2021 Valid DEX-450 Exam Updates - 2021 Study Guide
DEX-450 Certification - The Ultimate Guide [Updated 2021]
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NEW QUESTION 205
A developer is asked to set a picklist field to 'Monitor' on any new Leads owned by a subnet of Users.
How should the developer implement this request?
- A. Create a before insert Lead trigger.
- B. Create a Lead formula field.
- C. Create an after insert Lead trigger.
- D. Create a Lead Workflow Rule Field Update.
Answer: D
NEW QUESTION 206
What is a benefit of using an after insert trigger over using a before insert trigger?
- A. An after insert trigger allows a developer to bypass validation rules when updating fields on the new record.
- B. An after insert trigger allows a developer to insert other objects that reference the new record.
- C. An after insert trigger allows a developer to make a callout to an external service.
- D. An after insert trigger allows a developer to modify fields in the new record without a query.
Answer: B
NEW QUESTION 207
Which statement generates a list of Leads and Contacts that have a field with the phrase 'ACME'?
- A. Map <sObject> searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);
- B. List<List <sObject>> searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);
- C. List <sObject> searchList = (FIND "*ACME*" IN ALL FIELDS RETURNING Contact, Lead);
- D. List<List < sObject>> searchList = (SELECT Name, ID FROM Contact, Lead WHERE Name like '%ACME%');
Answer: B
NEW QUESTION 208
Which two conditions cause workflow rules to fire? Choose 2 answers
- A. An Apex Batch process that changes field values
- B. Updating records using the bulk API
- C. Changing the territory assignments of accounts and opportunities
- D. Converting leads to person accounts
Answer: A,B
NEW QUESTION 209
A developer creates an Apex class that includes private methods. What can the developer do to ensure that the private methods can be accessed by the test class?
- A. Add the TestVisible attribute to the Apex class
- B. Add the SeeAllData attribute to the test class
- C. Add the SeeAllData attribute to the test methods.
- D. Add the TestVisible attribute to the apex methods.
Answer: D
NEW QUESTION 210
In a single record, a user selects multiple values from a multi-select picklist. How are the selected values represented in Apex?
- A. As a String with each value separated by a semicolon
- B. As a String with each value separated by a comma
- C. As a List with each value as an element in the list Previous
- D. As a Set with each value as an element in the set
Answer: A
NEW QUESTION 211
A developer needs to join data received from an integration with an external system with parent records in Salesforce. The data set does not contain the Salesforce IDs of the parent records, but it does have a foreign key attribute that can be used to identify the parent.
Which action will allow the developer to relate records in the data model without knowing the Salesforce ID?
- A. Create a custom field on the child object of type Foreign Key.
- B. Create and populate a custom field on the parent object marked as Unique.
- C. Create a custom field on the child object of type External Relationship.
- D. Create and populate a custom field on the parent object marked as an External ID.
Answer: A
NEW QUESTION 212
An org has different Apex Classes that provide Account -related functionality.After a new validation rule is added to the object, many of the test methods fail.What can be done to resolve the failures and reduce the number of code changes needed for future validation rules?Choose 2 answers:
- A. Create a method that performs a callout for a valid Account record, and call this method from within test methods.
- B. Create a method that queries for valid Account records, and call this method from within test methods.
- C. Create a method that loads valid Account records from a Static Resource, and call this method within test methods.
- D. Create a method that creates valid Account records, and call this method from within test methods.
Answer: C,D
NEW QUESTION 213
How should a custom user interface be provided when a user edits an Account in Lightning Experience?
- A. Override the Account's Edit button with Lightning Flow
- B. Override the Account's Edit button with Lightning page.
- C. Override the Account's Edit button with Lightning component.
- D. Override the Account's Edit button with Lightning Action
Answer: C
NEW QUESTION 214
Which two queries can a developer use in a visualforce controller to protect against SOQL injection Vulnerabilities? Choose 2 answers
- A. String qryName = '%' + name '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- B. String qryName = '%' + String.escpaeSingleQuotes(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- C. String qryName = '%' + String.enforceSecurityChecks(name)+ '%'; String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
- D. String qryString = 'SELECT Id FROM Contact WHERE Name LIKE :qryNAme'; List queryResults = Database.query(qryString);
Answer: C,D
NEW QUESTION 215
When the number of record in a recordset is unknown, which control statement should a developer use to implement a set of code that executes for every record in the recordset, without performing a .size() or .length() method call?
