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Salesforce Plat-Dev-301 Exam Syllabus Topics:

Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

1. Refer to the Aura component below:

A developer receives complaints that the component loads slowly. Which change can the developer implement to make the component perform faster?

A) Change the type of contactInfo to "Map".
B) Move the contents of <c: contactInfo into the componant.
C) Add a change event handler for showContactInfo.
D) Change the default for showContactInfo to "False.

2. A Visualforce page contains an industry select list and displays a table of Accounts that have a matching value in their Industry field.

When a user changes the value in the industry select list, the table of Accounts should be automatically updated to show the Accounts associated with the selected industry, What is the optimal way to implement this?

A) Add an <apex:actionsupport> within the <apex:selectOptions>.
B) Add an <apex:actionFunction> within the <apax:selecList>.
C) Add an <apex:actionFunction> within the <apex:selectOptions>.
D) Add an <apex:actionsupport> within the <apex:selecList>.

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

4. A developer wrote a class named asccuntRisteryManager that relies on field history tracking. The class has a static method called getaccountHistory that Lakes in an Account as a parameter and returns a list of associated accountHistory object records.
The following test fails:

What should be done to make this test pass?

A) Use @isTest (SeeAllData=true] to see historical data from the org and query for Accountdistory records.
B) Use Test. isRunningTest (] in getAccountHistory() to conditionally return fake AccountHistory records.
C) Create Accountdistory records manually in the test setup and write a query to get them.
D) The tact method should he delated since this code cannat be tested

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

Solutions: