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Salesforce PDI Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Salesforce Fundamentals	12%	- Data Model Basics - Salesforce Platform Architecture
Topic 2: User Interface	10%	- Lightning Component Basics - Lightning Web Components Overview
Topic 3: Data Modeling and Management	20%	- Data Management Tools - Standard and Custom Objects - Relationships and Schema Design
Topic 4: Testing, Debugging, and Deployment	12%	- Debugging Techniques - Unit Testing in Apex - Deployment Tools and Practices
Topic 5: Logic and Process Automation	46%	- Apex Basics - Asynchronous Apex - Flow and Process Automation - Triggers

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Salesforce Platform Developer I (PDI) Sample Questions (Q28-Q33):

NEW QUESTION # 28
Universal Containers (UC) uses a custom object called Vendor. The Vendor custom object has a master-detail relationship with the standard Account object.
Based on some internal discussions, the UC administrator tried to change the master-detail relationship to a lookup relationship, but was not able to do so.
What is a possible reason that this change was not permitted?

A. Some of the Vendor records have null for the Account field.
B. The Account object has a roll up summary field on the Vendor object.
C. The Account object does not allow changing a field type for a custom field.
D. The organization wide default for the Vendor object is Public Read/Write.

Answer: B

Explanation:
Master-detail relationships allow roll-up summary fields to aggregate data from child records. If a roll-up summary field exists on the Account object, the relationship cannot be changed to a lookup because lookup relationships do not support roll-up fields.
Why not other options?
A: Null values in the Vendor records do not prevent the change.
C: Custom fields can have their types changed as long as dependencies like roll-up fields are not present.
D: Organization-wide defaults do not affect the ability to change relationships.
Salesforce Master-Detail Relationships and Roll-Up Summary Fields

NEW QUESTION # 29
A developer needs to create a custom Interface in Apex.
Which three considerations must the developer keep in mind while developing the Apex Interface?
Choose 3 answers

A. The Apex interface class access modifier can be set to Private, Public, or Global.
B. A method defined In an Apex Interface cannot have an access modifier.
C. The Apex class must be declared using the interface keyword.
D. New methods can be added to a public interface within a released package.
E. A method implementation can be defined within the Apex Interface.

Answer: B,C,E

NEW QUESTION # 30
Which type of code represents the view in the MVC architecture on the Force.com platform?

A. An apex method that executes SOQL to retrieve a list of cases
B. Validation rules for a page layout that includes a related list of cases
C. A visualforce page that dysplays information about case records by iterating over a list of cases
D. An apex method in an extension that returns a list of cases

Answer: C

NEW QUESTION # 31
Which three data types can a SOQL query return?
Choose 3 answers

A. O Long
B. Double
C. dg Integer
D. List
E. sObject

Answer: B,D,E

Explanation:
* sObject:SOQL queries can return single or multiple records assObjectinstances.
* List:SOQL queries often return results as aListofsObject.
* Double:SOQL aggregate queries can return numeric data types likeDouble(e.g., COUNT, SUM).
Reference:SOQL Query Return Types
Incorrect Options:
B (Long):SOQL does not directly returnLongvalues.
D (Integer):Aggregate results useDouble, notInteger

NEW QUESTION # 32
Which two are phases in the Aura application event propagation framework?
Choose 2 answers

A. Emit
B. Default
C. Bubble
D. Control

Answer: B,C

Explanation:
Answers B, C are correct. Aura components use component bundles that separate controller, helper, renderer, style, and design resources. Client-side controller and helper JavaScript coordinate UI events and server actions, while application and component events follow the framework's event propagation model. Good Aura design keeps reusable logic in helpers and avoids unnecessary application-wide events. The other options either use the wrong platform feature, apply at the wrong layer, or ignore a key Salesforce constraint.
For Platform Developer I, the important point is not just syntax; it is choosing the feature that aligns with transaction behavior, security enforcement, maintainability, and supported metadata capabilities. Reference focus: Lightning Web Components Developer Guide, Lightning Component Reference, Aura Components Developer Guide, and Visualforce Developer Guide. This distinction is important in production orgs because small design mistakes can create deployment failures, runtime exceptions, data-quality defects, or user-visible security gaps once automation is executed in bulk or from multiple entry points.

NEW QUESTION # 33
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