The Best Salesforce - PDI - Key Platform Developer I (PDI) Concepts

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Salesforce Platform Developer I (PDI) Sample Questions (Q171-Q176):

NEW QUESTION # 171
A company wants to create an employee rating program that allows employees to rate each other. An employees average rating must be displayed on the employee record. Employees must be able to create rating records, but are not allowed to create employee records. Which two actions should a developer take to accomplish this task?

A. Create a master-detail relationship between the Rating and Employee objects.
B. Create a lookup relationship between the Rating and Employee object.
C. Create a roll-up summary field on the Employee and use AVG to calculate the average rating score.
D. Create a trigger on the Rating object than updates a field on the Employee object.

Answer: C

NEW QUESTION # 172
Refer to the following code that runs in an Execute Anonymous block:

A. The transaction will succeed and the first ten thousand records will be committed to the database.
B. In an environment where the full result set is returned, what is a possible outcome of this code?
C. The total number of records processed as a result of DML statements will be exceeded.
D. The total number of DML statements will be exceeded.
E. The total number of records processed as a result of DML statements will be exceeded

Answer: E

NEW QUESTION # 173
A company has a custom object named Warehouse. Each Warehouse record has a distinct record owner, and is related to a parent Account in Salesforce.Which kind of relationship would a developer use to relate the Account to the Warehouse?

A. Master -Detail
B. Lookup
C. One -to -Many
D. Parent -Child

Answer: B

NEW QUESTION # 174
Which statement should a developer avoid using inside procedural loops? (Choose 2)

A. If(o.accountId == a.id)
B. List contacts = [SELECT Id, Salutation, FirstName, LastName, Email FROM Contact WHERE AccountId = :a.Id];
C. Update contactList;
D. System.debug('Amount of CPU time (in ms) used so far: ' + Limits.getCpuTime() );

Answer: B,C

NEW QUESTION # 175
A developer has a Visualforce page and custom controller to save Account records. The developer wants to display any validation rule violations to the user.
How can the developer make sure that validation rule violations are displayed?

A. Include <apex:messages> on the Visualforce page.
B. Add custom controller attributes to display the message.
C. Perform the DML using the database.unsert() method,
D. Use a try/catch with a custom exception class.

Answer: A

Explanation:
* Validation Rule Violations:
* Salesforce automatically throws exceptions for validation rule violations during DML operations.
* <apex:messages>is used to display these errors to the user.
* Why Not Other Options?
* A: Controller attributes alone cannot handle validation messages.
* B: A try/catch block does not address validation rule violations effectively.
* D:Database.upsert()method is not related to validation error handling.
References:Apex Messages:https://developer.salesforce.com/docs/atlas.en-us.pages.meta/pages/pages_compref_messages.htm

NEW QUESTION # 176
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