What is the correct order of execution for Visualforce Page "postback" requests (when user interaction requires a page update)

• A.1: Evaluate expressions and method calls for the main page and custom components
  2: Decode View State
  3v Upon successful completion, Update data and redirect user/update view state
  4: Upon successful completion, Evaluate the action that triggered the postback
  5: HTML sent to browser
• B.1: Decode View State
  2: Evaluate expressions and method calls for the main page and custom components
  3: Upon successful completion, Evaluate the action that triggered the postback
  4: Upon successful completion, Update data and redirect user/update view state
  5: HTML sent to browser
• C.1: Decode View State
  2: Evaluate expressions and method calls for the main page and custom components
  3: Upon successful completion, Update data and redirect user/update view state
  4: Upon successful completion, Evaluate the action that triggered the postback
  5: HTML sent to browser

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A developer is working with existing functionality that tracks how many times a stage has changed for an Opportunity. When the opportunity's stage is changed, a workflow rule is fired to increase the value of a filed by one. The developer wrote an after trigger to create a child record when the field changes from 4 to 5.
A user changes the stage of an Opportunities and manually sets the count field to 4. The count field updates to
5, but the child record is not created.
What is the reason this is happening?

• A.Trigger.old does not contain the updated value of the count field.
• B.After triggers are not fired after field updates.
• C.Trigger. new does not change after a field update.
• D.After triggers fire before workflow rules.

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users complain that a page Is very slow to respond. Upon investigation, the query below Is found to perform slowly.
SELECT id, Name FROM Contact WHERE CustomField_c null;
Which two actions can a developer take to improve performance?
Choose 2 answers

• A.Make the CustomFleld__c field an External ID.
• B.Make the field CustomReW__c required because Salesforce field Indexes do not Include nulls.
• C.Add a UMir dause to the query to reduce the number of records returned.
• D.Contact Salesforce customer support to create a custom index to include null values

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Which technique can run custom logic when a Lightning web component is loaded?

• A.Use an <aura:handler> init event to call a function.
• B.Use the randersd loack { } method.
• C.Call 52. engqueusiction and pass in the method to call.
• D.Use the connectedCallback { } method.

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A developer created a Lightning web component that uses a lightning-record-edit-form to collect information about Leads. Users complain that they only see one error message at a time about their input when trying to save a Lead record.
What is the recommended approach to perform validations on more than one field, and display multiple error messages simultaneously with minimal JavaScript intervention?

• A.Try/catch/finally block
• B.External JavaScript library
• C.Validation rules
• D.Apex trigger

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