Salesforce CRT-450 Online Practice Questions and Exam Preparation

Salesforce CRT-450 Online Questions & Answers

• Question 121:

  What can be developed using the Lightning Component framework?

  A. Hosted web applications
  B. Single-page web apps
  C. Dynamic web sites
  D. Salesforce integrations
  B. Single-page web apps

• Question 122:

  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.
  D. Use a private Boolean variable.

• Question 123:

  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 and populate a custom field on the parent object marked as Unique.
  B. Create a custom field on the child object of type External Relationship.
  C. Create and populate a custom field on the parent object marked as an External ID.
  D. Create a custom field on the child object of type Foreign Key.
  C. Create and populate a custom field on the parent object marked as an External ID.

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  Explanation/Reference:

• Question 124:

  When is an Apex Trigger required instead of a Process Builder Process?

  A. When a record needs to be created
  B. When multiple records related to the triggering record need to be updated
  C. When a post to Chatter needs to be created
  D. When an action needs to be taken on a delete or undelete, or before a DML operation is executed.
  D. When an action needs to be taken on a delete or undelete, or before a DML operation is executed.

• Question 125:

  A developer wants to list all of the Tasks for each Account on the Account detail page. When a task is created for a Contact, what does the developer need to do to display the Task on the related Account record?

  A. Nothing. The task is automatically displayed on the Account page.
  B. Nothing. The Task cannot be related to an Account and a Contact.
  C. Create a Workflow rule to relate the Task to the Contact's Account.
  D. Create an Account formula field that displays the Task information.
  A. Nothing. The task is automatically displayed on the Account page.

• Question 126:

  When are code coverage calculations updated?

  A. When unit tests are run on an organization.
  B. When changes are made to an organization's configuration.
  C. When a deployment is validated.
  D. When Apex code is saved.
  A. When unit tests are run on an organization.

• Question 127:

  A developer creates an Apex Trigger with the following code block:List customers = new List();For (Order__c o: trigger.new){Account a = [SELECT Id, Is_Customer__c FROM Account WHERE Id =:o.Customer__c];a.Is_Customer__c = true;customers.add(a);}Database.update(customers, false);The developer tests the code using Apex Data Loader and successfully loads 10 Orders. Then, the developer loads 150 Orders.How many Orders are successfully loaded when the developer attempts to load the 150 Orders?

  B. 1
  C. 150
  D. 100
  A

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  Explanation/Reference:

• Question 128:

  When can a developer use a custom Visualforce page in a Force.com application? (Choose 2)

  A. To generate a PDF document with application data
  B. To create components for dashboards and layouts
  C. To deploy components between two organizations
  D. To modify the page layout settings for a custom object
  A. To generate a PDF document with application data
  B. To create components for dashboards and layouts

• Question 129:

  What is a benefit of developing applications in a multi-tenant environment?

  A. Access to predefined computing resources
  B. Enforced best practices for development
  C. Unlimited processing power and memory
  D. Default out-of-the-box configuration
  B. Enforced best practices for development

• Question 130:

  What are two considerations for custom Apex Exception classes? Choose 2 answers.

  A. Custom Exceptions cannot be extended by other Exception classes.
  B. Custom Exception class names must end with the word 'Exception'.
  C. Custom Exception classes must extend the base Exception class.
  D. Constructor for custom Exceptions can only accept string values as arguments.
  B. Custom Exception class names must end with the word 'Exception'.
  C. Custom Exception classes must extend the base Exception class.