[Jun 27, 2022] DEX-450 Test Engine files, DEX-450 Dumps PDF [Q26-Q42]

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[Jun 27, 2022] DEX-450 Test Engine files, DEX-450 Dumps PDF

Latest Salesforce DEX-450 PDF and Dumps (2022) Free Exam Questions Answers

Salesforce DEX-450 Exam Syllabus Topics:

Topic	Details
Topic 1	Describe the memory lifecycle for static attributes Use Platform Events for Immediate Error Logging
Topic 2	Write tests for action methods, getters, setters, and properties List the differences between the ways you can invoke DML operations
Topic 3	Visualforce Development Considerations and Testing Determine what data an Apex class can access
Topic 4	Describe practices for writing code that is easy to maintain and extend Write triggers and classes that assume batches of data as input
Topic 5	Describe how triggers fit into and can be impacted by the Order of Execution Building a Data Model on the Salesforce Platform
Topic 6	Describe common limit issues and security concerns Launch a Visualforce page using a custom button
Topic 7	Describe the syntax of a trigger definition Display data from a record in a Visualforce page
Topic 8	Write a basic query using Salesforce’s query language, SOQL Write Apex to invoke DML operations and handle DML errors

Q26. A developer creates a new Visualforce page and Apex extension, and writes test classes that exercise 95% coverage of the new Apex extension.Change set deployment to production fails with the test coverage warning: “Average test coverage across all Apex classes and triggers is 74%, at least 75% test coverage is required.”What can the developer do to successfully deploy the new Visualforce page and extension?

Create test classes to exercise the Visualforce page markup.

Select “Disable Parallel Apex Testing” to run all the tests.

Add test methods to existing test classes from previous deployments.

Select “Fast Deployment” to bypass running all the tests.

Q27. A developer needs to avoid potential system problems that can arise in a multi-tenant architecture. Which requirement helps prevent poorty written applications from being deployed to a production environment?

SOQL queries must reference sObActs with their appropriate namespace.

All Apex code must be annotated with the with sharing keyword.

Unit tests must cover at least 75% of the application’s Apex code

All validation rules must be active before they can be deployed.

Q28. Which data structure is returned to a developer when performing a SOSL search?

A list of lists of sObjects.

A map of sObject types to a list of sObjects

A map of sObject types to a list oflists of sobjects

A list of sObjects.

Q29. What are the eight officially supported languages on Heroku platform?

Node,Ruby,java,PHP,Python,.Net,C++.

C#,C++,Node,Ruby,Java,PHP,Go,.Net.

Lisp,PHP,Node,Ruby,Scala,Haskell,Go,Erlang.

Node,Ruby java,PHP,Python,Go,Scala,Clojure.

Q30. How can a developer refer to, or instantiate a PageReference in Apex? Choose 2 answers

By using a PageReference with a partial or full URL.

By using the Page object and a Visualforce page name.

By using the ApexPages.Page() method with a Visualforce page name.

By using the PageReference.Page() method with a partial or full URL.

Q31. When an Account’s custom picklist field called Customer Sentiment is changed to a value of “Confused”, a new related Case should automatically be created.
Which two methods should a developer use to create this case? (Choose two.)

Process Builder

Apex Trigger

Custom Button

Workflow Rule

Q32. An org has an existing Flow that creates an Opportunity with an Update Records element. A developer update the Flow to also create a Contact and store the created Contact’s ID on the Opportunity.
Which update should the developer make in the Flow?

Add a new Get Records element.

Add a new Update Records element.

Add a new Quick Action element(of type Create).

Add a new Create Records element.

Q33. What are two characteristics related to formulas? Choose 2 answers.

Formula can reference themselves.

Formulas are calculated at runtime and are not stored in the database.

Formulas can reference values in related objects.

Fields that are used in a formula field can be deleted or edited without the formula.

Q34. 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 records.

Q35. Which statement generates a list of Leads and Contacts that have a field with the phrase ‘ACME’?

List <sObject> searchList = (FIND “*ACME*” IN ALL FIELDS RETURNING Contact, Lead);

List<List <sObject>> searchList = (FIND “*ACME*” IN ALL FIELDS RETURNING Contact, Lead);

Map <sObject> searchList = (FIND “*ACME*” IN ALL FIELDS RETURNING Contact, Lead);

List<List < sObject>> searchList = (SELECT Name, ID FROM Contact, Lead WHERE Name like ‘%ACME%’);

Q36. hat are three techniques that a developer can use to invoke an anonymous block of code? Choose 3 answers

Create a visualforce page that uses a controller class that is declared without sharing

Type code into the developer console and execute it directly

Type code into the execute anonymous tab in the force.com IDE and click execute

Use the SOAP API to make a call to execute anonymous code

Create and execute a test method that does not specify a runas() call

Q37. The account object has a custom percent field, rating, defined with a length of 2 with 0 decimal places. An account record has the value of 50% in its rating field and is processed in the apex code below after being retrieved from the database with SOQL public void processaccount(){ decimal acctscore = acc.rating__c * 100; } what is the value of acctscore after this code executes?

500

5000

Q38. When importing and exporting data into Salesforce, which two statements are true?
Choose 2 answers

Bulk API can be used to import large data volumes in development environments without bypassing the storage limits.

Bulk API can be used to bypass the storage limits when importing large data volumes in development environments.

Developer and Developer Pro sandboxes have different storage limits.

Data import wizard is a client application provided by Salesforce.

Q39. Which Lightning code segment should be written to declare dependencies on a Lightning component, c:accountList, that is used in a Visualforce page?
A)

B)

C)

D)

Option A

Option B

Option C

Option D

Q40. Which two examples above use the system. debug statements to correctly display the results from the SOQL aggregate queries? Choose 2 answers

Example 1

Example 2

Example 3

Example 4

Q41. A developer must write an Apex method that will be called from a Lightning component. The method may delete an account stored in the accountRec variable. Which method should a developer use to ensure only users that should be able to delete Accounts can succesfully perform deletions?

AccountRec.sObjectType.isDeleteable()

Schema.sObjectType.Account.isDeletable()

AccountRec.isdeletable()

Account.isDelketable()

Q42. The sales team at universal container would like to see a visual indicator appear on both account and opportunity page layout to alert salespeople when an account is late making payments or has entered the collections process. What can a developer implement to achieve this requirement without having to write custom code?

Workflow rule

Formula field

Roll-up summary field

Quick action

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