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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

1. What are three reasons that a developer should write Jest tests for Lightning web components?
Choose 3 answers

A) To test a component's non-public properties.
B) To verify that events fire when expected
C) To test how multiple components work together
D) To verify the DOM output of a component
E) To test basic user interaction

2. A developer is building a Lightning web component that searches
for Contacts. The component must communicate the search
results to other unrelated Lightning web components, that are in
different DOM trees, when the search completes.
What should the developer do to implement the communication?

A) Publish an event on an event channel.
B) Fire an application event.
C) Publish a message on a message channel.
D) Fire a custom component event.

3. A developer created the following test method:

The developer org has five accounts where the name starts with "Test". The developer executes this test in the Developer Console. After the test code runs, which statement is true?

A) There will be five accounts where the name starts with "Test".
B) There will be no accounts where the name starts with "Test".
C) There will be six accounts where the name starts with "Test".
D) The test will fail.

4. A page throws an 'Attempt to dereference a null object' error for a Contact.
What change in the controller will fix the error?

A) Change the getter's signature to be static Contact.
B) Declare a static final Contact at the top of the controller.
C) Use a condition in the getter to return a new Contact if it is null.G Change the setter's signature to return a Contact.

5. When the code is executed, the callout is unsuccessful and the following error appears within the Developer Console:
System.CalloutException: Unauthorized endpoint
Which recommended approach should the developer implement
to resolve the callout exception?

A) Change the access modifier for ERPCatalog from public to global.
B) Use the SetHeader() method to specify Basic Authentication,
C) Annotate the getkRFCatalogContents method with @Future (Callout-true),
D) Create a remote site setting configuration that includes the endpoint.

Solutions: