PDI Exam Dumps - Salesforce Developers Questions and Answers

Order of Execution Rules:

Step 1: Original record is loaded from the database.

Step 2: Field-level validations are performed, including maximum field lengths.

Step 3: Old values are overwritten with new record values.

Step 4: JavaScript validation runs in the browser.

Option A: A screen-based flow is ideal for gathering multiple pieces of information from the user interactively. It provides a declarative way to guide the service agent through the process step-by-step.

Not Suitable:

Option B: An approval process is for routing records for approval, not for gathering user input.

Option C: Apex triggers are for automation, not for interactive user input.

Option D: A Lightning Component could work but requires custom development, which is less efficient than using flows.

When troubleshooting batch Apex jobs:

Asynchronous Job Monitoring:

Navigate toSetup > Apex Jobsto view the status of the batch job.

Provides information such as success, errors, and total execution time.

This step is crucial to diagnose whether the issue is with system limits, batch size, or specific records.

Debug Logs:

After identifying the issue in the job monitoring page, use debug logs to pinpoint specific errors or bottlenecks.

B. Check the debug logs for the batch job: Debug logs are a secondary step after checking the job status.

C. Disable and recreate with fewer records: Premature without investigating the root cause.

D. Decrease the batch size: Adjusting batch size is a solution but only after identifying the cause of the timeout.

Option B: UsingSchema.sObjectType.Account.isDeletable()checks if the current user has permission to delete records of theAccountobject. This approach adheres to Salesforce's security model.

Not Suitable:

Option A:accountRec.isDeletable()is not a valid method.

Option C: Incorrect syntax for checking permissions.

Option D:Account.isDeletabledoes not exist.

Why a try/catch block is required:

In Salesforce, DML operations such as insert, update, delete, and upsert can throw exceptions due to issues like validation rule violations, field constraints, or sharing rule restrictions.

Using a try/catch block ensures that these exceptions are caught and handled gracefully, preventing the entire transaction from failing.

How to modify the code:

The update statement in the code can be wrapped in a try/catch block to catch and handle any exceptions that occur. For example:

apex

Copy code

public static void insertAccounts(List theseAccounts) {

try {

for (Account thisAccount : theseAccounts) {

if (thisAccount.website == null) {

thisAccount.website = 'https://www.demo.com';

}

}

update theseAccounts;

} catch (DmlException e) {

System.debug('DML Exception: ' + e.getMessage());

}

}

Why not the other options?

A. Implement the upsert DML statement:

upsert is used to either insert or update records based on an external ID or primary key. It does not inherently handle exceptions.

B. Implement Change Data Capture:

Change Data Capture (CDC) is used for tracking changes to data in real time and is unrelated to handling DML exceptions.

D. Remove null items from the list of Accounts:

While cleaning the input data is a good practice, it does not address the need for exception handling during DML operations.

Developer Sandboxes are ideal for individual developers. They provide the same configuration as production and allow developers to work independently.

Full Sandbox: Used for staging or testing environments, not suitable for individual developer work.

Developer Edition: Not connected to the production org and lacks sandbox functionality.

Partner Developer Edition: Used by ISVs for AppExchange development, not suitable for internal teams.

A: Formula fields are calculated at runtime based on the formula definition and are not stored in the database.

C: Formula fields can reference fields from related objects, allowing cross-object calculations.

Why not other options?

B: Formulas cannot reference themselves; doing so would result in a circular reference error.

D: If a field used in a formula field is deleted, the formula field will break, and Salesforce will prevent deletion until the formula field is updated.

Tooling API:

The Tooling API provides programmatic access to manage tests and other metadata in the org.

It can execute test classes or methods remotely.

Developer Console:

The Developer Console is a built-in Salesforce tool to execute Apex tests, debug logs, and more.

Allows developers to execute tests interactively.

B. Metadata API: Used for managing metadata, not for running tests.

C. Bulk API: Used for data operations, not related to testing.

B: Using partial DML statements (e.g.,Database.insert(list, false)) allows only valid records to be committed while identifying invalid ones, avoiding runtime errors.

D: TheDatabase.Savepointmethod ensures transactional control by allowing rollback to a specific savepoint if an error occurs.

Why not other options?

A: The@ReadOnlyannotation is for read-only operations and would not allow DML operations.

C: TheSystem.Limitclass helps monitor limits but does not directly control transaction behavior.

A master-detail relationship fromEngineering_Support__ctoOpportunityallows multiple childEngineering_Support__crecords to be associated with a single parentOpportunity. It also enables roll-up summary fields to aggregate data from the child records onto the parentOpportunity.