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WithoutBook LIVE Mock Interviews Salesforce Lightning Related interview subjects: 13

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Know the top Salesforce Lightning interview questions and answers for freshers and experienced candidates to prepare for job interviews.

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Ques 1

What is the Lightning App Development Lifecycle?

The Lightning App Development Lifecycle involves creating, deploying, and managing Lightning apps and components.

Example:

It includes stages like development, testing, packaging, and deployment of Lightning components and apps.
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Ques 2

How can you optimize performance in Salesforce Lightning components?

Performance optimization in Salesforce Lightning involves reducing the number of server calls, optimizing code, and using features like caching.

Example:

Implementing client-side caching and minimizing server round trips are strategies for optimization.
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Ques 3

Explain Lightning Data Service (LDS).

Lightning Data Service is a standard controller for Lightning components that enables efficient access to data without the need for Apex code.

Example:

LDS automatically loads and caches records, reducing the need for server calls in Lightning components.
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Ques 4

What is Lightning Out?

Lightning Out allows you to embed Lightning components in external web pages using JavaScript.

Example:

It extends the use of Lightning components beyond the Salesforce platform.
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Ques 5

How can you handle security in Salesforce Lightning components?

Security in Salesforce Lightning components is managed through access settings, Lightning Component framework security, and Apex class security.

Example:

You can control access to Lightning components by setting user profiles, permission sets, and ensuring secure Apex code.
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Ques 6

How can you implement client-side caching in Lightning components?

Client-side caching in Lightning components can be implemented using Lightning Data Service (LDS) or browser caching.

Example:

LDS automatically caches records, and you can use the browser's caching mechanism for static resources.
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Ques 7

How can you communicate between Lightning components in different Aura frameworks?

You can use Lightning Message Service to communicate between Lightning components in different Aura frameworks.

Example:

It enables communication across the DOM and between Aura components in different frameworks.
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