A developer must create a CreditcardPayment class that provides an implementation of an existing Payment class. Public virtual class Payment { public virtual void makePayment(Decimal amount) { /*implementation*/ } } Which is the correct implementation?

• A.Public class CreditCardPayment implements Payment {
  public virtual void makePayment(Decimal amount) { /*implementation*/ }
  }
• B.Public class CreditcardPayment extends Payment {
  public override void makePayment(Decimal amount) { /*implementation*/ }
  }
• C.Public class CreditCardPayment extends Payment {
  public virtual void makePayment(Decimal amount) { /*implementation*/ }
  }
• D.Public class CreditCardPayment implements Payment {
  public override void makePayment(Decimal amount) { /*Implementation*/ }
  }

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A developer needs to create a custom button for the Account object that, when clicked, will perform a series of calculation and redirect the user to a custom visualforce page.
Which three attributes need to be defined with values in the <apex:page> tag to accomplish this?
Choose 3 answers

• A.extensions
• B.standard Controller
• C.readOnly
• D.renderAs
• E.Action

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A developer created a new trigger that inserts a Task when a new Lead is created. After deploying to production, an outside integration chat reads task records is periodically reporting errors.
Which change should the developer make to ensure the integration is not affected with minimal impact to business logic?

• A.Use a try-catch block after the insert statement.
• B.Use the Database method with all or None set to false
• C.Remove the Apex class from the integration user's profile.
• D.Deactivate the trigger before the integration runs.

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Given the following code snippet, that is part of a custom controller for a Visualforce page:

In which two ways can the try/catch be enclosed to enforce object and field-level permissions and prevent the DML statement from being executed if the current logged-in user does not have the appropriate level of access? Choose 2 answers

• A.Use if (thisContact.Owner = = UserInfo.getuserId ( ) )
• B.Use if (Schema.sObjectType.Contact.isAccessible ( ) )
• C.Use if (Schema, sobjectType, Contact, isUpdatable ( ) )
• D.Use if (Schema , sobjectType. Contact. Field, Is_Active_c. is Updateable ( ) )

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A developer must create a DrawList class that provides capabilities defined in the Sortable and Drawable interfaces. public interface Sortable { void sort(); } public interface Drawable { void draw(); } Which is the correct implementation?

• A.Public class DrawList implements Sortable, Drawable {
  public void sort() { /*implementation*/}
  public void draw() { /*implementation*/}
  }
• B.Public class DrawList extends Sortable, Drawable {
  public void sort() { /*implementation*/}
  public void draw() { /*implementation*/}
  }
• C.Public class DrawList implements Sortable, Implements Drawable {
  public void sort() { /*implementation*/}
  public void draw() { /*implementation*/}
  ]
• D.Public class DrawList extends Sortable, extends Sortable, extends Drawable { public void sort() { /*implementation*/ } public void draw() { /* implementation */}

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