- A. While (Condition) { ... }
- B. Do { } While (Condition)
- C. For (init_stmt, exit_condition; increment_stmt) { }
- D. For (variable : list_or_set) { }
Answer: D
NEW QUESTION 216
A developer has created a Visualforce Page and Apex Controller that uses the With Sharing keyword. The page will be used of by Sales Managers and should only display Accounts owned by Sales Representatives who report to the running Sales Manager. The organization-wide sharing for Accounts is set to Private. Which additional set of stops should the developer take?
- A. Create two Profiles, one Permission Set, and one Role.
- B. Create one Profile, one Permission Set, and two Roles.
- C. Create one Profile, two Permission Sets, and one Role.
- D. Create one Profile, one Permission Set, and one Role.
Answer: B
NEW QUESTION 217
A developer has the controller class below.
Which code block will run successfully in an execute anonymous window?
- A. myFooController m = new myFooController();System.assert(m.prop !=null);
- B. myFooController m = new myFooController();System.assert(m.prop ==0);
- C. myFooController m = new myFooController();System.assert(m.prop ==null);
- D. myFooController m = new myFooController();System.assert(m.prop ==1);
Answer: C
NEW QUESTION 218
A developer wants to use all of the functionality provided by the standard controller for an object, but needs to override the Save standard action in a controller extension. Which two are required in the controller extension class?
- A. Create a method named Save with a return data type of PageReference.
- B. Create a method that references this.superSave()
- C. Define the class with a constructor that creates a new instance of the StandardController class.
- D. Define the class with a constructor that takes an instance of StandardController as a parameter.
Answer: A,D
NEW QUESTION 219
In which order does Salesforce execute events upon saving a record?
- A. Validation Rules; Before Triggers; After Triggers; Workflow Rules; Assignment Rules; Commit
- B. Before Triggers; Validation Rules; After Triggers; Workflow Rules; Assignment Rules; Commit
- C. Before Triggers; Validation Rules; After Triggers; Assignment Rules; Workflow Rules; Commit
- D. Validation Rules; Before Triggers; After Triggers; Assignment Rules; Workflow Rules; Commit
Answer: C
NEW QUESTION 220
What are the eight officially supported languages on Heroku platform?
- A. C#,C++,Node,Ruby,Java,PHP,Go,.Net.
- B. Node,Ruby,java,PHP,Python,.Net,C++.
- C. Lisp,PHP,Node,Ruby,Scala,Haskell,Go,Erlang.
- D. Node,Ruby java,PHP,Python,Go,Scala,Clojure.
Answer: D
NEW QUESTION 221
Requirements state that a child record be to deleted when its parent is deleted, and a child can be moved to a different parent when necessary. Which type of relationship should be built between the parent and child objects in Schema Builder to support these requirements?
- A. Child relationship
- B. Lookup Relathionship from to parent to the child
- C. Master-Detail relationship
- D. Lookup Relathionship from to child to the parent
Answer: C
NEW QUESTION 222
Which declarative method helps ensure quality data? (Choose 3)
- A. Validation Rules
- B. Workflow alerts
- C. Lookup Filters
- D. Page Layouts
- E. Exception Handling
Answer: A,C,D
NEW QUESTION 223
Which type of code represents the Controller in MVC architecture on the Force.com platform? (Choose 2)
- A. JavaScript that is used to make a menu item display itself.
- B. Custom Apex and JavaScript coda that is used to manipulate data.
- C. StandardController system methods that are referenced by Visualforce.
- D. A static resource that contains CSS and images.
Answer: B,C
NEW QUESTION 224
A developer needs to test an Invoicing system integration. After reviewing the number of transactions required for the test, the developer estimates that the test data will total about 2 GB of data storage. Production data is not required for the integration testing.
Which two environments meet the requirements for testing? (Choose two.)
- A. Developer Pro Sandbox
- B. Developer Sandbox
- C. Partial Sandbox
- D. Full Sandbox
- E. Developer Edition
Answer: C,D
NEW QUESTION 225
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Who should take the Salesforce DEX-450 Exam
This course is designed for programme developers starting on the Salesforce platform who require programming customizations on Apex and Visualforce business logic as well as on user interface layers. There are no prerequisites for Salesforce DEX-450 Exam.
- Programmatic developers.
How to book the Salesforce DEX-450 Exam
There are the following steps for registering the Salesforce DEX-450 exam:
Step 1: Visit Salesforce Exam Registration Step 2: Signup/Login to Salesforce account Step 4: Select Date, time and confirm with the payment method
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