Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 211:

  A developer tasked with creating a schema to track Movies, Actors, and contracts. A single movie can have many contracts and a single actor can have many contracts. Each contract is owned and actively managed by a single user. Which schema should be created to enable user to easily manage the contract they own; without requiring access to the movie or the actor records?

  A. A master detail relationship to the movie object and a lookup relationship to the actor object

  B. A lookup relationship to the movie object and a lookup relationship to the actor object

  C. A lookup relationship to the movie object and a master detail relationship to the actor object

  D. A master detail relationship to the movie object and a master detail relationship to the actor object

  Correct Answer: B

• Question 212:

  A candidate may apply to multiple jobs at the company Universal Containers by submtting a single application per job posting. Once an application is submitted for a job posting, that application cannot be modified to be resubmitted to a different job posting.What can the administrator do to associate an application with each job posting in the schema for the organization?

  A. Create a master-detail relationship in the Job Postings custom object to the Applications custom object.

  B. Create a master-detail relationship in the Application custom object to the Job Postings custom object.

  C. Create a lookup relationship on both objects to a junction object called Job Posting Applications.

  D. Create a lookup relationship in the Applications custom object to the Job Postings custom object

  Correct Answer: A

• Question 213:

  Which three methods help ensure quality data?

  A. Create a lookup filter

  B. Adding an error to a field in before trigger

  C. Sending an email alert using a workflow rule

  D. Handling an exception in Apex

  E. Adding a validation rule

  Correct Answer: ACE

• Question 214:

  Which two operations can be performed using a formula field? Choose 2 answers

  A. Displaying the last four digits of an encrypted Social Security number

  B. Triggering a Process Builder

  C. Displaying an Image based on the Opportunity Amount (Missed)

  D. Calculating a score on a Lead based on the information from another field (Missed)

  Correct Answer: CD

• Question 215:

  Which action can a developer take to reduce the execution time of the following code?

  List allaccounts = [select id from account]; list allcontacts = [select id, accountid from

  contact]; for (account a :allaccounts){ for (contact c:allcontacts){ if(c.accountid = a.id){ //do work } } }

  A. Use a map for allaccounts

  B. Add a group by clause to the contact SOQL

  C. Put the account loop inside the contact loop

  D. Create an apex helper class for the SOQL

  Correct Answer: A

• Question 216:

  What would a developer do to update a picklist field on related Opportunity records when a modification to the associated Account record is detected?

  A. Create a process with Process Builder.

  B. Create a workflow rule with a field update.

  C. Create a Lightning Component.

  D. Create a Visualforce page.

  Correct Answer: A

• Question 217:

  An Account trigger updates all related Contacts and Cases each time an Account is saved using the

  following two DML statements:

  update allContacts; update allCases;

  What is the result if the Case update exceeds the governor limit for maximum number of DML records?

  A. The Account save succeeds, Contacts are updated, but Cases are not.

  B. The Account save fails and no Contacts or Cases are updated

  C. The Account save is retried using a smaller trigger batch size.

  D. The Account save succeeds and no Contacts or Cases are updated

  Correct Answer: B

• Question 218:

  Which standard field needs to be populated when a developer inserts new Contact records programmatically?

  A. Accountld

  B. Name

  C. LastName

  D. FirstName

  Correct Answer: C

• Question 219:

  A Visual force page displays two fields named Phone Number and Email.User1 has access to Phone Number, but not to Email.User2 has access to Email, but not Phone NumberA developer needs to ensure that User1 can only see Phone Number, and User2 can only see Email.

  Which method can the developer use to achieve this?

  A. Schema isUpdateable() method.

  B. Schema isAccessible() method.

  C. Schema isReadable() method.

  D. Schema isCreateable() method.

  Correct Answer: B

• Question 220:

  For which example task should a developer use a trigger rather than a workflow rule?

  A. To set the primary Contact on an Account record when it is saved

  B. To send an email to hiring manager when a candidate accepts a job offer.

  C. To set the Name field of an expense report record to Expense and the Date when it is saved.

  D. To notify an external system that a record has been modified.

  Correct Answer: A