Salesforce PDI - Salesforce Certified Platform Developer 1 (SP25)

UsingSecurity.stripInaccessibleensures compliance with field-level security (FLS) and prevents users from accessing fields they do not have permission to view. In this scenario:

The commission field is inaccessible to Sales Assistants, andSecurity.stripInaccessiblewill automatically remove this field from the result set.

It prevents runtime errors when a user without proper access attempts to retrieve restricted fields.

Validation Rule Violations:

Salesforce automatically throws exceptions for validation rule violations during DML operations.

is used to display these errors to the user.

Why Not Other Options?

A: Controller attributes alone cannot handle validation messages.

B: A try/catch block does not address validation rule violations effectively.

D:Database.upsert()method is not related to validation error handling.

A: Custom objects and fields are the fundamental building blocks of the database layer in Salesforce for creating and storing custom data.

C: Roll-up summary fields are a declarative feature used to perform calculations (e.g., sum, count) on child records and display the results on the parent record.

D: Relationships (e.g., master-detail, lookup) are essential for defining how data objects are related to each other.

Why not other options?

B: Triggers are a programmatic solution, which goes against the declarative-only requirement.

E: Flows are used for automation and logic, not for building the database layer.

Salesforce Data Modeling

A record-triggered flow is the recommended tool for this scenario because it:

Can compare theContact.MailingStatefield with thePreferred_Locations__cfield on theJob__crecord.

Automatically updates or calculates values whenever changes are made, keeping data in sync without requiring Apex code or custom development.

Comprehensive and Detailed Explanation From Exact Extract:

To determine the value of x when it is written to the debug log, we need to analyze the Apex code step by step, focusing on the behavior of the do-while loop and how it affects the variable x. Let’s break down the code execution systematically, referencing Salesforce’s official Apex Developer Guide.

Code Analysis:

The given Apex code is:

apex

Copy

Integer x = 0;

do {

x++;

} while (x < 1);

System.debug(x);

Step 1: Initial State

Integer x = 0;: The variable x is initialized to 0. The Apex Developer Guide states: “An Integer in Apex is a 32-bit number that does not include decimal points, initialized to 0 by default if no value is provided” (Salesforce Apex Developer Guide, Primitive Data Types). Here, x is explicitly set to 0.

Step 2: Understanding the do-while Loop

A do-while loop in Apex executes the loop body at least once before evaluating the condition. The Apex Developer Guide explains: “The do-while loop executes the block of code in the do statement first, then checks the condition in the while statement. If the condition is true, the loop continues; otherwise, it exits” (Salesforce Apex Developer Guide, Loops).

The loop body is:

apex

Copy

x++;

This increments x by 1 using the post-increment operator (++). The Apex Developer Guide confirms: “The ++ operator increments the value of the variable by 1” (Salesforce Apex Developer Guide, Expressions and Operators).

The condition is:

apex

Copy

while (x < 1);

The loop continues as long as x < 1 evaluates to true.

Step 3: Loop Execution

First Iteration:

Initial value: x = 0.

Execute the loop body: x++ → x becomes 1 (0 + 1).

Evaluate the condition: x < 1 → 1 < 1 → false (since 1 is not less than 1).

Since the condition is false, the loop exits after the first iteration.

After the Loop:

The value of x is now 1.

The do-while loop guarantees at least one execution, which is why x is incremented once before the condition check fails.

Step 4: Debug Statement

System.debug(x);: This writes the value of x to the debug log. At this point, x = 1. The Apex Developer Guide states: “System.debug outputs the value of the specified variable to the debug log for troubleshooting” (Salesforce Apex Developer Guide, System Class).

Therefore, the debug log will show 1.

Evaluating the Options:

A. 0: Incorrect. The initial value of x is 0, but the do-while loop increments x to 1 in the first iteration, and the loop exits because the condition x < 1 is false. The debug log shows the final value of x, which is 1.

B. 2: Incorrect. The loop only runs once because after the first iteration, x becomes 1, and the condition x < 1 fails (1 < 1 is false). There is no second iteration to increment x to 2.

