DEX-450試験無料問題集（175題）「Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience 認定」

出題：1

Which three Salesforce resources can be accessed from a Lightning web component?
Choose 3 answers

A. SVG resources

B. Third-party web components

C. Content asset files

D. Static resources

E. All external libraries

正解：A,C,D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：2

Which code statement includes an Apex method named updateaccounts in the class accountcontreoller for use in a Lightning web component?

A. import updateiccounta from 'AccountConctroller':

B. import updatelccounts from '@aalesforce/apeax/AccountController':

C. import updase'Accounts from

D. import updatelccounta from 'RAccountContraller,updateiccounta';

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：3

Which statement should be used to allow some of the records in a list of records to be inserted if others fail to be inserted?

A. insert records

B. Database.insert (records, false)

C. Insert (records, false)

D. Database.insert(records, true)

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：4

Which two actions may cause triggers to fire?
Choose 2 answers

A. Renaming or replacing a picklist entry

B. Changing a user's default division when the transfer division option is checked

C. Updates to FeedItem

D. Cascading delete operations

正解：C,D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：5

A developer is tasked to perform a security review of the ContactSearch Apex class that exists in the system. Within the class, the developer identifies the following method as a security threat:

What are two ways the developer can update the method to prevent a SOQL injection attack?
Choose 2 answers

A. Use variable binding and replace the dynamic query with a static SOQL.

B. Use a regular expression expression on the parameter to remove special characters,

C. Use the @Readonly annotation and the with sharing keyword on the class

D. Use the escapeSingleQuotes method to sanitize the parameter before its use.

正解：A,D 解答を投票する

出題：6

A developer deployed a trigger to update the status__c of Assets related to an Account when the Account's status changes and a nightly integration that updates Accounts in bulk has started to fail with limit failures.

What should the developer change about the code to address the failure while still having the code update all of the Assets correctly?

A. Add a LIMIT clause to the SOQL query on line 16 to limit the number of Assets queried for an Account.

B. Add List<asset> assets = [SELECT Id, Status_c FROM Asset WHERE AccountId = :acctId) to line 14 and iterate over the assets list in the for loop on line 15.

C. Change the getAssecsTspdace method to process all Accounts in one call and call it outside of the fox loop that starts on line 03.

D. Move all of the logic to a gueueabs class that queries for and updates the Assets and call it from the trigger.

正解：C 解答を投票する

出題：7

What is an example of a polymorphic lookup field in Salesforce?

A. The Parentld field on the standard Account object

B. The Whatld field on the standard Event object

C. A custom field, Link__c, on the standard Contact object that looks up to an Account or a Campaign

D. The Leadld and Contactld fields on the standard Campaign Member object

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：8

Which code displays the contents of a Visualforce page as a PDF?

A.

B.

C.

D.

正解：C 解答を投票する

出題：9

A developer needs to make a custom Lightning Web Component available in the Salesforce Classic user interface. Which approach can be used to accomplish this?

A. Embed the Lightning Web Component is a Visualforce Component and add directly to the page layout.

B. Use a Visualforce page with a custom controller to invoke the Lightning Web Component using a call to an Apex method.

C. Use the Lightning Out JavaScript library to embed the Lightning Web Component in a Visualforce page and add to the page layout.

D. Wrap the Lightning Web Component in an Aura Component and surface the Aura Component as a Visualforce tab.

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：10

Considering the following code snippet:

When the code executes, a DML exception is thrown.
How should a developer modify the code to ensure exceptions are handled gracefully?

A. Implement Change Data Capture,

B. Remove null items from the list of Accounts.

C. Implement a try/catch block for the DML.

D. Implement the upsert DML statement.

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

DEX-450試験無料問題集「Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience 認定」