Salesforce Exam Platform Developer II Topic 3 Question 116 Discussion

Actual exam question for Salesforce's Platform Developer II exam

Question #: 116
Topic #: 3

A Visualforce page needs to make a callout to get billing information and tax information from two different REST endpoints. The information needs to be

displayed to the user at the same time and the return value of the billing information contains the input for the tax information callout. Each endpoint might take up to two minutes to process.

How should a developer implement the callouts?

AAn HTTP REST callout for the billing callout and a Continuation for the tax callout

BA Continuation for both the billing callout and the tax callout

CAn HTTP REST callout for both the billing callout and the tax callout

DA Continuation for the billing callout and an HTTP REST callout for the tax callout

Show Suggested Answer

Suggested Answer: B

Using Continuation for both callouts is the optimal solution when you have long-running callouts in a Visualforce page, as it allows the page to wait for a long-running process without tying up server resources. The Continuation pattern is specifically designed for scenarios where the request-response cycle could exceed the timeout limits. Reference: Visualforce Developer Guide -- Continuations

by Matilda at Jul 10, 2025, 12:29 AM

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