24 December, 2023

The Updated Guide To CRT-450 Preparation

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Page: 1 / 17

Total 211 questions Full Exam Access

Question 1

How should a developer avoid hitting the governor limits in test methods?

Use @TestVisible on methods that create records.

Use Test.loadData() to load data from a static resource.

Use @IsTest (SeeAllData=true) to use existing data.

Use Test.startTest() to reset governor limit

Question 2

Why would a developer use Test. startTest( ) and Test.stopTest( )?

To avoid Apex code coverage requirements for the code between these lines

To start and stop anonymous block execution when executing anonymous Apex code

To indicate test code so that it does not Impact Apex line count governor limits.

To create an additional set of governor limits during the execution of a single test clas

Question 3

A developer needs to join data received from an integration with an external system with parent records in Salesforce. The data set does not contain the Salesforce IDs of the parent records, but it does have a foreign key attribute that can be used to identify the parent.
Which action will allow the developer to relate records in the data model without knowing the Salesforce ID?

Create and populate a custom field on the parent object marked as Unique.

Create a custom field on the child object of type External Relationship.

Create and populate a custom field on the parent object marked as an External ID.

Create a custom field on the child object of type Foreign Key.

Question 4

What is a capability of the tag that is used for loading external Javascript libraries in Lightning Component? (Choose three.)

Loading files from Documents.

One-time loading for duplicate scripts.

Specifying loading order.

Loading scripts in parallel.

Loading externally hosted script

Question 5

Where can the custom roll-up summary fields be created using Standard Object relationships (Choose 3)

On Opportunity using Opportunity Product records.

On Account using Case records.

On Quote using Order records.

On Campaign using Campaign Member records.

On Account using Opportunity record

Question 6

A developer creates an Apex Trigger with the following code block:List customers = new List();For (Order c o: trigger.new){Account a = [SELECT Id, Is_Customer c FROM Account WHERE Id = :o.Customer c];a.Is_Customer c = true;customers.add(a);}Database.update(customers, false);The developer tests the code using Apex Data Loader and successfully loads 10 Orders. Then, the developer loads 150 Orders.How many Orders are successfully loaded when the developer attempts to load the 150 Orders?

150

100

Question 7

A developer in a Salesforce org with 100 Accounts executes the following code using the Developer console:Account myAccount = new Account(Name = 'MyAccount');Insert myAccount;For (Integer x = 0; x < 150; x++)
{Account newAccount = new Account (Name='MyAccount' + x);try {Insert newAccount;} catch (Exception ex)
{System.debug (ex) ;}}insert new Account (Name='myAccount');How many accounts are in the org after
this code is run?

101

100

102

252

Question 8

A developer runs the following anonymous code block:
List acc = [SELECT Id FROM Account LIMIT 10];Delete acc;Database.emptyRecycleBin(acc);system.debug(Limits.getDMLStatements()+ ‘, ‘
+Limits.getLimitDMLStatements());What is the result?

11, 150

150, 2

150, 11

2, 150

Question 9

For which three items can a trace flag be configured? (Choose three.)

Apex Trigger

Apex Class

Process Builder

User

Visualforce

Question 10

What are two benefits of the Lightning Component framework? (Choose two.)

It simplifies complexity when building pages, but not applications.

It provides an event-driven architecture for better decoupling between components.

It promotes faster development using out-of-box components that are suitable for desktop and mobile devices.

It allows faster PDF generation with Lightning component

Question 11

A developer encounters APEX heap limit errors in a trigger.
Which two methods should the developer use to avoid this error? (Choose two.)

Use the transient keyword when declaring variables.

Query and store fields from the related object in a collection when updating related objects.

Remove or set collections to null after use.

Use SOQL for loops instead of assigning large queries results to a single collection and looping through the collectio

Question 12

What is a characteristic of the Lightning Component Framework? Choose 2 answers:

It has an event-driven architecture.

It works with existing Visualforce pages.

It includes responsive components.

It uses XML as its data forma

Question 13

A developer is asked to set a picklist field to ‘Monitor’ on any new Leads owned by a subnet of Users. How should the developer implement this request?

Create an after insert Lead trigger.

Create a before insert Lead trigger.

Create a Lead Workflow Rule Field Update.

Create a Lead formula fiel

Question 14

A developer is creating a test coverage for a class and needs to insert records to validate functionality. Which method annotation should be used to create records for every method in the test class?

@BeforeTest

@isTest(SeeAllData=True)

@TestSetup

@PreTest

Question 15

A developer wants to override a button using Visualforce on an object. What is the requirement?

The controller or extension must have a PageReference method.

The standardController attribute must be set to the object.

The action attribute must be set to a controller method.

The object record must be instantiated in a controller or extensio

Question 16

A developer wants to display all of the available record types for a Case object. The developer also wants to display the picklist values for the Case.Status field. The Case object and the Case Status field are on a custom visualforce page. Which action can the developer perform to get the record types and picklist values in the controller? Choose 2 answers

Use Schema.PicklistEntry returned by Case Status getDescribe().getPicklistValues().

Use Schema.RecordTypeinfo returned by Case.SObjectType getDescribe().getRecordTypelnfos()

Use SOQL to query Case records in the org to get all the RecordType values available for Case.

Use SOQL to query Case records in the org to get all value for the Status picklist fiel

Question 17

How should a developer prevent a recursive trigger?

Use a “one trigger per object” pattern.

Use a static Boolean variable.

Use a trigger handler.

Use a private Boolean variabl

Question 18

A developer needs to display all of the available fields for an object.
In which two ways can the developer retrieve the available fields if the variable myObject represents the name of the object? (Choose two.)

Use myObject.sObjectType.getDescribe().fieldSet() to return a set of fields.

Use mySObject.myObject.fields.getMap() to return a map of fields.

Use Schema.describeSObjects(new String[]{myObject})[0].fields.getMap() to return a map of fields.

Use getGlobalDescribe().get(myObject).getDescribe().fields.getMap() to return a map of field

Question 19

How can a developer retrieve all Opportunity record type labels to populate a list collection?Choose 2 answers

Obtain describe object results for the Opportunity objct.

Write a for loop that extracts values from the Opportunity.RecordType.Name field.

Use the global variable $RecordType and extract a list from the map.

Write a SOQL for loop that iterates on the RecordType objec

Question 20

What are three characteristics of static methods? (Choose three.)

Initialized only when a class is loaded

A static variable outside of the scope of an Apex transaction

Allowed only in outer classes

Allowed only in inner classes

Excluded from the view state for a Visualforce page

Question 21

When is an Apex Trigger required instead of a Process Builder Process?

When a record needs to be created

When multiple records related to the triggering record need to be updated

When a post to Chatter needs to be created

When an action needs to be taken on a delete or undelete, or before a DML operation is executed.

Question 22

What would a developer do to update a picklist field on related Opportunity records when a modification to the associated Account record is detected?

Create a process with Process Builder.

Create a workflow rule with a field update.

Create a Lightning Component.

Create a Visualforce pag

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Total 211 questions Full Exam Access