最新の2023年12月11日試験エンジン練習問題DEX-450最新の有効問題集を提供中です
試験解答はDEX-450最新版テストエンジンをタダで提供します
質問 # 72
What is the requirement for a class to be used as a custom Visualforce controller?
- A. Any top-level Apex class that implements the controller interface
- B. Any top-level Apex class that extends a PageReference
- C. Any top-level Apex class that has a default, no-argument constructor
- D. Any top-level Apex class that has a constructor that returns a PageReference
正解：A
質問 # 73
Universal Containers has implemented an order management application. Each Order can have one or more Order Line items. The Order Line object is related to the Order via a master-detail relationship. For each Order Line item, the total price is calculated by multiplying the Order Line item price with the quantity ordered.
What is the best practice to get the sum of all Order Line item totals on the Order record?
- A. Formula field
- B. Roll-up summary field
- C. Apex trigger
- D. Quick action
正解：B
質問 # 74
Given the following code snippet, that is part of a custom controller for a Visualforce page:
In which two ways can the try/catch be enclosed to enforce object and field-level permissions and prevent the DML statement from being executed if the current logged-in user does not have the appropriate level of access? Choose 2 answers
- A. Use if (Schema, sobjectType, Contact, isUpdatable ( ) )
- B. Use if (thisContact.Owner = = UserInfo.getuserId ( ) )
- C. Use if (Schema.sObjectType.Contact.isAccessible ( ) )
- D. Use if (Schema , sobjectType. Contact. Field, Is_Active_c. is Updateable ( ) )
正解：A、D
質問 # 75
A developer is debugging the following code to determinate why Accounts are not being created Account a = new Account(Name = 'A'); Database.insert(a, false); How should the code be altered to help debug the issue?
- A. Collect the insert method return value a Saveresult record
- B. Set the second insert method parameter to TRUE
- C. Add a try/catch around the insert method
- D. Add a System.debug() statement before the insert method
正解：A
質問 # 76
A developer needs to provide a Visualforce page that lets users enter Product-specific details during a Sales cycle. How can this be accomplished? (Choose 2)
- A. Download an Unmanaged Package from the AppExchange that provides a custom Visualforce page to modify.
- B. Copy the standard page and then make a new Visualforce page for Product data entry.
- C. Create a new Visualforce page and an Apex controller to provide Product data entry.
- D. Download a Managed Package from the AppExhange that provides a custom Visualforce page to modify.
正解：A、C
質問 # 77
A developer is asked to explore if this automation can be implemented without writing any Apex code.
Which statement is true regarding this automation request?
- A. The developer can use record triggered flow with Actions.
- B. The developer can use Einstein Next Best Actions.
- C. This approval step cannot be automated and must be done manually.
- D. The developer can use a record
正解：D
質問 # 78
Which two statements are acceptable for a developer to use inside procedural loops?
- A. Contact con = new Contact();
- B. Account a = [SELECT id, Name FROM account WHERE id = : con.AccountId LIMIT 1];
- C. ContactList.remove(i);
- D. Delete contactList;
正解：A、C
質問 # 79
If apex code executes inside the execute() method of an Apex class when implementing the Batchable interface, which statement are true regarding governor limits? Choose 2 answers
- A. The Apex governor limits are relaxed while calling the constructor of the Apex class.
- B. The apex governor limits are reset for each iteration of the execute() method.
- C. The Apex governor limits cannot be exceeded due to the asynchronous nature of the transaction,
- D. The Apex governor limits might be higher due to the asynchronous nature of the transaction.
正解：B、D
質問 # 80
A primaryid_c custom field exists on the candidate_c custom object. The filed is used to store each candidate's id number and is marked as Unique in the schema definition.
As part of a data enrichment process. Universal Containers has a CSV file that contains updated data for all candidates in the system, the file contains each Candidate's primary id as a data point. Universal Containers wants to upload this information into Salesforce, while ensuring all data rows are correctly mapped to a candidate in the system.
Which technique should the developer implement to streamline the data upload?
- A. Upload the CSV into a custom object related to Candidate_c.
- B. Update the primaryid__c field definition to mark it as an External Id
- C. Create a before Insert trigger to correctly map the records.
- D. Create a Process Builder on the Candidate_c object to map the records.
