Salesforce Salesforce Certifications CRT-450 Questions & Answers

• Question 261:

  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 List with each value as an element in the list

  B. As a String with each value separated by a comma

  C. As a String with each value separated by a semicolon

  D. As a Set with each value as an element in the set

  Correct Answer: C

• Question 262:

  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);

  Correct Answer: C

• Question 263:

  A Platform Developer needs to write an Apex method that will only perform an action if a record is assigned to a specific Record Type. Which two options allow the developer to dynamically determine the ID of the required Record Type by its name? (Choose two.)

  A. Make an outbound web services call to the SOAP API.

  B. Hardcode the ID as a constant in an Apex class.

  C. Use the getRecordTypeInfosByName() method in the DescribeSObjectResult class.

  D. Execute a SOQL query on the RecordType object.

  Correct Answer: CD

• Question 264:

  What is a capability of the tag that is used for loading external Javascript libraries in Lightning Component? (Choose three.)

  A. Loading files from Documents.

  B. One-time loading for duplicate scripts.

  C. Specifying loading order.

  D. Loading scripts in parallel.

  E. Loading externally hosted scripts.

  Correct Answer: BCD

• Question 265:

  Which three options can be accomplished with formula fields? (Choose three.)

  A. Generate a link using the HYPERLINK function to a specific record.

  B. Display the previous value for a field using the PRIORVALUE function.

  C. Determine if a datetime field value has passed using the NOW function.

  D. Return and display a field value from another object using the VLOOKUP function.

  E. Determine which of three different images to display using the IF function.

  Correct Answer: ACE

• Question 266:

  How should a developer prevent a recursive trigger?

  A. Use a "one trigger per object" pattern.

  B. Use a static Boolean variable.

  C. Use a trigger handler.

  D. Use a private Boolean variable.

  Correct Answer: D

• Question 267:

  A Visualforce page is required for displaying and editing Case records that includes both standard and custom functionality defined in an Apex class called myControllerExtension. The Visualforce page should include which attribute(s) to correctly implement controller functionality?

  A. controller="Case" and extensions="myControllerExtension"

  B. extensions="myControllerExtension"

  C. controller="myControllerExtension"

  D. standardController="Case" and extensions="myControllerExtension"

  Correct Answer: D

• Question 268:

  A newly hired developer discovers that there are multiple triggers on the case object.

  What should the developer consider when working with triggers?

  A. Developers must dictate the order of trigger execution.

  B. Trigger execution order is based on creation date and time.

  C. Unit tests must specify the trigger being tested.

  D. Trigger execution order is not guaranteed for the same sObject.

  Correct Answer: D

• Question 269:

  What is the requirement for a class to be used as a custom Visualforce controller?

  A. Any top-level Apex class that has a constructor that returns a PageReference

  B. Any top-level Apex class that extends a PageReference

  C. Any top-level Apex class that has a default, no-argument constructor

  D. Any top-level Apex class that implements the controller interface

  Correct Answer: D

• Question 270:

  Which two statements are true about using the @testSetup annotation in an Apex test class? (Choose two.)

  A. The @testSetup annotation cannot be used when the @isTest(SeeAllData=True) annotation is used.

  B. Test data is inserted once for all test methods in a class.

  C. Records created in the @testSetup method cannot be updates in individual test methods.

  D. The @testSetup method is automatically executed before each test method in the test class is executed.

  Correct Answer: AB

  "Use test setup methods (methods that are annotated with @testSetup) to create test records once and then access them in every test method in the test class."

  "...Records that are created in a test setup method are available to all test methods in the test class and are rolled back at the end of test class execution. If a test method changes those records, such as record field updates or record deletions, those changes are rolled back after each test method finishes execution. The next executing test method gets access to the original unmodified state of those records."

  https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode/apex_testing_testsetup_using.htm :