Salesforce Salesforce Certifications DEX-450 Questions & Answers

• Question 351:

  custom picklist field, Food_Preference__c, exist on a custom object. The picklist contains the following options: 'Vegan','Kosher','No Preference'. The developer must ensure a value is populated every time a record is created or updated. What is the most efficient way to ensure a value is selected every time a record is saved?

  A. Set "Use the first value in the list as the default value" as True.

  B. Set a validation rule to enforce a value is selected.

  C. Mark the field as Required on the field definition.

  D. Mark the field as Required on the object's page layout.

  Correct Answer: C

• Question 352:

  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?

  A. 0

  B. 1

  C. 150

  D. 100

  Correct Answer: A

• Question 353:

  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

  Correct Answer: C

• Question 354:

  A developer created a Visualforce page with a custom controller to show a list of accounts. The page uses the component, with a variable called "selection", to show the valid values for Account.Type. The page uses an component to display the list of accounts, where the iteration variable is "acct". The developer wants to ensure that when a user selects a type on the component, only accounts with that type are shown on the page. What should the developer do to accomplish this?

  A. Use the onChange event to update the list of accounts in the controller when the value changes, and

  then re-render the pageBlockTable.

  B. Create multiple lists in the controller that represent the relevant accounts for each account type when the page loads, then reference the correct one dynamically on the pageBlockTable.

  C. Add the Rendered={!Acct.type==selection} attribute to the pageBlockTable component

  D. Create a component for each option and use a variable with hide parameter on the element.

  Correct Answer: A

• Question 355:

  What can used to delete components from production?

  A. A change set deployment with the delete option checked

  B. An ant migration tool deployment with destructivechanges xml file and the components to delete in the package .xml file

  C. A change set deployment with a destructivechanges XML file

  D. An ant migration tool deployment with a destructivechanges XML file and an empty package .xml file

  Correct Answer: D

• Question 356:

  Which option would a developer use to display the Accounts created in the current week and the number of related Contacts using a debug statement in Apex?

  A. For(Account acc: [SELECT Id, Name,(SELECT Id, Name FROM Contacts) FROM Account WHERE CreatedDate = THIS_WEEK]) { List cons = acc.Contacts; System.debug(acc.Name + ` has ' + cons.size() + `Contacts'; }

  B. For(Account acc: [SELECT Id, Name, (SELECT Id, Name FROM Contacts) FROM Account WHERE CreatedDate = CURRENT_WEEK]){ List cons = acc.Contacts; System.debug(acc.Name + ` has ` + cons.size() + `Contacts'); }

  C. For(Account acc:[SELECT Id, Name, Account.Contacts FROM Account WHERE CreatedDate = CURRENT_WEEK]) { List cons = acc.Account.Contacts; System.debug(acc.Name + ` has ` + cons.size() + `Contacts'); }

  D. For(Account acc: [SELECT Id, Name, Account.Contacts FROM Account WHERE CreatedDate = THIS_WEEK]){ List cons = acc.Account.Contacts; System.debug(acc.Name + ` has ` + cons.size() + `Contacts' }

  Correct Answer: A

• Question 357:

  The Review_c object have a lookup relationship to the job_Application_c object. The job_Application_c object has a master detail relationship up to the position_c object. The relationship is based on the auto populated defaults?

  What is the recommended way to display field data from the related Review _C records a Visualforce page for a single Position_c record? Select one of the following:

  A. Utilize the Standard Controller for Position_c and cross-object Formula Fields on the Job_Application_c object to display Review_c data.

  B. Utilize the Standard Controller for Position_c and a Controller Extension to query for Review_c data.

  C. Utilize the Standard Controller for Position_c and expression syntax in the Page to display related Review_c through the Job_Applicacion_c inject.

  D. Utilize the Standard Controller for Position_c and cross-object Formula Fields on the Review_c object to display Review_c data.

  Correct Answer: B

• Question 358:

  Which statement is true about developing in a multi-tenant environment?

  A. Governor limits prevent apex from impactiong the performance of multiple tenants on the same instance

  B. Apex sharing controls access to records fomr multiple tenants on the same instance

  C. Global apex classes can be referenced from multiple tenants on the same instance

  D. Org-level data security controls which users can see data from multiple tenants on the same instance

  Correct Answer: A

• Question 359:

  A company would like to send an offer letter to a candidate, have the candidate sign it electronically, and then send the letter back.What can a developer do to accomplish this?

  A. Create a visual workflow that will capture the candidate's signature electronically

  B. Develop a Process Builder that will send the offer letter and allow the candidate to sign it electronically.

  C. Install a managed package that will allow the candidate to sign documents electronically

  D. Create an assignment rule that will assign the offer letter to the candidate

  Correct Answer: C

• Question 360:

  The values 'High', 'Medium', and 'Low' are Identified as common values for multiple picklist across different object. What is an approach a developer can take to streamline maintenance of the picklist and their values, while also restricting the values to the ones mentioned above?

  A. Create the Picklist on each object and use a Global Picklist Value Set containing the Values.

  B. Create the Picklist on each object as a required field and select "Display values alphabeticaly, not in the order entered".

  C. Create the Picklist on each object and select "Restrict picklist to the values defined in the value set".

  D. Create the Picklist on each and add a validation rule to ensure data integrity.

  Correct Answer: A