SALESFORCE-PD1 Practice Test 18 — 15 Questions

Question 1

When deploying metadata from a sandbox to production using Change Sets, what is the first requirement?

Accepted Answer

Configure a Deployment Connection. Before any Change Set can be deployed from a sandbox to production (or between sandboxes), a Deployment Connection must be established between the source and target orgs. This connection authorizes the sandbox to deploy metadata to the target and is configured in Setup under Deploy > Deployment Settings. Without it, the Change Set cannot be uploaded to the target org.

Answer

Install Salesforce CLI

Answer

Enable Metadata API in production

Answer

Create an Unmanaged Package

Question 2

A developer is writing an Aura component and needs to dynamically create a component at runtime. Which JavaScript method should be used?

Accepted Answer

$A.createComponent(). $A.createComponent() is the Aura framework's factory method for dynamically instantiating a component at runtime by name, returning a callback with the new component instance that can then be inserted into the DOM via component.set('v.body', ...). It is the only supported way to create Aura components programmatically rather than declaratively in markup.

Answer

document.createElement()

Answer

Aura.create()

Answer

component.new()

Question 3

A developer has a Lightning Web Component with a reactive property 'recordId'. How should the property be decorated to ensure it receives the current record ID when placed on a record page?

Accepted Answer

@api recordId;. The @api decorator makes a property public and reactive, allowing a parent component or the Lightning record page to pass the recordId into the component. On a record page, the framework automatically injects the current record ID into any public property named recordId. Without @api, the property is private and will not receive the value.

Answer

@wire recordId;

Answer

@track recordId;

Answer

@wire(getRecord) recordId;

Question 4

What is the primary purpose of the 'System.debug()' statement?

Accepted Answer

To write information to the debug log. System.debug() writes information to the Salesforce debug log, which developers use to trace execution, inspect variable values, and diagnose issues during development and troubleshooting. The output appears in the Developer Console, the debug log viewer, or via the Streaming API, and is governed by the log level set in the trace flag. It does not surface anything to end users or alter execution flow.

Answer

To display an error to the end user

Answer

To stop the execution of the code

Answer

To log an audit trail of configuration changes

Question 5

When testing a trigger, why should you avoid hard-coding IDs?

Accepted Answer

IDs change between orgs, causing test failures.. Record IDs are org-specific—the same logical record has different 15/18-character IDs in each Salesforce org (sandbox, production, scratch org). Hard-coding an ID in a test method means the test will fail when deployed to another org because that ID does not exist there. Tests must query for or create records dynamically to obtain valid IDs at runtime.

Answer

It violates Apex syntax rules.

Answer

It limits the test to only one record.

Answer

It triggers governor limits.

Question 6

A developer is implementing a Lightning Web Component that handles drag-and-drop functionality. Which native DOM event is typically intercepted to allow a drop action on an element?

Accepted Answer

dragover and preventDefault(). To allow a drop on an element, the developer must intercept the 'dragover' event and call preventDefault() on it. By default, browsers do not allow dropping on an element; calling preventDefault() in the dragover handler signals that the element is a valid drop target, after which the 'drop' event fires. This is the standard HTML5 drag-and-drop contract.

Answer

dragstart

Answer

dropstart

Answer

mousedown

Question 7

A developer needs to schedule an Apex class to run weekly. Which THREE elements are required to implement Schedulable Apex? (Choose THREE.)

Accepted Answer

The public class must implement the Schedulable interface.. Option C is correct because Schedulable Apex requires the class to implement the Schedulable interface, which is the contract that makes the class eligible for scheduling. Option D is correct because the scheduled job must be registered with System.schedule(), passing a job name and a valid Cron expression that defines the weekly recurrence. Option E is correct because the Schedulable interface mandates an execute method with the signature global or public void execute(SchedulableContext sc), which is the entry point invoked when the scheduled job fires. Option A is incorrect because extending the Controller class is unrelated to scheduling and is used for Visualforce controllers, not Schedulable Apex. Option B is incorrect because implementing Database.Batchable<SObject> is required for Batch Apex, not for Schedulable Apex, although a class can implement both interfaces if needed.

Answer

The class must extend the Controller class.

Answer

The class must implement Database.Batchable<SObject>.

Question 8

A developer is writing a trigger on the Contact object that needs to reference old field values during an update operation. In which trigger context variable are these previous values stored?

Accepted Answer

Trigger.old. Trigger.old contains a list of sObject records prior to the update or delete operation.

Answer

Trigger.new

Answer

Trigger.previousValues

Answer

Trigger.newMap

Question 9

Which lifecycle hook in a Lightning Web Component runs after every render of the component?

Accepted Answer

renderedCallback(). renderedCallback() is the LWC lifecycle hook invoked after every render of the component, including the initial render and any subsequent re-renders triggered by reactive property changes. It is the correct place to perform DOM manipulation or logic that depends on the rendered output, though developers must guard against infinite loops by checking whether work has already been done.

Answer

constructor()

Answer

connectedCallback()

Answer

render()

Question 10

A developer needs to write a test class for a Batch Apex job. Which method must be called to verify that the batch job executes correctly?

Accepted Answer

Database.executeBatch() enclosed by Test.startTest() and Test.stopTest(). Database.executeBatch inside Test.startTest() and Test.stopTest() executes the batch job in test context.

Answer

Test.runBatch()

Answer

Test.enqueueJob()

Answer

System.runAs()

Question 11

Which THREE items are included in a debug log?

Accepted Answer

System.debug statements.. In Salesforce, a debug log captures the execution details of transactions, and it explicitly includes System.debug statements (Option A), which are the developer-defined diagnostic messages written to the log for troubleshooting. It also records SOQL queries (Option D), showing the exact query strings executed along with row counts and timing, which is essential for diagnosing query performance and governor limit issues. Additionally, DML operations (Option E) are logged, including the type of operation (insert, update, delete, etc.), the affected object, and the number of rows processed. Options B and C are incorrect because browser cookies and user password history are not part of the Apex/transaction execution context that debug logs capture; cookies relate to client-side session state, and password history is a security/user record attribute, neither of which appears in debug log output.

Answer

Browser cookies.

Answer

User password history.

Question 12

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

Question 13

Which TWO of the following statements about Trigger.new and Trigger.old are accurate?

Accepted Answer

Trigger.old is available in update triggers. Trigger.new is always present on insert/update; Trigger.old is always present on update/delete.

Answer

Trigger.old is available in insert triggers

Answer

Trigger.newMap is available in before insert

Answer

Trigger.new is available in delete triggers

Question 14

Which TWO collection interfaces or classes are provided in Apex? Choose 2 options.

Accepted Answer

Map. List and Map are core collection types in Apex.

Answer

Vector

Answer

Dictionary

Answer

Hashtable

Question 15

Which collection type in Apex stores elements as key-value pairs where each key maps to a single value?

Accepted Answer

Map. A Map stores key-value pairs where each unique key maps to a single value.

Answer

Set

Answer

Queue

Answer

List