Salesforce DEX-450 Online Practice Questions and Exam Preparation

Salesforce DEX-450 Online Questions & Answers

• Question 231:

  A developer needs to know if all tests currently pass in a Salesforce environment. Which feature can the developer use? (Choose 2)

  A. ANT Migration Tool
  B. Workbench Metadata Retrieval
  C. Salesforce UI Apex Test Execution
  D. Developer Console
  C. Salesforce UI Apex Test Execution
  D. Developer Console

• Question 232:

  What should be used to create scratch orgs?

  A. Sandbox refresh
  B. Salesforce CLI
  C. Developer Console
  D. Workbench
  B. Salesforce CLI

• Question 233:

  How can a developer use a Set to limit the number of records returned by a SOQL query?

  A. Reference the Set in the LIMIT clause of the query
  B. Pass the query results as an argument in a reference to the Set.containsAll() method.
  C. Pass the Set as an argument in a reference to the Database.query() method
  D. Reference the Set in the WHERE clause of the query
  D. Reference the Set in the WHERE clause of the query

• Question 234:

  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 235:

  A developer is asked to create a custom visualforce page that will be used as a dashboard component. Which three are valid controller options for this page? Choose 3 answers

  A. Use a custom controller
  B. Use a custom controller with extensions
  C. Use a standard controller with extensions
  D. Do not specify a controller
  E. Use a standard controller
  A. Use a custom controller
  C. Use a standard controller with extensions
  E. Use a standard controller

• Question 236:

  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
  A. Create a lookup filter
  C. Sending an email alert using a workflow rule
  E. Adding a validation rule

• Question 237:

  A developer is creating an application to track engines and their parts. An individual part can be used in different types of engines. What data model should be used to track the data and to prevent orphan records?

  A. Create a junction object to relate many engines to many parts through a master-detail relationship
  B. Create a lookup relationship to represent how each part relates to the parent engine object.
  C. Create a master-detail relationship to represent the one-to-many model of engines to parts.
  D. Create a junction object to relate many engines to many parts through a lookup relationship
  A. Create a junction object to relate many engines to many parts through a master-detail relationship

• Question 238:

  Which type of code represents the view in the MVC architecture on the Force.com platform?

  A. An apex method in an extension that returns a list of cases
  B. An apex method that executes SOQL to retrieve a list of cases
  C. A visualforce page that dysplays information about case records by iterating over a list of cases
  D. Validation rules for a page layout that includes a related list of cases
  C. A visualforce page that dysplays information about case records by iterating over a list of cases

• Question 239:

  A developer needs to avoid potential system problems that can arise in a multi-tenant architecture. Which requirement helps prevent poorty written applications from being deployed to a production environment?

  A. SOQL queries must reference sObActs with their appropriate namespace.
  B. All Apex code must be annotated with the with sharing keyword.
  C. Unit tests must cover at least 75% of the application's Apex code
  D. All validation rules must be active before they can be deployed.
  C. Unit tests must cover at least 75% of the application's Apex code

• Question 240:

  What is a capability of the Force.com IDE? Choose 2 answers A. Roll back deployments.

  B. Run Apex tests.
  C. Download debug logs.
  D. Edit metadata components.
  B. Run Apex tests.
  D. Edit metadata components.