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質問 1：
A software company is using Salesforce to track the companies they sell their software to in the Account object. They also use Salesforce to track bugs in their software with a custom object, Bug__c.
As part of a process improvement initiative, they want to be able to report on which companies have reported which bugs. Each company should be able to report multiple bugs and bugs can also be reported by multiple companies.
What is needed to allow this reporting?
A. Function object between Bug__c and Account
B. Roll-up summary field of Bug_c on Account
C. Master-detail field on Bug_c to Account
D. Lookup field on Bug_c to Account
正解：A
質問 2：
Universal Containers wants a list button to display a Visualforce page that allows users to edit multiple records.
Which Visualforce feature supports this requirement?
A. Standard controller and the recordsetvar page attribute
B. Custom List Controller with recorasetvar page attribute
C. Controller Extension and <spex:listButton> tag
D. Standard Controller with Custom List Controller extension
正解：A
質問 3：
In terms of the MVC paradigm, what are two advantages of implementing the view layer of a Salesforce application using Lightning Web Component-based development over Visualforce?
Choose 2 answers
A. Leg capturing via the Debug Logs Setup page
B. Self-contained and reusable units of an application
C. Built-in standard and custom set controllers
D. Rich component ecosystem
正解：B,D
質問 4：
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:
ist<Contact> performSearch (String lastName} [
return Database.query('SELECT Id, FirstName, LastName FROM Contact WHERE LastName Like s'+lastName+'s'")?; What are two ways the developer can update the method to prevent a SOQL injection attack?
Choose 2 answers
A. Use a regular expression on the parameter to remove special characters.
B. Use variable binding and replace the dynamic query with a static SOQL.
C. Use the Readonly annotation and the with sharing keyword on the class.
D. Use the sacapeSingleQuotes method to sanitize the parameter before its use.
正解：A,C
質問 5：
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. Use the Lightning Out JavaScript library to embed the Lightning Web Component in a Visualforce page and add 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. Embed the Lightning Web Component is a Visualforce Component and add directly 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：A
A software company is using Salesforce to track the companies they sell their software to in the Account object. They also use Salesforce to track bugs in their software with a custom object, Bug__c.
As part of a process improvement initiative, they want to be able to report on which companies have reported which bugs. Each company should be able to report multiple bugs and bugs can also be reported by multiple companies.
What is needed to allow this reporting?
A. Function object between Bug__c and Account
B. Roll-up summary field of Bug_c on Account
C. Master-detail field on Bug_c to Account
D. Lookup field on Bug_c to Account
正解：A
質問 2：
Universal Containers wants a list button to display a Visualforce page that allows users to edit multiple records.
Which Visualforce feature supports this requirement?
A. Standard controller and the recordsetvar page attribute
B. Custom List Controller with recorasetvar page attribute
C. Controller Extension and <spex:listButton> tag
D. Standard Controller with Custom List Controller extension
正解：A
質問 3：
In terms of the MVC paradigm, what are two advantages of implementing the view layer of a Salesforce application using Lightning Web Component-based development over Visualforce?
Choose 2 answers
A. Leg capturing via the Debug Logs Setup page
B. Self-contained and reusable units of an application
C. Built-in standard and custom set controllers
D. Rich component ecosystem
正解：B,D
質問 4：
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:
ist<Contact> performSearch (String lastName} [
return Database.query('SELECT Id, FirstName, LastName FROM Contact WHERE LastName Like s'+lastName+'s'")?; What are two ways the developer can update the method to prevent a SOQL injection attack?
Choose 2 answers
A. Use a regular expression on the parameter to remove special characters.
B. Use variable binding and replace the dynamic query with a static SOQL.
C. Use the Readonly annotation and the with sharing keyword on the class.
D. Use the sacapeSingleQuotes method to sanitize the parameter before its use.
正解：A,C
質問 5：
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. Use the Lightning Out JavaScript library to embed the Lightning Web Component in a Visualforce page and add 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. Embed the Lightning Web Component is a Visualforce Component and add directly 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：A
藤崎** -
DEX-450問題集には丁寧な解説がひたすら書いてあります。次はOmniStudio-Developerに挑戦していきたいと思います。