DEX-450 by Salesforce Actual Free Exam Questions And Answers

Question 1

Provide question feedback here (optional):

Based on this code, what is the value of x?

A. 2

B. 4

C. 3

D. 1

Discussion 0

Correct Answer: B Vote an answer

Question 2

What are two benefits of using declarative customizations over code?
Choose 2 answer

A. Declarative customizations automatically update with each Salesforce release.

B. Declarative customizations automatically generate test classes.

C. Declarative customizations generally require less maintenance

D. Declarative customizations cannot generate run time errors

Discussion 0

Correct Answer: A,C Vote an answer

Question 3

A Primaryld_c custom field exists on the Candidate _c custom object. The field is used to store each candidate's id number and is marked as Unique in the schema definition.
As part of a data enrichment process, Universal Containers has a CSV file that contains updated data for all candidates in the system. The file contains each Candidate's primary .. as a data point. Universal Containers wants to upload this information into Salesforce, while ensuring all data rows are correctly mapped to a candidate in the system.
Which technique should the developer implement to streamline the data upload?

A. Update the Primarytd_c field definition to mark it. as.an External Id.

B. Upload the CSV into-a custom object related to candidate__c.

C. Create a before insert trigger to correctly map the records,

D. Create a before save flow to correctly map the records.

Discussion 0

Correct Answer: A Vote an answer

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Question 4

A developer needs to implement a custom SOAP Web Service that is used by an external Web Application. The developer chooses to include helper methods that are not used by the Web Application in the implementation of the Web Service Class.
Which code segment shows the correct declaration of the class and methods?

A.

B.

C.

D.

Discussion 0

Correct Answer: B Vote an answer

Question 5

A developer must perform a complex SOQL query that joins two objects in a Lightning component.
How can the Lightning component execute the query?

A. Write the query in a custom Lightning web component wrapper and invoke from the Lightning component.

B. Use the Salesforce Streaming APL to perform the SOQL query.

C. Create a flow to execute the query end invoke from the Lightning component.

D. Invoke an Apex class with the method annotated as @AuraEnabled to perform the query.

Discussion 0

Correct Answer: A Vote an answer

Question 6

A team of many developers work in their own individual orgs that have the same configuration as the production org.
Which type of org is best suited for this scenario?

A. Developer Edition

B. Developer Sandbox

C. Partner Developer Edition

D. Full Sandbox

Discussion 0

Correct Answer: D Vote an answer

Question 7

What are two considerations for deploying from a sandbox to production?
Choose 2 answers

A. All triggers must have at least one line of test coverage.

B. Should deploy during business hours to ensure feedback can be quickly addressed.

C. At least 75% of Apex code must be covered by unit tests.

D. Unit tests must have calls to the System.assert method.

Discussion 0

Correct Answer: A,C Vote an answer

Question 8

If Apex code executes inside the execute() method of an Apex class when implementing the Batchable interface, which two statements are true regarding governor limits?
Choose 2 answers

A. The Apex governor limits are reset for each iteration of the execute () method.

B. The Apex governor limits will use the asynchronous limit levels.

C. The Apex governor limits cannot be exceeded due to the asynchronaus nature of the transaction.

D. The Apex governor limits are omitted while calling the constructor of the Apex class.

Discussion 0

Correct Answer: A,C Vote an answer

Question 9

What are three considerations when using the @lnvocableMethod annotation in Apex?
Choose 3 answers

A. GO A method using the @invocablemethod annotation must define a return value.

B. A method using the @invocableMethod annotation can be declared as Public or Global.

C. A method using the @invocablemethod annotation must be declaredas static,

D. A method using the @invecableMethod annotation can have multiple input parameters.

E. Only one method using the @invecableMethod annotation can be defined per Apex class_

Discussion 0

Correct Answer: B,C,E Vote an answer

Question 10

Which scenario is valid for execution by unit tests?

A. Set the created date of a record using a system method.

B. Execute anonymous Apex as a different user.

C. Generate a Visualforce PDF with getcontentaAsPDF ().

D. Load data from a remote site with a callout.

Discussion 0

Correct Answer: A Vote an answer

Question 11

A developer is creating a Lightning web component to show a list of sales records.
The Sales Representative user should be able to see the commission field on each record. The Sales Assistant user should be able to see all fields on the record except the commission field.
How should this be enforced so that the component works for both users without showing any errors?

A. Use Lightning Data Service to get the collection of sales records.

B. Use Security.stripInaccessible Le to remove fields inaccessible to the current user.

C. Use Lightning Locker Service to enforce sharing rules and field-level security.

D. Use WITH SECURITY_ENFORCED In the SOQL that fetches the data for the component,

Discussion 0

Correct Answer: B Vote an answer

Question 12

What is a considerations for running a flow in debug mode?

A. DML operations will be rolled back when the debugging ends.

B. When debugging a schedule-triggered flow, the flow starts only for one record.

C. Callouts to external are not when debugging a flow.

D. Clicking Pause allows an element to be replaced in the flow.

Discussion 0

Correct Answer: C Vote an answer

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

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