SALESFORCE-PD1 Practice Test 18 — 15 Questions

Question 1

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 2

What is the correct way to declare a constant variable in Apex?

Accepted Answer

final Integer MAX_COUNT = 10;. Constants in Apex are declared using the final keyword combined with static.

Answer

static readonly Integer MAX_COUNT = 10;

Answer

immutable Integer MAX_COUNT = 10;

Answer

const Integer MAX_COUNT = 10;

Question 3

A developer has a trigger that updates related child records. To prevent recursive trigger execution when updates ripple through child triggers, what is a standard best practice design pattern?

Accepted Answer

Using a static boolean flag in a utility class to track execution state.. Using a static boolean flag in a helper class is the classic pattern to prevent recursive trigger execution in Salesforce.

Answer

Using Flow Builder instead of Apex triggers for all child records.

Answer

Disabling all triggers via Custom Settings permanently.

Answer

Wrapping every DML statement in a try-catch block.

Question 4

Which TWO data types can be used as keys in an Apex Map? Choose 2 answers.

Accepted Answer

Id. Primitive data types like String, ID, and Integer can be used as map keys in Apex.

Answer

Blob

Answer

List<String>

Answer

SObject

Question 5

A developer is implementing a custom logging framework in Apex. Due to high transaction volumes, multiple asynchronous log entries need to be queued without hitting the maximum number of queueable jobs allowed in a single transaction. What is the execution limit for chained Queueable jobs?

Accepted Answer

Only one child job can be chained from a given Queueable job in a non-test context.. Queueable Apex supports chaining jobs, but synchronous transactions have strict limits on how many times a job can be chained consecutively.

Answer

Queueable jobs cannot be chained under any circumstances.

Answer

Up to 50 child jobs can be chained in a single transaction.

Answer

There is no limit to the number of chained queueable jobs.

Question 6

A developer implements a Queueable class that makes callouts and needs to test it using Test.startTest() and Test.stopTest(). When does the asynchronous queueable job execute during a unit test?

Accepted Answer

When Test.stopTest() is executed.. Asynchronous code executed inside Test.startTest() and Test.stopTest() runs synchronously when Test.stopTest() is called.

Answer

At the end of the test method automatically without stopTest.

Answer

Immediately when enqueued.

Answer

Only when explicitly mocked via HttpCalloutMock.

Question 7

What is the maximum number of SOQL queries that can be issued in a single synchronous Apex transaction?

Accepted Answer

100. The synchronous governor limit for SOQL queries is 100.

Answer

200

Answer

50000

Answer

50

Question 8

A developer is building a custom Lightning Web Component and wants to communicate data from a child component up to its parent component. Which THREE steps are required? (Choose three.)

Accepted Answer

Dispatch the event using the this.dispatchEvent() method in the child.. Child-to-parent communication in LWC is achieved by creating and dispatching a CustomEvent from the child and listening for it on the parent's HTML template.

Answer

Import the wire service adapter in the parent component.

Answer

Use the @api decorator on a parent property inside the child component.

Question 9

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 10

Which TWO actions can be performed inside a before insert Apex trigger without causing a runtime exception? (Choose two.)

Accepted Answer

Modifying field values on records in Trigger.new directly without a DML statement.. Before insert triggers allow modifying field values on Trigger.new directly and adding errors via addError(). DML statements and sending emails require after context or incur exceptions/limit issues.

Answer

Accessing Trigger.oldMap to compare previous values.

Answer

Performing an immediate synchronous HTTP callout to an external REST service.

Answer

Executing an explicit update DML statement on records in Trigger.new.

Question 11

A developer needs to query all Contact records, including those that have been deleted from the database via the Recycle Bin. Which SOQL clause must be added?

Accepted Answer

ALL ROWS. ALL ROWS must be appended to a SOQL query to include records in the Recycle Bin (deleted records) and archived tasks/events.

Answer

INCLUDING DELETED

Answer

FOR VIEW

Answer

FOR REFERENCE

Question 12

An enterprise application requires dynamic execution of a SOQL query where the object type and fields to query are determined at runtime based on user input. Which feature should the developer use to prevent SOQL injection vulnerabilities?

Accepted Answer

String.escapeSingleQuotes(). Dynamic SOQL queries must use binding variables or sanitize input using String.escapeSingleQuotes() to prevent malicious SOQL injection.

Answer

System.assert()

Answer

JSON.serialize()

Answer

Database.setSavepoint()

Question 13

A developer wants to retrieve the developer name of the current user's profile in Apex. Which object relationship should be queried via SOQL?

Accepted Answer

SELECT Profile.Name FROM User WHERE Id = :UserInfo.getUserId(). The User object relates to the Profile object through the ProfileId foreign key field.

Answer

SELECT Name FROM Profile WHERE UserId = :UserInfo.getUserId()

Answer

SELECT ProfileId.Name FROM User WHERE Id = :UserInfo.getUserId()

Answer

SELECT ProfileName FROM User WHERE Id = :UserInfo.getUserId()

Question 14

A developer implements a custom Apex controller for a Visualforce page that performs DML operations. Which THREE best practices should be followed to ensure robust data management and security? (Choose three.)

Accepted Answer

Check object CRUD and field-level security permissions before executing DML.. Secure controllers must check CRUD/FLS, enforce sharing rules, and handle DML errors gracefully.

Answer

Hardcode record type IDs directly in the controller class.

Answer

Bypass all triggers by using custom settings during Visualforce execution.

Question 15

An application uses a SOSL search to find records across multiple objects. Which return type must be used to capture the results in Apex?

Accepted Answer

List>. SOSL search queries return a List of Lists of SObjects (List>), because a single search can return results across multiple different sObject types.

Answer

Map<String, List<SObject>>

Answer

SearchResult[]

Answer

List<SObject>