security Policies.
A) The endpoint domain has been added to Cross-Origin Resource Sharing.
C) The endpoint URL has added been to an outbound firewall rule.
D) The endpoint URL has been added to Remote Site Settings.

Salesforce ARC-101 Exam - Topic 8 Question 64 Discussion

Actual exam question for Salesforce's ARC-101 exam
Question #: 64
Topic #: 8
[All ARC-101 Questions]

What is the first thing an Integration Architect should validate if a callout from a Lightning Web Component to an external endpoint is failing?

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Suggested Answer: B

by Krissy at Aug 01, 2025, 04:20 AM

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Gail
7 months ago
Wait, isn't the firewall rule more important?
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Monroe
7 months ago
Nah, Remote Site Settings is the key here!
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Santos
7 months ago
I thought it was all about the Content Security Policies.
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Mohammad
8 months ago
Really? I didn't know CORS was the first step!
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Angella
8 months ago
Definitely check the Cross-Origin Resource Sharing first!
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Shayne
8 months ago
I’m a bit confused. I thought outbound firewall rules were also important, but I can’t recall if they come before checking the other settings.
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Jaime
8 months ago
I practiced a similar question, and I feel like Remote Site Settings could be the right answer. It’s about allowing Salesforce to communicate with external sites, right?
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Jolanda
9 months ago
I'm not entirely sure, but I remember something about Content Security Policies being important too. Maybe that's the first step?
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Anissa
9 months ago
I think the first thing to check is if the endpoint domain has been added to Cross-Origin Resource Sharing. That seems crucial for web components.
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Alyce
9 months ago
Ah, I remember learning about this in my Integration Architect training. The first thing to validate is the Remote Site Settings. That's where you configure the allowed external endpoints. Gotta make sure that's set up properly.
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Lavonne
9 months ago
Okay, let me think this through step-by-step. First, I need to make sure the endpoint domain is added to CORS. Then I'll double-check the Content Security Policies and Remote Site Settings. Shouldn't be too hard to figure out.
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Olive
9 months ago
Hmm, I'm not totally sure about this one. I know we need to configure some security settings, but I can't remember the exact steps. Guess I'll have to think it through carefully.
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Dannette
10 months ago
This seems like a pretty straightforward question about security configurations for external callouts. I'm pretty confident I know the answer.
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Dana
10 months ago
D all the way, baby! Remote Site Settings is the key to unlocking that external endpoint. It's like the secret handshake of the Salesforce world.
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Royal
10 months ago
Hmm, I'd say A. Cross-Origin Resource Sharing. Gotta keep those origins in check, am I right? Or is that just me being paranoid?
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Maile
6 months ago
All good points! But A feels like the first step to me.
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Johnson
7 months ago
True, but B is also crucial for security.
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Brigette
7 months ago
I think A is definitely important. Can't have those cross-origin issues!
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Leonida
8 months ago
Don't forget about D! Remote Site Settings are key too.
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Bernadine
10 months ago
I'm not sure, but maybe A) The endpoint domain has been added to Cross-Origin Resource Sharing could also be a valid option.
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Talia
11 months ago
I agree with Helene. If the callout is failing, it's likely a CORS issue, so D) makes sense.
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Helene
11 months ago
I think the first thing to validate is D) The endpoint URL has been added to Remote Site Settings.
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Brynn
11 months ago
I'm going with B. Content Security Policies. Wouldn't want any rogue scripts sneaking in and messing things up, you know?
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Brandon
10 months ago
I see your point, but I still think B is the best choice. Content Security Policies play a big role in protecting the application.
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Delpha
10 months ago
Actually, I believe A is the correct option. Cross-Origin Resource Sharing is crucial for secure communication.
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Maile
10 months ago
I agree with you, D is the right choice. It's important to whitelist the endpoint URL.
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Derick
10 months ago
I think D is the correct answer. Remote Site Settings need to be updated for external calls.
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Cheryl
12 months ago
Definitely D. Remote Site Settings is the first thing to check. Gotta make sure that Salesforce knows where to look for that external endpoint.
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Odette
10 months ago
Remote Site Settings is a key step in ensuring successful callouts from Lightning Web Components to external endpoints.
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Lisbeth
10 months ago
It's always a good idea to validate Remote Site Settings first when troubleshooting callout issues from Lightning Web Components.
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Ellsworth
10 months ago
Make sure to double check that the endpoint URL has been added to Remote Site Settings to avoid any callout failures.
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Breana
10 months ago
I agree, D is the correct option. Remote Site Settings is crucial for allowing Salesforce to access external endpoints.
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