Salesforce DEX-450 問題集 練習問題・模擬試験｜日本語版＆英語版対応

サンプル問題 1： Which statement results in an Apex compiler error?

• A: Map<Id,Leas> lmap = new Map<Id,Lead>([Select ID from Lead Limit 8]);
• B: Date d1 = Date.Today(), d2 = Date.ValueOf(‘2018-01-01’);
• C: Integer a=5, b=6, c, d = 7;
• D: List<string> s = List<string>{‘a’,‘b’,‘c’);

サンプル問題 2： What are two benefits of the Lightning Component framework? (Choose two.)

• A: It simplifies complexity when building pages, but not applications.
• B: It provides an event-driven architecture for better decoupling between components.
• C: It promotes faster development using out-of-box components that are suitable for desktop and mobile devices.
• D: It allows faster PDF generation with Lightning components.

サンプル問題 3： A method is passed a list of generic sObjects as a parameter. What should the developer do to determine which object type (Account, Lead, or Contact, for example) to cast each sObject?

• A: Use the first three characters of the sObject ID to determine the sObject type.
• B: Use the getSObjectType method on each generic sObject to retrieve the sObject token.
• C: Use the getSObjectName method on the sObject class to get the sObject name.
• D: Use a try-catch construct to cast the sObject into one of the three sObject types.