DEX-450 by Salesforce Actual Free Exam Q&As

Question 1

Which three statements are accurate about debug logs?
Choose 3 answers

A. The maximum size of a debug log is 5 MB. B. Debug log levels are cumulative, where FINE log level includes all events logged at the DEBUG, INFO, WARN, and ERROR levels. C. System debug logs are retained for 24 hours. D. Only the 20 most recent debug logs for a user are kept. E. Debug logs can be set for specific users, classes, and triggers.

Discussion 0

Correct Answer: A,C,E Vote an answer

Question 2

Which code displays the contents of a Visualforce page as a PDF?

A. <apex:page contentType-"applic*ticn/pdf''> B. <apex:page renderAs=''application/pdf''> C. <apex:page contentType-"pdf"> D. <apex:page renderAs-wpdf">

Discussion 0

Correct Answer: D Vote an answer

Question 3

Given the following Anonymous block:

What should a developer consider for an environment that has over 10,000 Case records?

A. The try-catch block will handle exceptions thrown by governor limits. B. The try-catch block will handle any DML exceptions thrown, C. The transaction will fail due to exceeding the governor limit. D. The transaction will succeed and changes will be committed.

Discussion 0

Correct Answer: C Vote an answer

Question 4

A developer must create a DrawList class that provides capabilities defined in the Sortable and Drawable interfaces.

Which is the correct implementation?

A.

B.

C.

D.

Discussion 0

Correct Answer: A Vote an answer

Question 5

Universal Containers decided to transition from Classic to Lightning Experience. They asked a developer to replace a JavaScript button that was being used to create records with prepopulated values.
What can the developer use to accomplish this?

A. Apex triggers B. Record triggered flows C. Quick Actions D. Validation rules

Discussion 0

Correct Answer: C Vote an answer

Question 6

Which two are best practices when it comes to Aura component and application event handling?
Choose 2 answers

A. Try to use application events as opposed to component events. B. Reuse the event logic in a component bundle, by putting the logic in the helper. C. Handle low-level events in the event handler and re-fire them as higher-level events. D. Use component events to communicate actions that should be handled at the application level.

Discussion 0

Correct Answer: B,C Vote an answer

Question 7

A developer must troubleshoot to pinpoint the causes of performance issues when a custom page loads in their org.
Which tool should the developer use to troubleshoot query performance?

A. AppExchange B. Setup Menu C. Developer Console D. Visual Studio Code IDE

Discussion 0

Correct Answer: C Vote an answer

Question 8

Where are two locations a developer can look to find information about the status of batch or future methods?
Choose 2 answers

A. Apex Jobs B. Developer Console C. Apex Flex Queue D. Paused Flow Interviews component

Discussion 0

Correct Answer: A Vote an answer

Salesforce Programmatic Development using Apex and Visualforce in Lightning Experience - DEX-450 Exam Practice Test