Salesforce CRT-450 Online Practice Questions and Exam Preparation

Salesforce CRT-450 Online Questions & Answers

• Question 321:

  Which tool can deploy destructive changes to apex classes in production?

  A. Workbench
  B. Salesforce setup
  C. Change sets
  D. Developer Console
  A. Workbench

• Question 322:

  Management asked for opportunities to be automatically created for accounts with annual revenue greater than $1,000,000. A developer created the following trigger on the Account object to satisfy this requirement.

  

  Users are able to update the account records via the UI and can see an opportunity created for high annual revenue accounts. However, when the administrator tries to upload a list of 179 accounts using Data Loader, It fails with system.

  Exception errors.

  Which two actions should the developer take to fix the code segment shown above?

  Choose 2 answers

  A. Check if all the required fields for Opportunity are being added on creation.
  B. Use Database.query to query the opportunities.
  C. Move the DML that saves opportunities outside the for loop.
  D. Query for existing opportunities outside the for loop.
  C. Move the DML that saves opportunities outside the for loop.
  D. Query for existing opportunities outside the for loop.

• Question 323:

  Given the code block: Integer x; for (x =0; x<10; x+=2){ if (x==8) break; if (x==10) break; } system.debug(x); Which value will the system.debug display?

  A. 2
  B. 4
  C. 8
  D. 10
  C. 8

• Question 324:

  How can a developer avoid exceeding governor limits when using an Apex Trigger?choose 2 answers

  A. By using a helper class that can be invoked from multiple triggers.
  B. By using the Database class to handle DML transactions.
  C. By using Maps to hold data from query results.
  D. By performing DML transactions on lists of SObjects.
  C. By using Maps to hold data from query results.
  D. By performing DML transactions on lists of SObjects.

• Question 325:

  A developer created a helper class with a method that can be called from Visualforce pages, web services, triggers, and of even anonymous code. When the method is called from a trigger, the developer needs to execute logic that should not be executed If the method Is called from anywhere else. How can the developer determine if the code Is executed in a trigger context?

  A. Check if System.executionContext =='Trigger'.
  B. Use the executeOnTrigger annotation on the method definition.
  C. Check if Trigger.isExecuting ==true
  D. Check if Trigger.newMap !=null.
  C. Check if Trigger.isExecuting ==true

• Question 326:

  A developer needs to create a baseline set of data (Accounts, Contacts, Products, Assets) for an entire suite of tests allowing them to test independent requirements various types of Salesforce Cases.

  Which approach can efficiently generate the required data for each unit test?

  A. Add @IsTest(seeAllData=true) at the start of the unit test class
  B. Create test data before test.startTest() in the test unit.
  C. Use @TestSetup with a void method
  D. Create a mock using Stub API
  C. Use @TestSetup with a void method

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  Explanation/Reference:

• Question 327:

  Which two describe Heroku Redis? Choose 2 answers.

  A. Is an in-memory key-value data store, run by Heroku.
  B. Is a repository for storing large images.
  C. Is an option for long-term data storage.
  D. Is provisioned and managed as an add-on.
  A. Is an in-memory key-value data store, run by Heroku.
  D. Is provisioned and managed as an add-on.

• Question 328:

  Which type of code represents the Model in the MVC architecture when using Apex and Visualforce pages?

  A. A Controller Extension method that saves a list of Account records
  B. Custom JavaScript that processes a list of Account records
  C. A list of Account records returned from a Controller Extension method
  D. A Controller Extension method that uses SOQL to query for a list of Account records
  C. A list of Account records returned from a Controller Extension method

• Question 329:

  To which data type in Apex a currency field automatically assigned?

  A. Integer
  B. Decimal
  C. Double
  D. Currency
  B. Decimal

• Question 330:

  Which two statements are true regarding formula fields? Choose 2 answers

  A. When using the and operator to concatenate strings, the result is automatically truncated to fit the destination.
  B. Fields that are referenced by formula field can not be deleted until the formula is modified or deleted.
  C. When concatenating fields, line breaks can be added to improve readability.
  D. Formula fields may reference formula field on the same object to a level of one deep.
  B. Fields that are referenced by formula field can not be deleted until the formula is modified or deleted.
  D. Formula fields may reference formula field on the same object to a level of one deep.