Salesforce CRM Software Engineer Mock Interview

Practice 25 Salesforce CRM Software Engineer interview questions covering Apex, Lightning, integrations, and platform architecture.

Question 16 of 25

What are the differences between blocking and non-blocking calls in the context of Node.js?

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William Swansen

William Swansen has worked in the employment assistance realm since 2007. He is an author, job search strategist, and career advisor who helps individuals worldwide and in various professions to find their ideal careers.

During an interview as a Salesforce software engineer, you can anticipate that most questions will be technical or operational. The best way to prepare for this type of interview is to first conduct research on the company to understand the type of programming tthe Salesforce engineering team does and the features of the products they produce. Next, you should carefully review the processes you use as a software engineer to develop programs. Having a clear understanding of these will help you respond to any question the interviewer may ask.

William Swansen

"Blocking calls require that the program waits until a non-JavaScript operation is completed before additional JavaScript commands can be executed. Non-blocking calls can execute commands asynchronously at any time. This characteristic results in non-blocking calls having a performance advantage. Node.js uses both of these types of calls."

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