Salesforce Salesforce Certifications CRT-450 Questions & Answers

• Question 391:

  What is a valid way of loading external JavaScript files into a Visualforce page? (Choose 2)

  A. Using an (apex:includeScript)* tag. \>

  B. Using an (apex:define)* tag.

  C. Using a (link)* tag.

  D. Using a (script)* tag.

  Correct Answer: AD

• Question 392:

  A Hierarchy Custom Setting stores a specific URL for each profile in Salesforce. Which statement can a developer use to retrieve the correct URL for the current user'sprofile and display this on a Visualforce Page?

  A. {!$Setup.Url_Settings__C.Instance[Profile.Id].URL__c}

  B. {!$Setup.Url_Settings__C.URL__c}

  C. {!$Setup.Url_Settings__C.[Profile.Id].URL__c}

  D. {!$Setup.Url_Settings__C.[$Profile.Id].URL__c}

  Correct Answer: B

• Question 393:

  How can a developer avoid exceeding governor limits when using Apex Triggers? (Choose 2)

  A. By using a helper class that can be invoked from multiple triggers

  B. By using Maps to hold data from query results

  C. By using the Database class to handle DML transactions

  D. By performing DML transactions on a list of sObjects.

  Correct Answer: BD

• Question 394:

  A developer creates an Apex helper class to handle complex trigger logic. How can the helper class warn users when the trigger exceeds DML governor limits?

  A. By using PageReference.setRedirect() to redirect the user to a custom Visualforce page before the

  B. By using Messaging.sendEmail() to continue toe transaction and send an alert to the user after the number of DML statements is exceeded.

  C. By using AmexMessage.Messages() to display an error message after the number of DML statements is exceeded.

  D. By using Limits.getDMLRows() and then displaying an error message before the number of DML statements is exceeded.

  Correct Answer: D

• Question 395:

  Which action can a developer take to reduce the execution time of the following code? List allaccounts = [select id from account]; list allcontacts = [select id, accountid from contact]; for (account a :allaccounts){ for (contact c:allcontacts){ if(c.accountid = a.id){ //do work } } }

  A. Use a map for allaccounts

  B. Add a group by clause to the contact SOQL

  C. Put the account loop inside the contact loop

  D. Create an apex helper class for the SOQL

  Correct Answer: A

• Question 396:

  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 397:

  Which feature allows a developer to create test records for use in test classes?

  A. Static resources

  B. Documents

  C. Httpcalloutmocks

  D. Webservicetests

  Correct Answer: D

• Question 398:

  Which control statement should a developer use to ensure that a loop body executes at least once?

  A. For(variable : list_or_set){}

  B. While (condition){}

  C. For(init_stmt;exit_cond;increment){}

  D. Do {} while (cond)

  Correct Answer: D

• Question 399:

  Candidates are reviewed by four separate reviewers and their comments and scores which range from 1 (lowest) to 5 (highest) are stored on a review record that is a detail record for a candidate what is the best way to indicate that a combined review score of 15 of better is required to recommend that the candidate come in for an interview?

  A. Use a validation rule on a total score field on the candidate record that prevents a recommended field from being true if the total score is less than 15

  B. Use a workflow rule to calculate the sum of the review scores and send an email to the hiring manager when the total is 15 or better

  C. Use visual workflow to set a recommended field on the candidate whenever the cumulative

  D. Use a rollup summary field to calculates the sum of the review scores, and store this in a total score field on the candidate

  Correct Answer: B

• Question 400:

  Which tool can deploy destructive changes to apex classes in production?

  A. Workbench

  B. Salesforce setup

  C. Change sets

  D. Developer Console

  Correct Answer: A