Platform Developer I Certification for Winter '24 Solutions

Today, We are going to answer the  Platform Developer I Certification Maintenance Winter '24 questions.

Unit 1: Maintain Your Platform Developer I Certification for Winter ’24

1. Which SOQL keywords can be used to respect the object permissions of the running user for a query in Apex code?

Ans. WITH USER_MODE

2. Where can an error message be displayed by adding the Custom Error Message element to a flow?
Ans. Either A or B

3. Why are the lwc:if, lwc:elseif, and lwc:else conditional directives more efficient than the legacy if:true and if:else directives?
Ans. Property getters are accesses only once per instance of he directive.

4. Which of the following can be used to iterate through lists or sets in a for loop?

Ans. Iterable variable

5. Which Apex feature can be used to customize the behavior of the List.sort() method?

Ans. Comparator interface

Unit 2: Get Hands-on with Bind Variables in a SOQL Query

1. Create a new Playground or use the previous one. 

2. Open Developer Console and create a new class named as QueryContact. Copy the below code and paste it into the class and Save it.

	public class QueryContact {
	public static Id getContactID(String lastName, String title) {
	try {
	Contact myContact = Database.query(
	'SELECT ID FROM Contact WHERE lastName = :lastName AND title = :title LIMIT 1'
	);
	return myContact.Id;
	} catch (Exception ex) {
	return null;
	}
	}
	public static Id getContactIDWithBinds(Map<String, Object> bindVars) {
	String queryString =
	'SELECT ID FROM Contact WHERE lastName = :lastName AND title = :title LIMIT 1';
	List<Contact> Contacts = Database.queryWithBinds(
	queryString,
	bindVars,
	AccessLevel.USER_MODE
	);
	return Contacts[0].Id;
	}
	}

view raw QueryContact.apxc hosted with ❤ by GitHub

Hurrey!! You have successfully completed the Maintenance. That's all for today. We will come up with more solutions that will help you understand Salesforce faster. 

Note: To keep your certification, complete the  Platform Developer I Certification Maintenance (Winter '24) Module