SALESFORCE-PD1 Practice Test 20 — 15 Questions

Question 1

Which THREE factors can cause an Apex CPU time limit exception in a synchronous transaction? Choose 3 answers.

Accepted Answer

Executing nested loops over large collections of sObjects.. Heavy loops, complex triggers, inefficient nested queries or collections processing, and excessive regex or string manipulations contribute to CPU time exhaustion.

Answer

Invoking too many SOQL queries within the 100 query limit.

Answer

Exceeding the total number of allowed DML statements.

Question 2

Which tool provides a declarative alternative to Apex triggers for creating records when another record is created?

Accepted Answer

Record-Triggered Flow. Record-triggered flows in Flow Builder allow declarative creation of related records.

Answer

Validation Rules

Answer

Assignment Rules

Answer

Approval Processes

Question 3

A developer needs to write a unit test for a Queueable Apex class. How should the developer verify that the Queueable job executed successfully?

Accepted Answer

Enclose the execution within Test.startTest() and Test.stopTest(), then query for the resulting record changes.. Queueable jobs executed inside Test.startTest() and Test.stopTest() run synchronously upon reaching stopTest(), allowing assertions to be checked immediately after.

Answer

Use System.assertAsync() to poll the job status table.

Answer

Query the AsyncApexJob table without Test.stopTest().

Answer

Call the queueable execute method directly in a try-catch block.

Question 4

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 5

An enterprise application requires real-time integration where outgoing callouts must be triggered from an Apex trigger. What architectural pattern must the developer use?

Accepted Answer

Future method annotated with @future(callout=true) invoked from an after trigger.. Triggers cannot make direct synchronous callouts, so they must invoke an asynchronous mechanism like a future method with callout=true.

Answer

Batch Apex execute method without queueing.

Answer

Direct synchronous HTTP callout inside the before insert trigger.

Answer

Validation rule containing an endpoint URL.

Question 6

Which context variable should be used in an after update trigger to compare old field values with new field values?

Accepted Answer

Trigger.newMap and Trigger.oldMap. Trigger.oldMap combined with Trigger.newMap allows comparing old and new values by record ID.

Answer

Trigger.operationType

Answer

Trigger.size

Question 7

A developer is implementing a Batch Apex class to process 500,000 Contact records. Which method defines the starting point and retrieves the records to be processed?

Accepted Answer

Database.QueryLocator start(Database.BatchableContext BC). The start method of a Database.Batchable class returns either a Database.QueryLocator or an Iterable that defines the records to be processed.

Answer

void execute(Database.BatchableContext BC, List<SObject> scope)

Answer

void finish(Database.BatchableContext BC)

Answer

Database.BatchableContext start(Database.BatchableContext BC)

Question 8

Which governor limit applies to the total CPU time in a single synchronous Apex transaction?

Accepted Answer

10,000 milliseconds. The synchronous CPU time limit is 10,000 milliseconds (10 seconds).

Answer

60,000 milliseconds

Answer

5,000 milliseconds

Answer

120,000 milliseconds

Question 9

A developer wants to chain a second asynchronous job from within an executing Queueable Apex job. Which method should be used?

Accepted Answer

System.enqueueJob(). System.enqueueJob is used inside an execute method of a Queueable class to chain another job.

Answer

Database.executeBatch()

Answer

apexJob.schedule()

Answer

Future.runAsync()

Question 10

In the order of execution, when are custom validation rules evaluated relative to Before Triggers?

Accepted Answer

After Before Triggers. Custom validation rules are evaluated after Before Triggers complete.

Answer

After After Triggers

Answer

Before Before Triggers

Answer

Concurrently with After Triggers

Question 11

Where should a developer look in the Salesforce user interface to inspect detailed system debug logs generated during a specific transaction?

Accepted Answer

Setup > Custom Code > Debug Logs. Debug logs are accessed via Setup by navigating to Custom Code > Debug Logs or via the Developer Console.

Answer

Setup > Monitor > Logs

Answer

Setup > Environments > Logs

Answer

Setup > Process Automation > Debug Logs

Question 12

Which best practice should be followed when writing Apex triggers to ensure bulkification?

Accepted Answer

Design triggers to process collections of records in bulk using collections and bulk SOQL queries.. Triggers must be written to handle collections of records (Trigger.new / Trigger.old) rather than single records.

Answer

Always query inside a for loop for every record.

Answer

Use future methods for every trigger execution.

Answer

Hardcode record IDs in trigger logic for performance.

Question 13

A developer encounters a 'System.AsyncException: Maximum queueable jobs added to the queue' error. What caused this exception?

Accepted Answer

Exceeding the maximum number of 50 queued jobs in a single transaction.. Exceeding the limit of 50 queued jobs added to the flex queue in a single transaction triggers this AsyncException.

Answer

Running more than 500 batch jobs simultaneously.

Answer

Exceeding the daily asynchronous Apex limit of 250,000.

Answer

Making more than 100 callouts in a future method.

Question 14

An enterprise application requires nightly execution of an Apex class that processes records across multiple objects. Which interface must the Apex class implement?

Accepted Answer

Schedulable. To schedule an Apex job, the class must implement the Schedulable interface, specifically the execute(SchedulableContext sc) method.

Answer

Database.AllowsCallouts

Answer

Batchable

Question 15

What is the maximum number of asynchronous batch jobs that can be queued or active concurrently in the Flex Queue?

Accepted Answer

100. Salesforce allows up to 100 batch jobs to be placed in the holding queue (Flex Queue) waiting for execution.

Answer

5

Answer

250

Answer

50