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Salesforce PDI Exam Overview:

Certification Vendor:	Salesforce
Exam Name:	Salesforce Platform Developer I (PDI)
Exam Number:	PDI
Certificate Validity Period:	Lifetime (with annual maintenance via Trailhead)
Related Certifications:	Salesforce Certified Platform Developer II Salesforce Certified Administrator
Exam Duration:	105 minutes
Exam Format:	Multiple Choice, Scenario-based questions, Multiple Select
Real Exam Qty:	60-65
Exam Price:	$200 USD
Available Languages:	English, Japanese, Spanish, Portuguese
Passing Score:	68%
Recommended Training:	Salesforce Official Exam Guide Trailhead Learning Path
Exam Registration:	Official Registration
Sample Questions:	Salesforce PDI Sample Questions
Exam Way:	Online proctored or onsite at authorized testing centers
Pre Condition:	No mandatory prerequisites; practical experience with Apex, LWC and Salesforce platform recommended
Official Syllabus URL:	https://trailhead.salesforce.com/credentials/platform-developer-i

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Exam Salesforce PDI Book, PDI Exams Collection

Many ambitious IT professionals want to make further improvements in the IT industry and be closer from the IT peak. They would choose this difficult Salesforce certification PDI exam to get certification and gain recognition in IT area. Salesforce PDI is very difficult and passing rate is relatively low. But enrolling in the Salesforce Certification PDI Exam is a wise choice, because in today's competitive IT industry, we should constantly upgrade ourselves. However, you can choose many ways to help you pass the exam.

To become a Salesforce PDI-certified developer, candidates need to pass a 60-question multiple-choice exam that lasts for 105 minutes. PDI Exam covers a broad range of topics, including data modeling, Apex programming, Visualforce development, Salesforce Lightning, and security. Candidates must achieve a passing score of 68% or higher to obtain the certification.

Salesforce Platform Developer I (PDI) Sample Questions (Q51-Q56):

NEW QUESTION # 51
A developer needs to create a baseline set of data (Accounts, Contacts, Products, Assets) for an entire suite of Apex tests allowing them to test isolated requirements for various types of Salesforce cases.
Which approach can efficiently generate the required data for each unit test?

A. Add @IsTest (seeAllData=true) at the start of the unit test class.
B. Create test data before Test .startTest() in the unit test.
C. Create a mock using the HttpcalloutMock interface.
D. Use @TestSetup with a void method.

Answer: D

Explanation:
Why@TestSetup?
The@TestSetupannotation creates a baseline set of test data once per test class.
Test methods reuse this data, avoiding the need to recreate it repeatedly, which improves efficiency.
Why Not Other Options?
A: HttpCalloutMock is used for mocking callouts, not for creating test data.
C: UsingseeAllData=trueis discouraged because it relies on org data, violating test isolation principles.
D: While creating data inTest.startTest()works, it is less efficient than@TestSetupfor shared data.
References:Test Setup Methods:https://developer.salesforce.com/docs/atlas.en-us.apexcode.meta/apexcode
/apex_testing_testsetup.htm

NEW QUESTION # 52
Assuming that 'name; is a String obtained by an <apex:inputText> tag on a Visualforce page.
Which two SOQL queries performed are safe from SOQL injections? Choose 2 answers

A. String query = '%' + name + '%';
List<Account> results = [SELECT Id FROM Account WHERE Name LIKE :query];
B. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' +
String.escapeSingleQuotes(name) + '%\'';
List<Account> results= Database.query(query);
C. String query ='SELECT Id FROM Account WHERE Name LIKE \''%' + name.noQuotes() + '%\''; List<Account> results = Database.query(query);
D. String query = 'SELECT Id FROM Account WHERE Name LIKE \''%' + name + '%\''; List<Account> results = Database.query(query);

Answer: A,B

NEW QUESTION # 53
A development team wants to use a deployment script to automatically deploy to a sandbox during their development cycles.
Which two tools can they use to run a script that deploys to a sandbox?
Choose 2 answers

A. Developer Console
B. Change Sets
C. Ant Migration Tool
D. SFDX CLI

Answer: C,D

NEW QUESTION # 54
Refer to the following code that runs in an Execute Anonymous block:

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

Answer: D

NEW QUESTION # 55
What is the value of the Trigger.old context variable in a before insert trigger?

A. A list of newly created sObjects without IDs
B. null
C. Undefined
D. An empty list of sObjects

Answer: B

Explanation:
Trigger.old in a before insert trigger:
TheTrigger.oldcontext variable contains the old version of the records being processed in the trigger.
In abefore inserttrigger, the records being processed are new and have no prior state in the database, soTrigger.
oldisnull.
This behavior is specific to insert triggers because there is no "old" record to reference before the record is created.
Why is it null?
The Trigger.old variable is only populated for triggers that handle updates or deletions (e.g., before update, after update, before delete, after delete). For insert operations, no previous state of the record exists.
Why not the other options?
A: An empty list of sObjects:
This is incorrect because Trigger.old is not initialized as an empty list for insert triggers-it is simply null.
B: Undefined:
Trigger.old is defined in the trigger context, but it is null for insert operations. Undefined is not a valid Apex state.
D: A list of newly created sObjects without IDs:
This describes Trigger.new in abefore inserttrigger, not Trigger.old. Trigger.new contains the new records being inserted.
References:
Apex Triggers Documentation
Trigger Context Variables

NEW QUESTION # 56
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