PD1 Integration Architecture 5

Question 1

When using the Salesforce Streaming API, what is the default message retention duration for PushTopic events?

Accepted Answer

24 hours

Answer

Salesforce retains PushTopic Streaming API messages for 24 hours, allowing replay of missed events within that window.

Question 2

A developer needs to parse a JSON response body returned from an external REST API callout in Apex. Which approach is MOST common?

Accepted Answer

Use JSON.deserialize() with a matching Apex class

Answer

JSON.deserialize() (or JSON.deserializeUntyped()) maps the JSON response body to a matching Apex class or Map structure.

Question 3

Which governor limit applies specifically to the total number of callouts (HTTP requests and web service calls) per Apex transaction?

Accepted Answer

100

Answer

Salesforce enforces a limit of 100 HTTP callouts per Apex transaction across both synchronous and asynchronous contexts.

Question 4

An external system sends a SOAP request to Salesforce. Which Salesforce endpoint type handles inbound SOAP web service calls?

Accepted Answer

Apex SOAP Web Service class endpoint

Answer

Global Apex classes with `webService` keyword methods generate a WSDL and receive inbound SOAP calls at a generated endpoint.

Question 5

What is the key difference between Platform Events and PushTopic Streaming events in Salesforce?

Accepted Answer

Platform Events are custom event-driven objects; PushTopics are based on SOQL queries against standard/custom objects

Answer

Platform Events are custom objects defined in Setup for event-driven architecture, while PushTopics use SOQL queries to stream changes on existing sObjects.

(PD1) Salesforce Certified Platform Developer 1 Practice Test

(PD1) Salesforce Certified Platform Developer 1 Practice Test

PD1 Integration Architecture 5