SALESFORCE-PD1 Practice Test 7 — 10 Questions

Question 1

A developer needs to store a collection of unique customer email addresses in Apex and check for existence efficiently. Which collection type should the developer use?

Accepted Answer

Set. A Set is a collection of unique elements and provides efficient lookup using methods like contains(), making it ideal for checking existence.

Answer

Queueable

Answer

List

Answer

Map

Question 2

When should a developer choose a Record-Triggered Flow over an Apex trigger for automating record updates before save?

Accepted Answer

When updating fields on the same record being saved for better performance and maintainability.. Before-save record-triggered flows execute faster than Apex before-triggers and are fully declarative, making them the preferred choice for same-record field updates.

Answer

When the automation requires complex external web service callouts.

Answer

When handling recursive trigger execution across multiple custom objects.

Answer

When performing complex DML operations on up to five related child objects.

Question 3

Which trigger event handles the restoration of records from the Recycle Bin?

Accepted Answer

Before Undelete and After Undelete. Undelete triggers handle records restored from the recycle bin.

Answer

Before Insert and After Insert

Answer

Before Update

Answer

Before Delete and After Delete

Question 4

A developer needs to abort a scheduled Apex job programmatically from within a test class or maintenance script. Which method should be used?

Accepted Answer

System.abortJob(). System.abortJob(jobId) cancels a scheduled or flex-queued asynchronous job.

Answer

System.cancelJob()

Answer

apexJob.terminate()

Answer

Database.stopBatch()

Question 5

Which TWO best practices should a developer follow when writing bulkified Apex triggers? (Choose TWO.)

Accepted Answer

Perform DML statements and SOQL queries outside of loops by utilizing collections.. Bulkified triggers must operate on collections (Trigger.new) and avoid SOQL/DML inside loops.

Answer

Hardcode record IDs in trigger logic to route specific test accounts.

Answer

Use synchronous callouts directly inside before insert triggers.

Answer

Place SOQL queries inside loops to ensure every record gets fresh data.

Question 6

Which TWO statements about SOQL relationship queries are true? Choose 2 options.

Accepted Answer

Child-to-parent queries use dot notation (e.g., Account.Name).. Parent-to-child queries use subqueries in parentheses, and child-to-parent queries use dot notation.

Answer

SOQL supports traversing up to 10 levels of parent relationships.

Answer

Parent-to-child queries use dot notation on the parent object.

Answer

Child-to-parent queries require subqueries.

Question 7

Which THREE design patterns or tools help ensure secure coding practices regarding CRUD and FLS in Apex? Choose 3 options.

Accepted Answer

Using Security.stripInaccessible() before upserting data.. Option A is correct because Security.stripInaccessible() programmatically removes fields the running user cannot create or update (based on CRUD/FLS) from sObjects before a DML operation such as upsert, preventing unauthorized field writes. Option B is correct because adding WITH SECURITY_ENFORCED to a SOQL query enforces field- and object-level security at query time, throwing an exception if the user lacks access to any referenced field or object. Option C is correct because explicit Schema describe checks like Schema.sObjectType.Account.fields.Name.isAccessible() (and isCreateable()/isUpdateable()) let developers enforce FLS/CRUD manually before reading or writing data. Option D is incorrect because declaring classes 'without sharing' bypasses record-level sharing and does nothing to enforce CRUD or FLS, weakening security. Option E is incorrect because LWC HTML rendering tags only affect client-side display and cannot enforce server-side CRUD/FLS in Apex.

Answer

Declaring every class with 'without sharing'.

Answer

Relying solely on Lightning Web Component HTML rendering tags.

Question 8

A developer is building a Lightning Web Component and needs to listen to a custom event dispatched by a child component. How is the event listener attached in the parent HTML template?

Accepted Answer

onmyevent={handler}. Child events are listened to using on<eventname> attribute syntax in the parent template.

Answer

event-myevent={handler}

Answer

on-myevent={handler}

Answer

listener={handler}

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

A developer is working with a Lightning Web Component that uses the @wire decorator to provision data from an Apex method. The Apex method depends on a property that changes dynamically. How should the property be prefixed to signal reactivity to the wire service?

Accepted Answer

Prefix the property name with a dollar sign ($). In Lightning Web Components, the @wire decorator uses a reactive variable syntax where a property prefixed with a dollar sign ($) is treated as a dynamic parameter. When that property changes, the wire service automatically re-invokes the Apex method with the new value. This is the documented LWC reactive wire pattern, e.g., @wire(getContact, { contactId: '$recordId' }).

Answer

Enclose the property name in curly braces ({})

Answer

Prefix the property name with an ampersand (&)

Answer

Prefix the property name with an underscore (_)