Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 151:

  Before putting an app into production, which step should be taken?

  A. Run the production check feature via the web interface

  B. Switch to a production database

  C. Insure that you have installed a performance introspection add-on

  D. Scale your dynos

  Correct Answer: A

• Question 152:

  How can a developer refer to, or instantiate a PageReference in Apex? Choose 2 answers

  A. By using a PageReference with a partial or full URL.

  B. By using the Page object and a Visualforce page name.

  C. By using the ApexPages.Page() method with a Visualforce page name.

  D. By using the PageReference.Page() method with a partial or full URL.

  Correct Answer: AB

• Question 153:

  The Sales Management team hires a new intern. The intern is not allowed to view Opportunities, but needs to see the Most Recent Closed Date of all child Opportunities when viewing an Account record. What would a developer do to meet this requirement?

  A. Create a trigger on the Account object that queries the Close Date of the most recent Opportunities.

  B. Create a Workflow rule on the Opportunity object that updates a field on the parent Account.

  C. Create a formula field on the Account object that performs a MAX on the Opportunity Close Date field.

  D. Create a roll-up summary field on the Account object that performs a MAX on the Opportunity Close Date field.

  Correct Answer: D

• Question 154:

  What is the result when a Visualforce page calls an Apex controller, which calls another Apex class, which then results in hitting a governor limit?

  A. Any changes up to the error are saved.

  B. Any changes up to the error are rolled back.

  C. All changes before a savepoint are saved.

  D. All changes are saved in the first Apex class.

  Correct Answer: B

• Question 155:

  A developer must provide a custom user interface when users edit a Contact. Users must be able to use the interface in Salesforce Classic and Lightning Experience. What should the developer do to provide the custom user interface?

  A. Override the Contact's Edit button with a Lightning page Salesforce Classic and a Visualforce page in Lightning Experience.

  B. Override the Contact's Edit button with a Visualforce page in Salesforce Classic and a Lightning page in Lightning experience.

  C. Override the Contact's Edit button with a Visualforce page in Salesforce Classic and a Lightning component in Lightning Experience.

  D. Override the Contact's Edit button with a Lightning component in Salesforce Classic and a Lightning component in Lightning experience.

  Correct Answer: C

• Question 156:

  What are three techniques that a developer can use to invoke an anonymous block of code? Choose 3 answers

  A. Create a visualforce page that uses a controller class that is declared without sharing

  B. Type code into the developer console and execute it directly

  C. Type code into the execute anonymous tab in the force.com IDE and click execute

  D. Use the SOAP API to make a call to execute anonymous code

  E. Create and execute a test method that does not specify a runas() call

  Correct Answer: BCD

• Question 157:

  A developer can use the debug log to see which three types of information? Choose 3 answers

  A. Resource usage and limits

  B. Database changes

  C. User login events

  D. HTTP callout to external systems

  E. Actions triggered by time-based workflow

  Correct Answer: BDE

• Question 158:

  A developer wants to create a custom object to track Customer Invoices.

  How should Invoices and Accounts be related to ensure that all Invoices are visible to everyone with access to an Account?

  A. The Account should have a Master-Detail relationship to the Invoice.

  B. The Invoice should have a Master-Detail relationship to the Account

  C. The Account should have a Lookup relationship to the Invoice

  D. The Invoice should have a Lookup relationship to the Account Previous

  Correct Answer: B

• Question 159:

  From which 2 locations can a developer determine the overall code coverage for a sandbox?

  A. The test suite run panel of the developer console

  B. The apex classes setup page

  C. The apex test execution page

  D. The tests tab of the developer console

  Correct Answer: BD

• Question 160:

  What is the accurate statement about with sharing keyword? choose 2 answers

  A. Inner class do not inherit the sharing setting from the container class

  B. Both inner and outer class can be declared as with sharing

  C. Either inner class or outer classes can be declared as with sharing but not both

  D. Inner class inherit the sharing setting from the container class

  Correct Answer: AB