最新的Salesforce Developer認證 Plat-Dev-301考試題庫

問題1

A developer is writing a Visualforce page that queries accounts in the system and presents a data table with the results. The users want to be able to filter the results based on up to five fields. However, the users want to pick the five fields to use as filter fields when they run the page.
Which Apex code feature is required to facilitate this solution?

A. Streaming API

B. variable binding

C. Metadata APT

D. dynamic SOQL

正確答案: D

說明：（僅 VCESoft 成員可見）

問題2

Given the following information regarding Universal Containers (UC):
* UC represents their customers as Accounts in Salesforce.
* All customers have a unique Customer__Number_c that is unique across all of UC's systems.
* UC also has a custom Invoice c object, with a Lookup to Account, to represent invoices that are sent out from their external system.
UC wants to integrate invoice data back into Salesforce so Sales Reps can see when a customer pays their bills on time.
What is the optimal way to implement this?

A. Ensure Customer Number cis an External ID and that a custom field Invoice Number cis an External ID and Upsert invoice data nightly.

B. Create a cross-reference table in the custom invoicing system with the Salesforce Account ID of each Customer and insert invoice data nightly,

C. Query the Account Object upon each call to insert invoice data to fetch the Salesforce ID corresponding to the Customer Number on the invoice.

D. Use Salesforce Connect and external data objects to seamlessly import the invoice data into Salesforce without custom code.

正確答案: A

說明：（僅 VCESoft 成員可見）

問題3

A developer is writing a Jest test for a Lightning web component that conditionally displays child components based on a user's checkbox selections.
What should the developer do to properly test that the correct components display and hide for each scenario?

A. Add a teardown block to reset the DOM after each test.

B. Create a new jsdom instance for each test.

C. Create a new describe block for each test.

D. Reset the DOM after each test with the after Each() method.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題4

A developer created a Lightning web component mat allows users to Input a text value that is used to search for Accounts by calling an Apex method. The Apex method returns a list of account to apply and is called imperatively from a JavaScript event handler.

Which two changes should the developer make so the Apex method functions correctly. Choose 2 answers

A. Add @AuraEnabled to lines 11 and 12.

B. Add @AuraEnabled to line 03.

C. Add @AuraEnabled to line 01.

D. Add @AuraEnabled to line 09.

正確答案: A,B

問題5

A software company uses a custom object, Defact__c, to track defects in their software. Defect__c has organization-wide defaults set to private. Each Defect_ c has a related list of Reviewer < records, each with a lookup field to User that is used to indicate that the User will review the defect__c.
What should be used to give the User on the Reviewer_c record read only access to the Defect__c record on the Reviewer_c record?

A. Apex managed sharing

B. Lightning web component

C. View All on Defect__c

D. Criteria-based sharing

正確答案: A

說明：（僅 VCESoft 成員可見）

問題6

A user receives the generic "An internal server error has occurred" while interacting with a custom Lightning component.
What should the developer do to ensure a more meaningful message?

A. Add an onerror event handler to the tag.

B. Use platform events to process the error

C. Add an error-view component to the markup.

D. Use an AuraHandledexception in a try-catch block.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題7

A developer is asked to develop a new AppFxchange application. A feature of the program creates Survey records when a Case reaches a certain stage and is of a certain Record Type. This feature needs to be configurable, as different Salesforce instances require Surveys at different times. Additionally, the out-of-the-box AppExchange app needs to come with a set of best practice settings that apply to most customers.
What should the developer use to store and package the custom configuration settings for the app?

A. Custom objects

B. Custom labels

C. Custom metadata

D. Custom settings

正確答案: C

說明：（僅 VCESoft 成員可見）

問題8

A company notices that their unit tests in a test class with many methods to create many records for prerequisite reference data are slow.
What can a developer to do address the issue?

A. Move the prerequisite reference data setup to a @testSetup method in the test class.

B. Turn off triggers, flows, and validations when running tests.

C. Move the prerequisite reference data setup to a TestDataFactory and call that from each test method.

D. Move the prerequisite reference data setup to the constructor for the test class.

正確答案: A

說明：（僅 VCESoft 成員可見）

問題9

A developer is building a Lightning web component that searches
for Contacts. The component must communicate the search
results to other unrelated Lightning web components, that are in
different DOM trees, when the search completes.
What should the developer do to implement the communication?

A. Fire an application event.

B. Publish an event on an event channel.

C. Fire a custom component event.

D. Publish a message on a message channel.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題10

Universal Containers (UC) has enabled the translation workbench and has translated picklist values. UC has a custom multi-select picklist field, Product__c, on the Account object that allows sales reps to specify which of UC's products an Account already has. A developer is tasked with writing an Apex method that retrieves Account records, including the Product_c field.
What should the developer do to ensure the value of Products__c is in the current user's language?

A. Set the locale on each record in the SOQL result list.

B. Use the Locale clause in the SOQL query.

C. Call the translate method on each record in the SOQL result list.

D. Use tolabel ducts__c) in the fields list of the SOQL query.

正確答案: D

說明：（僅 VCESoft 成員可見）

問題11

Universal Containers wants to notify an external system in the event that an unhandled exception occurs when their nightly Apex batch job runs.
What is the appropriate publish/subscribe logic to meet this requirement?

A. Have the external system subscribe to a standardPlatform Event that gets fired with with Eventbus.publish(1.

B. Have the external system subscribe to a custom Platform Event that gets fired with addError{).

C. Have the external system subscribe to a customPlatform Event that gets fired with EventBus.publish(1,

D. Have the external system subscribe to a standard Platform Event that gets fired.

正確答案: C

說明：（僅 VCESoft 成員可見）

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