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Salesforce CRT-450 Exam Practice Questions (P. 2)

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Question #11
A developer working on a time management application wants to make total hours for each timecard available to application users. A timecard entry has a Master-
Detail relationship to a timecard.
Which approach should the developer use to accomplish this declaratively?
  1. A
    A Visualforce page that calculates the total number of hours for a timecard and displays it on the page
  2. B
    A Roll-Up Summary field on the Timecard Object that calculates the total hours from timecard entries for that timecard
  3. C
    A Process Builder process that updates a field on the timecard when a timecard entry is created
  4. D
    An Apex trigger that uses an Aggregate Query to calculate the hours for a given timecard and stores it in a custom field

Correct Answer:
B

Question #12
A developer encounters APEX heap limit errors in a trigger.
Which two methods should the developer use to avoid this error? (Choose two.)
  1. A
    Use the transient keyword when declaring variables.
  2. B
    Query and store fields from the related object in a collection when updating related objects.
  3. C
    Remove or set collections to null after use.
  4. D
    Use SOQL for loops instead of assigning large queries results to a single collection and looping through the collection.

Correct Answer:
AD

Question #13
Which approach should be used to provide test data for a test class?
  1. A
    Query for existing records in the database.
  2. B
    Execute anonymous code blocks that create data.
  3. C
    Use a test data factory class to create test data.
  4. D
    Access data in @TestVisible class variables.

Correct Answer:
C

Question #14
Which approach should a developer take to automatically add a `Maintenance Plan` to each Opportunity that includes an `Annual Subscription` when an opportunity is closed?
  1. A
    Build a OpportunityLineItem trigger that adds a PriceBookEntry record.
  2. B
    Build an OpportunityLineItem trigger to add an OpportunityLineItem record.
  3. C
    Build an Opportunity trigger that adds a PriceBookEntry record.
  4. D
    Build an Opportunity trigger that adds an OpportunityLineItem record.

Correct Answer:
D

Question #15
Which two statements are true about using the @testSetup annotation in an Apex test class? (Choose two.)
  1. A
    The @testSetup annotation cannot be used when the @isTest(SeeAllData=True) annotation is used.
  2. B
    Test data is inserted once for all test methods in a class.
  3. C
    Records created in the @testSetup method cannot be updates in individual test methods.
  4. D
    The @testSetup method is automatically executed before each test method in the test class is executed.

Correct Answer:
AD

Question #16
What is the requirement for a class to be used as a custom Visualforce controller?
  1. A
    Any top-level Apex class that has a constructor that returns a PageReference
  2. B
    Any top-level Apex class that extends a PageReference
  3. C
    Any top-level Apex class that has a default, no-argument constructor
  4. D
    Any top-level Apex class that implements the controller interface

Correct Answer:
D

Question #17
A Visualforce page is required for displaying and editing Case records that includes both standard and custom functionality defined in an Apex class called myControllerExtension.
The Visualforce page should include which <apex:page> attribute(s) to correctly implement controller functionality?
  1. A
    controller=ג€Caseג€ and extensions=ג€myControllerExtensionג€
  2. B
    extensions=ג€myControllerExtensionג€
  3. C
    controller=ג€myControllerExtensionג€
  4. D
    standardController=ג€Caseג€ and extensions=ג€myControllerExtensionג€

Correct Answer:
D

Question #18
A newly hired developer discovers that there are multiple triggers on the case object.
What should the developer consider when working with triggers?
  1. A
    Developers must dictate the order of trigger execution.
  2. B
    Trigger execution order is based on creation date and time.
  3. C
    Unit tests must specify the trigger being tested.
  4. D
    Trigger execution order is not guaranteed for the same sObject.

Correct Answer:
D

Question #19
How should a developer prevent a recursive trigger?
  1. A
    Use a ג€one trigger per objectג€ pattern.
  2. B
    Use a static Boolean variable.
  3. C
    Use a trigger handler.
  4. D
    Use a private Boolean variable.

Correct Answer:
B

Question #20
Which three options can be accomplished with formula fields? (Choose three.)
  1. A
    Generate a link using the HYPERLINK function to a specific record.
  2. B
    Display the previous value for a field using the PRIORVALUE function.
  3. C
    Determine if a datetime field value has passed using the NOW function.
  4. D
    Return and display a field value from another object using the VLOOKUP function.
  5. E
    Determine which of three different images to display using the IF function.

Correct Answer:
ACE

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