SALESFORCE-PD1 Practice Test 20 — 15 Questions

Question 1

A developer writes a SOQL query using the FORMAT() keyword. What is the purpose of this keyword?

Accepted Answer

To return number, date, and currency fields formatted according to the user's locale. FORMAT() formats currency, date, time, and numerical fields according to the current user's locale settings.

Answer

To ensure SOQL query syntax is validated before execution

Answer

To format query results into JSON format

Answer

To convert string fields into uppercase

Question 2

What is the correct file extension for a Lightning Web Component HTML template file?

Accepted Answer

.html. LWC HTML template files must use the .html extension and share the component base name.

Answer

.vfp

Answer

.page

Answer

.cmp

Question 3

Which THREE statements are true regarding asynchronous Apex governor limits and execution behavior? (Choose three.)

Accepted Answer

Asynchronous Apex jobs execute in their own separate transaction with independent governor limits.. Asynchronous jobs have higher limits (heap, CPU time), run in separate transactions, and can be monitored via AsyncApexJob.

Answer

Future methods can be chained indefinitely without any depth limitations.

Answer

Batch Apex jobs cannot make external web service callouts.

Question 4

Which context variable should a developer use in an Apex trigger to determine if the trigger was fired by an update operation rather than an insert?

Accepted Answer

Trigger.isUpdate. Trigger.isUpdate returns true if the trigger was fired due to an update operation.

Answer

Trigger.isExecuting

Answer

Trigger.isBefore

Answer

Trigger.isInsert

Question 5

A developer receives a System.LimitException: Too many SOQL queries: 101 when running a complex unit test. The test class inserts a large volume of test records that inadvertently cause a trigger to execute multiple queries inside a loop. What is the most effective way to reset the governor limits specifically for the code being tested?

Accepted Answer

Wrap the test assertion code between Test.startTest() and Test.stopTest().. Test.startTest() resets all governor limits for the code executed immediately following it, up until Test.stopTest().

Answer

Mark the test method with @isTest(SeeAllData=true).

Answer

Wrap the trigger logic in a Database.setSavepoint() block.

Answer

Use Limits.getLimitQueries() inside the test method.

Question 6

An Apex trigger performs a callout to an external web service and a developer is writing a unit test for this trigger. How should the developer handle the callout during the test execution?

Accepted Answer

Use Test.setMock(HttpCalloutMock.class, new MockHttpResponseGenerator()). Apex runtime throws an exception if a callout is attempted in a test without being mocked. The developer must implement the HttpCalloutMock interface and use Test.setMock().

Answer

Use System.runAs() to execute the test under a user with API Enabled permissions

Answer

Wrap the trigger logic inside a Test.startTest() and Test.stopTest() block without mocks

Answer

Set the remote site setting dynamically inside the test method before the trigger fires

Question 7

Which TWO of the following are valid ways to trigger an Apex test run?

Accepted Answer

Apex Test Execution page in Setup.. Tests can be run from the Developer Console and from the Apex Test Execution page.

Answer

From the User record.

Answer

By editing an Apex class.

Answer

From a Workflow Rule.

Question 8

A developer is working with a Lightning Web Component and needs to ensure reactive updates occur when an object property or array element changes inside a tracked property. What is the correct approach in modern LWC?

Accepted Answer

Reassign the property reference (e.g., this.myObj = {...this.myObj}).. Assigning a new object or array reference (mutation via replacement) triggers reactivity in LWC tracked properties.

Answer

Use @track on every inner property.

Answer

Call component.forceUpdate().

Answer

Mutate the nested property directly; LWC automatically deep-tracks all mutations.

Question 9

An Apex trigger processes a large volume of Opportunity updates. The developer uses Database.update(opps, false) to allow partial success. How should the developer inspect the results to handle any failures?

Accepted Answer

Iterate over the returned List<Database.SaveResult> and check the isSuccess() method.. Database methods returning partial success provide a list of Database.SaveResult objects that contain error details.

Answer

Inspect the Trigger.errors context variable.

Answer

Wrap the Database.update call in a try-catch block and inspect the DMLException methods.

Answer

Query the AsyncApexJob object to check for error logs.

Question 10

A developer needs to access private methods in an Apex class for unit testing without making them public. Which annotation is the most appropriate?

Accepted Answer

@TestVisible. @TestVisible allows test classes to access private and protected members of a class.

Answer

@RemoteAction

Answer

@isTest

Answer

@ReadOnly

Question 11

When debugging a trigger, how can you view the flow of execution including entry and exit points of methods?

Accepted Answer

By viewing the Call Stack.. The Call Stack in the Debug Log shows the hierarchy of method calls.

Answer

By examining the heap size.

Answer

By running an Apex report.

Answer

By checking the Database log.

Question 12

A developer needs to execute a batch job every Sunday at midnight. Which interface must the scheduling class implement?

Accepted Answer

Schedulable. Scheduled Apex requires implementing the Schedulable interface.

Answer

Queueable

Answer

Database.Batchable<SObject>

Answer

Database.AllowsCallouts

Question 13

A developer is writing a Visualforce page and wants to include standard Salesforce styling and icons. What tag should be added to the top of the Visualforce page?

Accepted Answer

. includes the Salesforce Lightning Design System styles and assets in a Visualforce page.

Answer

<apex:lightningStyleguide />

Answer

<apex:stylesheet value="{!$Resource.SLDS}" />

Answer

<apex:includeLightning />

Question 14

What must be true for a developer to deploy Apex code to a production environment?

Accepted Answer

All tests must pass and coverage must be at least 75%. Deploying Apex to production requires that all tests in the org pass and that overall Apex code coverage is at least 75%. Salesforce enforces this at deployment time; if any test fails or coverage falls below the threshold, the deployment is rejected. Coverage is calculated across all Apex classes and triggers in the org, not just the newly deployed code.

Answer

The code must have 100% test coverage

Answer

Tests do not need to be run if the code was tested in sandbox

Answer

Only the new classes require coverage

Question 15

Which lifecycle hook in a Lightning Web Component is called after every render of the component?

Accepted Answer

renderedCallback. The renderedCallback hook is invoked after every render of the component, including the initial render and subsequent re-renders. It is used for logic that needs to run after the DOM is updated, such as manipulating the DOM or accessing rendered elements.

Answer

constructor

Answer

connectedCallback

Answer

errorCallback