CRT-450 Salesforce Exam Questions and Free Practice Test

Question 7

A developer creates a method in an Apex class and needs to ensure that errors are handled properly.What would the developer use? (There are three correct answers.)

A. ApexPages.addErrorMessage()

B. A custom exception

C. .addError()

D. Database.handleException()

E. A try/catch construct

Correct Answer:BCE

Question 8

What is the return data type when ApexPages.currentPage().getParameters() is used to retrieve URL parameters from a visualforce controller?

A. Map

B. List

C. Enum

D. String[]

Correct Answer:A

Question 9

How can a developer retrieve all Opportunity record type labels to populate a list collection?Choose 2 answers

A. Obtain describe object results for the Opportunity objct.

B. Write a for loop that extracts values from the Opportunity.RecordType.Name field.

C. Use the global variable $RecordType and extract a list from the map.

D. Write a SOQL for loop that iterates on the RecordType objec

Correct Answer:AD

Question 10

When would a developer use a custom controller instead of a controller extension? Choose 2 answers:

A. When a Visualforce page needs to replace the functionality of a standard controller.

B. When a Visualforce page does not reference a single primary object.

C. When a Visualforce page should not enforce permissions or field-level security.

D. When a Visualforce page needs to add new actions to a standard controlle

Correct Answer:BC

Question 11

When can a developer use a custom Visualforce page in a Force.com application? (Choose 2)

A. To generate a PDF document with application data

B. To create components for dashboards and layouts

C. To deploy components between two organizations

D. To modify the page layout settings for a custom object

Correct Answer:AB

Question 12

Which statement should a developer avoid using inside procedural loops? (Choose 2)

A. System.debug('Amount of CPU time (in ms) used so far: ' + Limits.getCpuTime() );

B. List contacts = [SELECT Id, Salutation, FirstName, LastName, Email FROM Contact WHERE AccountId = :a.Id];

C. If(o.accountId == a.id)

D. Update contactList;

Correct Answer:BD

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