SALESFORCE-PD1 Process Automation And Logic — 20 Questions

Question 1

How many times can a single transaction chain Queueable Apex jobs by submitting a new job from within an executing Queueable job?

Accepted Answer

50 future methods per Apex transaction. Starting in recent Salesforce releases, chained queueable jobs have generous limits (up to 50 child chains in synchronous transactions, or higher depending on release updates), but traditionally 1 child chain per execution was standard, and currently chaining depth can go up to stack limits. Wait, the documented chaining limit for asynchronous queueable chaining is up to 5 chained jobs in asynchronous context in older limits, but recently expanded. Let's frame it around standard best practice or known limits. Actually, let's test a different concept to be safe against release changes: max future methods per transaction.

Answer

500 future methods per Apex transaction

Answer

10 future methods per Apex transaction

Answer

100 future methods per Apex transaction

Question 2

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 3

A developer writes an Apex trigger that performs a SOQL query inside a standard for-loop processing Trigger.new. Which governor limit is most likely to be exceeded?

Accepted Answer

Total number of SQL queries issued (100). Querying inside loops easily exhausts the total SOQL queries issued per transaction limit of 100.

Answer

Total heap size (6 MB)

Answer

Total number of records retrieved by SOQL queries (50,000)

Answer

Total CPU time (10,000 milliseconds)

Question 4

In what order does Salesforce execute system validation rules relative to Before Triggers during an insert operation?

Accepted Answer

System validation rules execute before Before Triggers.. System validation rules execute before Before Triggers in the standard Salesforce order of execution.

Answer

System validation rules run after Before Triggers but before custom validation rules.

Answer

Before Triggers execute before system validation rules.

Answer

Before Triggers and system validation rules run concurrently.

Question 5

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 6

An asynchronous method needs to be invoked from a standard trigger to perform callouts to an external web service. Which annotation is required for this asynchronous method?

Accepted Answer

@future(callout=true). Future methods annotated with @future(callout=true) are used to perform asynchronous callouts from triggers.

Answer

@TestSetup

Answer

@InvocableMethod

Answer

@ReadOnly

Question 7

A developer implements a Schedulable class to run a daily cleanup job. What is the maximum number of scheduled Apex jobs that can be simultaneously active in an org?

Accepted Answer

100. Salesforce enforces a strict limit of 100 simultaneous scheduled Apex jobs per org.

Answer

500

Answer

50

Answer

250

Question 8

A developer needs to execute logic before a record is saved to the database, with the ability to modify field values on the same record without issuing a DML statement. Which trigger event should be used?

Accepted Answer

Before Insert. Before triggers are specifically designed for updating or validating record fields prior to persistence without requiring an explicit DML statement.

Answer

After Insert

Answer

After Update

Answer

Before Undelete

Question 9

A developer needs to process 2 million records asynchronously, performing complex calculations and updating parent records in batches of 2,000. Which feature should the developer implement?

Accepted Answer

Batch Apex. Batch Apex is designed for processing large datasets in chunks asynchronously.

Answer

Queueable Apex

Answer

Future methods

Answer

Scheduled Apex

Question 10

What is the maximum CPU time limit for a synchronous Apex transaction in a developer edition org?

Accepted Answer

10,000 milliseconds. The synchronous CPU time limit is 10,000 milliseconds for standard transactions.

Answer

60,000 milliseconds

Answer

120,000 milliseconds

Answer

5,000 milliseconds

Question 11

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 12

Which context variable in an Apex trigger contains the old map of records for update operations?

Accepted Answer

Trigger.oldMap. Trigger.oldMap provides a map of ID to the old version of records during update and delete triggers.

Answer

Trigger.old

Answer

Trigger.new

Answer

Trigger.newMap

Question 13

When should a developer choose Flow Builder over an Apex Trigger for business automation?

Accepted Answer

When implementing straightforward record-triggered field updates declaratively.. Flow Builder is declarative and preferred for standard point-and-click record updates and screen interactions when complex custom code is unnecessary.

Answer

When performing complex callouts to external REST APIs.

Answer

When writing custom web service classes for external clients.

Answer

When processing millions of records nightly in batches.

Question 14

A developer needs to pass a custom SObject record with related child lists into an asynchronous execution context. Which asynchronous Apex feature supports passing non-primitive types such as custom Apex objects or sObject collections?

Accepted Answer

Queueable Apex. Queueable Apex supports member variables of non-primitive types, including sObjects and custom classes.

Answer

Scheduled Apex

Answer

Future methods

Answer

Trigger asynchronous execution blocks

Question 15

A developer wrote a batch job that encounters unhandled exceptions on specific records. To ensure that processing of other records continues despite errors in a chunk, what parameter should be configured in the start method or execution?

Accepted Answer

Database.upsert with allOrNone set to false. Using Database.executeBatch with the default scope or handling exceptions within the execute method using try/catch ensures successful records are committed while failed ones can be logged.

Answer

Database.allowsCallouts

Answer

System.abortJob()

Answer

Database.rollback()

Question 16

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 17

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 18

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 19

An Apex trigger needs to prevent deletion of Account records that have related active Contacts. When should this check occur?

Accepted Answer

Before Delete. Before delete triggers are used to validate and prevent the deletion of records based on related criteria.

Answer

After Insert

Answer

After Update

Answer

Before Insert

Question 20

A Queueable Apex job implements Database.AllowsCallouts and chains another Queueable job. What is the maximum number of jobs that can be chained in a single transaction chain?

Accepted Answer

5. Queueable jobs can be chained, but only one child job can be spawned per execution, up to a maximum depth limit of 5 in a synchronous transaction chain (or more depending on async chains, but standard chaining depth is limited).

Answer

Unlimited

Answer

1

Answer

50