SALESFORCE-PD1 Practice Test 30 — 15 Questions

Question 1

A developer needs to see how much memory a specific Apex method is consuming. Which log category should be adjusted?

Accepted Answer

Profiling.. The Profiling category provides detailed information on resource consumption.

Answer

Apex Code.

Answer

Database.

Answer

Workflow.

Question 2

Why might a deployment fail due to 'Apex classes do not have sufficient coverage'?

Accepted Answer

Aggregate coverage is below 75%.. The combined coverage across all classes must be at least 75%.

Answer

Test classes are not marked @isTest.

Answer

Individual class coverage is below 75%.

Answer

The test classes are too large.

Question 3

How can you run tests for a specific namespace using the CLI?

Accepted Answer

Using the --namespace flag.. The CLI supports filtering tests by namespace.

Answer

Using the --package flag.

Answer

You cannot filter by namespace.

Answer

By running all tests.

Question 4

You are debugging a performance issue in an Apex trigger. You want to see the database resource usage. Which debug log level should you set for the Database category?

Accepted Answer

FINEST. The FINEST level for the Database category captures the most detailed information, including resource usage and DML/SOQL performance metrics.

Answer

ERROR

Answer

INFO

Answer

DEBUG

Question 5

Which base Lightning component should be used in an LWC to display a standard button?

Accepted Answer

lightning-button. lightning-button is the standard base component for buttons in LWC.

Answer

lightning:button

Answer

apex:commandButton

Answer

ui:button

Question 6

Which annotation is required for a method to be recognized by the Apex test runner?

Accepted Answer

@isTest.. @isTest is the required annotation for test classes and methods.

Answer

@testMethod.

Answer

@TestVisible.

Answer

@future.

Question 7

What is the purpose of the 'Debug Log' Filter in the Developer Console?

Accepted Answer

To limit the types of events displayed.. It allows developers to focus on specific categories or levels of logs.

Answer

To export logs.

Answer

To run tests.

Answer

To delete old logs.

Question 8

A developer needs to access a specific HTML element in a Lightning Web Component template imperatively. Which method should be called?

Accepted Answer

this.template.querySelector(). this.template.querySelector() is used to query elements inside the component's shadow DOM template.

Answer

window.findElement()

Answer

this.findElement()

Answer

document.querySelector()

Question 9

A developer needs to format a currency value according to the user's locale in a Lightning Web Component HTML template. Which base component should be used?

Accepted Answer

lightning-formatted-number. lightning-formatted-number with format-style="currency" or lightning-formatted-text is used for formatting.

Answer

lightning-input

Answer

apex:outputText

Answer

ui:outputCurrency

Question 10

Which TWO techniques can be used to pass data from a parent component to a child Lightning Web Component? Choose 2 answers.

Accepted Answer

Calling public @api methods defined on the child component instance from the parent JavaScript.. Data is passed down via public properties decorated with @api or by invoking public child methods.

Answer

Using application events via $A.get('e...')

Answer

Directly modifying child private properties using DOM queries.

Answer

Using global window variables.

Question 11

Which utility class is used to assert that code behaves as expected in Apex tests?

Accepted Answer

System.assertEquals().. The System.assertEquals method is the standard way to verify expected outcomes.

Answer

Test.assert().

Answer

Test.verify().

Answer

Assert.verify().

Question 12

Which base component should be used in LWC to display a tabular grid of data with sorting and row selection?

Accepted Answer

lightning-datatable. lightning-datatable is the standard component for tabular data display in LWC.

Answer

lightning-grid

Answer

lightning-table

Answer

apex:pageBlockTable

Question 13

A developer is building a Lightning Web Component and needs to execute code as soon as the component is inserted into the DOM. Which lifecycle hook should the developer use?

Accepted Answer

connectedCallback(). connectedCallback() is invoked when a component is inserted into the DOM, making it ideal for initialization logic that requires DOM readiness or wire adapters.

Answer

constructor()

Answer

disconnectedCallback()

Answer

renderedCallback()

Question 14

A developer is creating a reusable LWC utility and needs to invoke an Apex method imperatively. The method accepts a record ID parameter. What is the correct way to pass this parameter in JavaScript?

Accepted Answer

Pass the parameter as an object with property names matching the Apex method parameters: getAccount({ accountId: recordId }). Imperative Apex methods accept an object whose properties match the parameter names expected by the Apex method signature.

Answer

Pass the parameter as a positional string argument: getAccount({recordId})

Answer

Bind the parameter using the @api decorator inside the JavaScript function body.

Answer

Assign the parameter to the window.apexParams object prior to invocation.

Question 15

A developer is designing a Lightning Web Component that needs to be conditionally displayed in different Salesforce containers. Which TWO targets are valid entries in the component's js-meta.xml configuration file? (Choose TWO)

Accepted Answer

lightning__HomePage. lightning__RecordPage and lightning__HomePage are valid standard targets.

Answer

lightning__CustomField

Answer

lightning__ApprovalProcess

Answer

lightning__ApexClass