SFDC_DEV501真题及答案.docxVIP

1. ZoomWhat are 3 differences between Apex vs Java?ZoomApex executes in a multi-tenant environment and is very controlled in its invocations and governor limitsApex is case insensitiveApex requires unit testing before deployment to productionHideInsert Card2. ZoomTrue or False: Inner classes may only be declared one level deepZoomTrueHideInsert Card3. ZoomTrue or False: By default, all Apex executes under the System user, ignoring all CRUD, field-level, and row-level security.ZoomTrue - you must use the with sharing keyword to execute apex using security settingsHideInsert Card4. ZoomTrue or False: Apex can be authored in a production environment?ZoomFalse - Apex must be authored in a sandbox environment and have 75% test code coversage before it can be migrated to productionHideInsert Card5. ZoomWhen testing a trigger you have created how many records should be included in the test case to ensure the total # of SOQL queries governor limit is not exceededA minimum of 101 - The governor limit is 100 SOQL queries per transactionHideDebug -Insert Card6. ZoomName the 6 data types that all variables and expressions haveZoomPrimitives (Integer, String, Boolean etc)Enums (An enumerated list)sObjects (Account, Case, Custom__c)Collections (List, Set or Map of primitives)Objects (User or System defined)NullHideInsert Card7. ZoomWhat would the syntax be to create a new class named MyNewClass which should be accessible from anywhere in the org?Zoompublic class MyNewClass()HideInsert Card8. ZoomWhat is the difference between global and public access modifiers?Zoomglobal - accessible by all Apex everywhere including other namespacespublic - accessible only across your application or namespaceHideInsert Card9. ZoomWhat is the declaration syntax for attributes?Zoommodifiers dataType varibalName initializationprivate Integer i = 200;HideInsert Card10. ZoomWhat is the declaration syntax for methods?Zoommodifiers returnDataType methodName(inputs)public Integer getInt() {return myInt;}