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Salesforce Certified Platform Developer II - Multiple Choice Sample Questions:

1. Refer to the markup below:

A Lightning web component displays the Account name and two custom fields out of 275 that exist on the abject. The custom fields are correctly declared and populated. However, the developer receives complaints that the component performs slowly. What can the developer do to improve the performance?

A) Replace layout-type =''1" with fields=(fields}.
B) Add cache="true" to the component.
C) Replace Layout-type =''Full1" with Layout-type="Partial".
D) Add density="compat" to the component.

2. Consider the Apex class below that defines a RemoteAction used on 2 Visualforce search page.

Which code snippet will assert that the remote action returned the correct Account? A)

B)

C)

D)

A) Option A
B) Option C
C) Option D
D) Option B

3. Universal Containers uses a custom Lightning page to provide a mechanism to perform a step-by-step wizard search for Accounts. One of the steps in the wizard is to allow the user to input text into a text field, ERF Number_c, that is then used in a query to find matching Accounts.

Which step should be taken to resolve the issue?

A) Mark the ERP_Number__ c field as required.
B) Mark the ERP_Numker = field as an external ID.
C) Perform the SOQL query as part of a for loop.
D) Move the SO0L query to within an asynchronous process.

4. There are user complaints about slow render times of a custom data table within a Visualforce page that loads thousands of Account records at once.
What can a developer do to help alleviate such issues?

A) Use the transient keyword in the Apex code when querying the Account records.
B) Upload a third-party data table library as a static resource.
C) Use JavaScript remoting to query the accounts.
D) Use the standard Account List controller and implement pagination.

5. A developer implemented a custom data table in a Lightning web component with filter functionality. However, users are submitting support tickets about long load times when the filters are changed. The component uses an Apex method that is called to query for records based on the selected filters.
What should the developer do to improve performance of the component?

A) Use setstoraclel() in the Apex method to store the response In the client-side cache.
B) Return all records into a list when the component is created and filter the array In JavaScript.
C) Use SOSL to query the records on filter change.
D) Use a selective SOQL query with a custom Index.

Solutions: