SALESFORCE-PD1 Practice Test 5 — 25 Questions

Question 1

A developer is writing a unit test that executes under a specific user context to verify sharing rules. Which method should the developer use to specify the user for the subsequent test operations?

Accepted Answer

System.runAs(). System.runAs() enables developers to run test methods under a specific user context to verify record-level security and sharing rules.

Answer

UserInfo.setUserId()

Answer

Database.setSavepoint()

Answer

Test.setCurrentUser()

Question 2

A developer needs to verify code coverage across an entire Apex organization before deploying code to production. What is the minimum overall Apex code coverage required by Salesforce for production deployment?

Accepted Answer

75%. Salesforce requires a minimum of 75% overall Apex code coverage for deployment to a production organization.

Answer

100%

Answer

50%

Answer

85%

Question 3

A developer writes a trigger that calls a future method. Inside the same transaction, the trigger also performs a DML operation on records that are referenced by the future method. What exception might occur?

Accepted Answer

System.AsyncException due to calling a future method from another asynchronous context or batch. Passing sObject IDs to a future method when the underlying records are locked or modified rapidly in mixed DML or same-transaction contexts can lead to System.AsyncException or unexpected state issues, though specifically mixed DML involves setup and non-setup objects.

Answer

System.LimitException due to query row limits

Answer

System.NullPointerException

Answer

System.TypeException

Question 4

Which log level is best for finding logic flow issues without cluttering the log?

Accepted Answer

DEBUG.. DEBUG is the standard level for custom messages and logic tracing.

Answer

FINEST.

Answer

INFO.

Answer

WARN.

Question 5

Which TWO features of @isTest(SeeAllData=true) should a developer be aware of?

Accepted Answer

It makes tests results dependent on the org's existing data.. It grants access to all org data and can lead to unexpected test results.

Answer

It speeds up test execution.

Answer

It is required for testing standard objects.

Answer

It ignores all governor limits.

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 interfaces must be implemented when creating a scheduled Batch Apex class that also needs to perform web service callouts? (Choose two.)

Accepted Answer

Database.Batchable<SObject>. To run as a scheduled batch with callouts, the class implements Schedulable, Database.Batchable, and Database.AllowsCallouts.

Answer

Queueable

Answer

InstallHandler

Question 8

When using the Salesforce CLI to deploy, what is the 'check-only' flag used for?

Accepted Answer

To validate the metadata without saving it to the org.. It validates the deployment without committing changes to the target org.

Answer

To force the deployment despite test failures.

Answer

To skip the compilation check.

Answer

To run only the tests.

Question 9

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 10

A developer is troubleshooting a transaction that exceeds governor limits due to SOQL queries. Which THREE techniques help prevent hitting SOQL query limits in Apex? (Choose THREE.)

Accepted Answer

Using maps and collections to store query results and perform in-memory lookups instead of querying inside loops.. Avoiding queries in loops, using aggregate queries, and caching results in maps/collections help avoid SOQL query limit issues.

Answer

Executing SOQL queries inside a for loop iterating over all child records.

Answer

Calling Database.query() for every single record processed in a trigger.

Question 11

Which THREE of the following are benefits of using the Salesforce CLI for deployment?

Accepted Answer

Supports automated deployment scripts. CLI offers automation, version control integration, and environment consistency.

Answer

Allows bypassing validation rules in production

Answer

Automatically converts all code to Lightning Web Components

Question 12

What is the maximum number of debug logs that can be stored per user?

Accepted Answer

There is no limit on count, only total size.. There is a limit (typically 50MB per user, but logs are replaced).

Answer

1,000.

Answer

50.

Answer

100.

Question 13

A developer needs to measure the performance of a SOQL query. Which log category and level should be used?

Accepted Answer

Database: INFO.. The Database category at the INFO level or higher captures SOQL execution metrics.

Answer

System: DEBUG.

Answer

Apex Code: INFO.

Answer

Profiling: FINEST.

Question 14

Which THREE limitations apply to Apex Triggers? (Choose THREE.)

Accepted Answer

Triggers cannot perform DML statements directly without bulkification consideration (though syntax allows it, governor limits prevent it). Let's use: Triggers cannot use return types or be called directly from user interface buttons without wrapper classes/flows.. Triggers cannot make synchronous callouts, cannot use custom web service annotations directly on trigger bodies, and have limits on stack depth.

Answer

Triggers cannot be defined on standard objects, only custom objects.

Answer

Triggers cannot process more than 200 records in a single batch chunk.

Question 15

Which tag is used in Visualforce to include custom CSS stylesheets?

Accepted Answer

. is used to include external CSS files in Visualforce.

Answer

Answer

<apex:css>

Answer

<apex:style>

Question 16

A developer has written a trigger on the Account object that performs a SOQL query inside a for-loop. The developer notices that when a data load of 200 records occurs, governor limits are exceeded. What is the most efficient way to refactor this trigger?

Accepted Answer

Collect IDs into a Set and execute a single SOQL query outside the loop.. To avoid SOQL query limits, queries should be moved outside of loops and leverage collections (lists or sets) to retrieve all required data in a single query.

Answer

Use a static variable to cache the query results inside the loop.

Answer

Move the query into a helper method that is called recursively for each record.

Answer

Wrap the query in a try-catch block to handle governor limit exceptions.

Question 17

When testing asynchronous Apex, how do you ensure that the scheduled job has finished before asserting results?

Accepted Answer

Use Test.stopTest(). Test.stopTest() forces any asynchronous processes, such as @future or Schedulables, to execute before the code execution continues.

Answer

Query the AsyncApexJob object

Answer

Use System.runAs()

Answer

Use Thread.sleep()

Question 18

A developer needs to reset the governor limits within a test method to verify functionality that processes large amounts of records. Which method should be used?

Accepted Answer

Test.startTest(). Test.startTest() and Test.stopTest() reset the governor limits for the code executed between them.

Answer

System.resetLimits()

Answer

Test.loadData()

Answer

Test.stopTest()

Question 19

Which THREE statements are true regarding Future methods in Apex? Choose 3 options.

Accepted Answer

Future methods must be annotated with the @future annotation.. Future methods run asynchronously, must be annotated with @future, and cannot accept sObjects as arguments because sObject records can change between the time the method is called and when it executes.

Answer

Future methods can accept sObjects or lists of sObjects as parameters.

Answer

Future methods must be static and return either void or a primitive type.

Answer

Future methods can be called from within another future method.

Question 20

When should a developer choose to implement Schedulable Apex? (Choose two.)

Accepted Answer

To execute long-running batch processing or maintenance tasks periodically.. Schedulable Apex is used to run Apex classes at scheduled times or intervals, such as nightly batch jobs or periodic maintenance tasks.

Answer

To respond instantly to record inserts or updates.

Answer

To handle immediate real-time user interface validation.

Answer

To perform synchronous HTTP callouts directly from a Lightning Component button.