Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 21:

  Which statement should a developer avoid using inside procedural loops? (Choose 2)

  A. System.debug('Amount of CPU time (in ms) used so far: ' + Limits.getCpuTime() );

  B. List contacts = [SELECT Id, Salutation, FirstName, LastName, Email FROM Contact WHERE AccountId = :a.Id];

  C. If(o.accountId == a.id)

  D. Update contactList;

  Correct Answer: BD

• Question 22:

  A developer needs to prevent the creation of request records when certain conditions exist in the system. A RequestLogic class exists to checks the conditions. What is the correct implementation?

  A. Trigger RequestTrigger on Request (after insert) { RequestLogic.validateRecords {trigger.new};

  }

  B. Trigger RequestTrigger on Request (before insert) { RequestLogic.validateRecords {trigger.new}; }

  C. Trigger RequestTrigger on Request (before insert) { if (RequestLogic.isvalid{Request}) Request.addError {'Your request cannot be created at this time.'}; }

  D. Trigger RequestTrigger on Request (after insert) { if (RequestLogic.isValid{Request}) Request.addError {'Your request cannot be created at this time.'}; }

  Correct Answer: B

• Question 23:

  Which two automation tools include a graphical designer? Choose 2 answers

  A. Approvals

  B. Flow builder

  C. Process builder

  D. Workflows

  Correct Answer: AB

• Question 24:

  Which two statements are true about Apex code executed in Anonymous Blocks? Choose 2 answers

  A. Successful DML operations are automatically committed

  B. All DML operations are automatically rolled back

  C. The code runs with the permissions of the user specified in the runAs() statement

  D. The code runs with the permissions of the logged user.

  E. The code runs in system mode having access to all objects and fields.

  Correct Answer: AD

• Question 25:

  A developer has javascript code that needs to be called by controller functions in multiple components by extending a new abstract component. Which resource in the abstract component bundle allows the developer to achieve this

  A. Controller.js

  B. Superrender.js

  C. Rendered.js

  D. Helper.js

  Correct Answer: D

• Question 26:

  What is the data type returned by the following SOSL search? {FIND 'Acme*' in name fields returning account,opportunity};

  A. List,List

  B. Map

  C. Map

  D. List>

  Correct Answer: D

• Question 27:

  A developer must create a Lightning component that allows user to input Contact record information to create a Contact record, including a Salary__c custom field. What should the developer use, along with a lightning-record-edit-form, so that Salary__c field functions as a currency input and is only viewable and editable by users that have the correct field level permissions on Salary__c?

  A.

  B.

  C.

  D.

  Correct Answer: A

• Question 28:

  What must the Controller for a Visualforce page utilize to override the Standard Opportunity view button?

  A. The StandardSetController to support related lists for pagination.

  B. The Opportunity StandardController for pre -built functionality.

  C. A callback constructor to reference the StandardController.

  D. A constructor that initializes a private Opportunity variable.

  Correct Answer: B

• Question 29:

  To which primitive data type in Apex is a currency field atomically assigned?

  A. Integer

  B. Decimal

  C. Double

  D. Currency

  Correct Answer: B

• Question 30:

  Account acct = {SELECT Id from Account limit 1}; Given the code above, how can a developer get the type of object from acct?

  A. Call "acct.getsObjectType()"

  B. Call "Account.getSobjectType()"

  C. Call "Account.SobjectType"

  D. Call "acct.SobjectType"

  Correct Answer: A