正解：B
質問 # 81
What will be the output in the debug log in the event of a QueryExeption during a call to the @query method in the following Example?
- A. Querying Accounts. Query Exception. Done
- B. Querying Accounts. Custom Exception.
- C. Querying Accounts. Custom Exception Done.
- D. Querying Accounts. Query Exception.
正解：A
質問 # 82
Which data structure is returned to a developer when performing a SOSL search?
- A. A map of sObject types to a list oflists of sobjects
- B. A map of sObject types to a list of sObjects
- C. A list of lists of sObjects.
- D. A list of sObjects.
正解：C
質問 # 83
A visualforce page uses the contact standard controller. How can a developer display the name from the parent account record on the page?
- A. Use additional apex logic within the controller to query for the name field
- B. Use an additional standard controller for accounts
- C. Use the {!contact.account.name} merge field syntax
- D. Use SOQL syntax to find the related accounts name field
正解：C
質問 # 84
How can a developer check the test coverage of active Process Builder and Flows deploying them in a Changing Set?
- A. Use the code Coverage Setup page
- B. Use the Apex testresult class
- C. Use the Flow properties page.
- D. Use SOQL and the Tooling API
正解：D
質問 # 85
Which control statement should a developer use to ensure that a loop body executes at least once?
- A. While (condition){}
- B. For(variable : list_or_set){}
- C. Do {} while (cond)
- D. For(init_stmt;exit_cond;increment){}
正解：C
質問 # 86
Universal Containers wants Opportunities to be locked from editing when reaching the Closed/Won stage.
Which two strategies should a developer use to accomplish this? Choose 2 answers
- A. Use a trigger.
- B. Use a validation rule.
正解：A、B
質問 # 87
A developer wrote the following two classes:
The StatusFetcher class successfully compiled and saved. However, the Calculator class has a compile time error.
How should the developer fix this code?
- A. Change the class declaration for the Calculator class to public with inherited sharing.
- B. Change the class declaration for the statusFetcher class to public with inherited sharing.
- C. Make the isActive method in the StatusFetcher class public.
- D. Make the doCalculations method in the Calculation class private.
正解：C
質問 # 88
Which two characteristics are true for Aura component events? Choose 2 answers
- A. By default, containers can handle events thrown by components they contain.
- B. The event propagates to every owner in the containment hierarchy.
- C. Depending on the current propagation phase, calling event. Stoppropagation () may not stop the event propagation.
- D. If a container component needs to handle a component event, add a includeFacets" true" attribute to its handler.
正解：B、C
質問 # 89
How should a developer avoid hitting the governor limits in test methods?
- A. Use Test.startTest() to reset governor limits.
- B. Use @TestVisible on methods that create records.
- C. Use Test.loadData() to load data from a static resource.
- D. Use @IsTest (SeeAllData=true) to use existing data.
正解：A
質問 # 90
......
Salesforce DEX-450: Programmatic Development using Apex and Visualforce in Lightning Experience 認定試験は、開発者がプログラム開発のスキルと専門知識を認定するための優れた方法です。この試験は、Lightning ExperienceでのApexおよびVisualforce開発に関連する幅広いトピックをカバーしており、Salesforceエコシステムでキャリアを進めたい開発者には必須です。この認定を取得することで、開発者はSalesforceでカスタムアプリケーションを開発し、ビジネスプロセスを自動化する能力を証明できます。これは、今日の競争の激しい求人市場で成功するために不可欠です。
DEX-450試験は、Salesforce Certified Platform Developer II認定の一部であり、ApexおよびVisualforceプログラミング言語を深く理解している経験豊富な開発者向けに設計されています。この認定は、Salesforceプラットフォームでのカスタムアプリケーション、統合、および自動化ソリューションの設計と構築に関する開発者の専門知識を検証します。この試験に合格すると、複雑なデータモデルを操作し、ユーザーインターフェイスを設計し、効率的でスケーラブルなコードを作成する開発者の能力が示されています。
DEX-450試験問題集で無料サンプルは365日更新されます：https://www.goshiken.com/Salesforce/DEX-450-mondaishu.html
合格させるDEX-450試験問題と最新のDEX-450テスト問題集PDF：https://drive.google.com/open?id=19cZo3UCTT8LvlRbEecYPpIcSbD_CKDrf