SALESFORCE-PD1 Developer Fundamentals Practice Question
Which collection type stores elements as key-value pairs in Apex?
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
✓
Map
A Map stores key-value pairs where each unique key maps to a single value.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Set
Why it's wrong here
Sets store collections of unique single values without keys.
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Array
Why it's wrong here
Arrays are ordered index-based collections similar to lists.
- ✗
List
Why it's wrong here
Lists store ordered collections of indexed elements.
- ✓
Map
Why this is correct
Maps store elements as key-value pairs for rapid retrieval by key.
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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.