C. 1: Correct. As calculated, the loop executes once, incrementing x from 0 to 1, and then exits because the condition x < 1 is false. The debug log outputs x = 1.

D. 3: Incorrect. The loop does not run enough times to increment x to 3. It only runs once, setting x to 1.

Why Option C is Correct:

Option C (1) is correct because:

The do-while loop executes the body (x++) exactly once, incrementing x from 0 to 1.

The condition x < 1 evaluates to false when x = 1, causing the loop to exit after the first iteration.

The System.debug(x) statement outputs the final value of x, which is 1.

This behavior aligns with Apex loop semantics as defined in the Salesforce Apex Developer Guide.

Handling Typos:

The code in the image contains a typo: “salesforce” is randomly inserted in the middle of the do-while loop. This appears to be an artifact of the image and not part of the intended code. For analysis, we ignore this text and treat the code as:

apex

Copy

Integer x = 0;

do {

x++;

} while (x < 1);

System.debug(x);

There are no other syntactic issues in the code that affect the execution or outcome.

Example for Clarity:

To illustrate, here’s how the code executes:

Integer x = 0; // x is 0

do {

x++; // First iteration: x becomes 1

} while (x < 1); // Condition: 1 < 1 → false, exit loop

System.debug(x); // Outputs: 1

If this code were run in a Salesforce org, the debug log would show:

DEBUG|1

Infrastructure as a Service (IaaS)is the best model for the scenario described because it provides on-demand access to compute, storage, and networking resources that are ideal for a scalable server cluster. IaaS allows the engineering team to rent infrastructure resources without having to invest in physical hardware, making it perfect for temporary or fluctuating workloads, such as scalability testing.

Key Characteristics of IaaS:

Full control over the operating systems and applications running on the servers.

Flexible resource allocation to support high scalability.

Ideal for custom software testing where specific server configurations may be needed.

Why not the other options?

PaaS (Platform as a Service):While PaaS is excellent for application development and deployment, it abstracts the infrastructure layer, which would limit the engineering team's control over the cluster's configuration.

SaaS (Software as a Service):SaaS delivers fully managed applications, not infrastructure or testing environments. It’s irrelevant for this use case.

BaaS (Backend as a Service):BaaS is tailored to mobile or web application backend development, providing APIs and pre-built services, not infrastructure for a server cluster.

Platform Developer References:

While this question is broader than Salesforce-specific concepts, understandingIaaS vs. PaaSis relevant when working with Salesforce development. For example:

Salesforce operates as aPaaS(e.g., Force.com platform), allowing developers to build and deploy applications without managing underlying servers.

Testing scalability and performance at an infrastructure level (as in the question) would fall underIaaSconcepts, which Salesforce developers might encounter when integrating external services or infrastructure like AWS, Azure, or Google Cloud.

This foundational knowledge complements your understanding of cloud services in the Salesforce ecosystem.

WhyTest.loadData()?

Simplifies test data creation by loading data from a CSV file stored as a static resource.

Ideal for testing specific field values in bulk.

Why Not Other Options?

A: Querying data from the org violates test isolation principles.

C: Anonymous Apex cannot be used within test classes.

D: JSON files in Documents are not supported byTest.loadData().

SOSL:

Designed for full-text searches, making it faster for unstructured or broad text searches across multiple objects.

Ideal for searching multiple fields simultaneously.

SOQL:

Optimized for structured queries where you need more control over filtering and relationships.

Can return up to 50,000 records in a single query, while SOSL returns only 2,000.

CandDare incorrect because SOSL is faster for text searches, not SOQL.

B:@testSetupinserts data once and shares it across all test methods in the class, saving system resources.

D:@isTest(SeeAllData=true)is incompatible with@testSetupdue to their differing purposes for managing test data.

The Lightning Component Framework simplifies development by providing built-in device awareness, enabling components to adapt automatically for different devices such as mobile phones, tablets, and desktops.