A Visualforce page loads slowly due to the large amount of data it displays. Which strategy can a developer use to improve the performance?

• A.use Javascript to move data processing to the browser instead of the controller.
• B.use lazy loading to load the data on demand, instead of in the controller's constructor.
• C.Use the transient keyword for the List variables used in the custom controller.
• D.use an <apex:actionPoller> in the page to load all of the data asynchronously.

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Exhibit:

A company has the Lightning Component above that allows users to dick a button to save their changes and redirects them to a different page. Currently, when the user hits the Save button the records are getting saved, but they are not redirected.
Which three techniques can a developer use to debug the JavaScript? Choose 3 answers

• A.Use Developer Console to view checkpoints.
• B.Enable Debug Mode for Lightning components for the user.
• C.Use the browser's dev tools to debug the JavaScript.
• D.Use consde.log() messages in the JavaScript.
• E.Use Developer Console to view the debug log.

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Where in a query can you use Geolocation and Distance? (Choose two.)

• A.Select clause
• B.Group By clause
• C.Filter clause
• D.Order By clause

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A developer is asked to update data in an org based on new business rules. The new rules state that Accounts with the type set to 'Customer' should have a status of 'Active', and Accounts with the type set to 'Prospect' should have a status of 'Pending'. No other changes to data should be made.
Which code block will accurately meet the business requirements?
Map<String, String> statusMap = new Map<String, String>{'Customer'=>'Active',

• A.'Prospect'=>'Pending'}
  List<Account> accountUpdates = new List<Account>();
  for ( Account a : [SELECT Id, Type FROM Account WHERE Status IN
  :statusMap.keySet()]){
  a.Status = statusMap.get(a.Type);
  accountUpdates.add(a);
  }
  update accountUpdates;
  List<Account> accountUpdates = new List<Account>();
• B.for ( Account a : [SELECT Id, Type FROM Account]){
  if ( String.isNotBlank(a.Type) && a.Type == 'Customer' ){
  a.Status = 'Active';
  }
  if ( String.isNotBlank(a.Type) && a.Type == 'Prospect' ){
  a.Status = 'Pending';
  }
  accountUpdates.add(a);
  }
  update accountUpdades;
  List<Account> accountUpdates = new List<Account>();
• C.'Prospect'=>'Pending'}
  List<Account> accountUpdates = new List<Account>();
  for ( Account a : [SELECT Id, Type FROM Account]){
  if ( statusMap.containsKey(a.Type) ) {
  a.Status = a.Type == 'Customer' ? 'Active' : 'Pending';
  }
  accountUpdates.add(a);
  }
  update accountUpdates;
  Map<String, String> statusMap = new Map<String, String>{'Customer'=>'Active',
• D.for ( Account a : [SELECT Id, Type FROM Account]){
  a.Status = a.Type == 'Customer' ? 'Active' : 'Pending';
  accountUpdates.add(a);
  }
  update accountUpdates;

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A developer has created the following trigger: trigger ProcessDoNotCall on Contact (after update) { List<Contact> lstCon = [SELECT Id, DoNotCall, Department FROM Contact WHERE Department = 'HR' AND Id IN :Trigger.new]; for(Contact c : lstCon) c.DoNotCall= true; update lstCon; } The developer executes the following code anonymously in the Developer Console. Assume that the record exists in Salesforce.
Contact con = new Contact(Id='003oOOOOOOVHXOm',Department = 'HR') update con; Which behavior will the developer observe?

• A.The code will throw an exception, saying that the record cannot be updated in an After Update trigger.
• B.The contact record will be saved and the contact record's DoNotCall field will be set to true.
• C.The code will throw an exception because the maximum trigger depth has been exceeded.
• D.The code will throw an exception in Anonymous Apex, indicating that the Id field is read-only.

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