Salesforce Interview Questions with Answers Part 49

1. What is a Mashup?

A mashup is a Web page or application that combines data or functionality from two ore more sources to create a new service.

http://www.infallibletechie.com/2018/01/what-is-mashup.html

2. What is JSON?

JSON stands for Java Script Object Notation. It is a lightweight and text-based format. Supports with UTF-8 and date-time information in ISO8601 format. It uses string value pairs for storing data.

http://www.infallibletechie.com/2018/01/what-is-json.html

3. Force.com Streaming API

Use Streaming API to receive notifications for changes to Salesforce data that match a SOQL query you define, in a secure and scalable way.

http://www.infallibletechie.com/2015/03/forcecom-streaming-api.html

4. Salesforce APIs and supported formats

http://www.infallibletechie.com/2018/01/salesforce-apis-and-supported-formats.html

5. What is a PushTopic?

A PushTopic is record that

1. Defines a channel.

2. Determines what events will cause a notification. Event is a modification of a field while creating, updating, deleting or undeleting a record.

3. Describes the data the notification will contain.


Used in Streaming API.

http://www.infallibletechie.com/2018/01/what-is-pushtopic.html

6. What is WSDL?

Web Services Description Language is an XML format for describing network services as a set of endpoints operating on messages containing either document-oriented or procedure-oriented information.

http://www.infallibletechie.com/2018/01/what-is-wsdl.html

7. SOAP API Methods using WSDL from Salesforce

http://www.infallibletechie.com/2018/01/soap-api-methods-using-wsdl-from.html

8. Difference between SOAP and REST APIs

http://www.infallibletechie.com/2014/03/blog-post.html

9. HTTP Methods available in Salesforce

http://www.infallibletechie.com/2018/01/http-methods-available-in-salesforce.html

10. What is the use of done attribute in Salesforce REST API response?

http://www.infallibletechie.com/2018/01/what-is-use-of-done-attribute-in.html

11. What is the Chatter REST API?

http://www.infallibletechie.com/2018/01/what-is-chatter-rest-api.html

12. Lock Contention

http://www.infallibletechie.com/2018/01/lock-contention.html

13. How to limit maximum number of characters that can be typed into ui:inputText and other input fields in Lightning Components?

http://www.infallibletechie.com/2018/01/how-to-limit-maximum-number-of.html

14. Cross-Org Adapter for Salesforce Connect

https://help.salesforce.com/articleView?id=xorg_adapter_about.htm&type=5

15. Continuation Class

Use the Continuation class to make callouts asynchronously to a SOAP or REST Web service.

https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_class_System_Continuation.htm#apex_class_System_Continuation

16. How to avoid or reduce SOQLs in Salesforce?

http://www.infallibletechie.com/2018/02/how-to-avoid-or-reduce-soqls-in.html

17. A custom object contains some records, now my requirement is to create field in this object with master-detail relationship. Can we create master-detail relationship in this case? 

No, directly we cannot create master-detail relationship if the custom object contains existing records.

Cheers!!!

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