SALESFORCE-PD1 User Interface Practice Question
A developer is building a Lightning Web Component and needs to execute code as soon as the component is inserted into the DOM. Which lifecycle hook should be used?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
connectedCallback
connectedCallback() is invoked when a component is inserted into the DOM.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
renderedCallback
Why it's wrong here
This hook is executed after every render of the component.
- ✗
constructor
Why it's wrong here
The constructor is called when the component is created, before it is inserted into the DOM.
- ✓
connectedCallback
Why this is correct
This hook is executed when the component is inserted into the DOM.
- ✗
disconnectedCallback
Why it's wrong here
This hook is executed when the component is removed from the DOM.
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Salesforce exam blueprint
This SALESFORCE-PD1 practice question is part of Courseiva's free Salesforce certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the SALESFORCE-PD1 exam.