SALESFORCE-PD1 Developer Fundamentals Practice Test 3 — 15 Questions

Question 1

An Apex trigger invokes a helper method that performs a DML operation, but the developer wants to establish a rollback point so that prior changes can be reverted if a subsequent error occurs. Which feature should be used?

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

Database.Savepoint sp = Database.setSavepoint();. Database.setSavepoint() creates a savepoint, and Database.rollback() rolls back changes to that savepoint.

Answer

Approval.lock()

Answer

System.createCheckpoint()

Answer

Database.beginTransaction()

Question 2

A developer needs to convert a String variable containing a numeric value into an Integer in Apex. Which method should be used?

Accepted Answer

Integer.valueOf(). Integer.valueOf() converts a String representation of a number into an Integer primitive.

Answer

String.toInteger()

Answer

Convert.toInteger()

Answer

Integer.parse()

Question 3

Which collection type in Apex stores elements as key-value pairs where each key maps to a single value?

Accepted Answer

Map. A Map stores key-value pairs where each unique key maps to a single value.

Answer

Set

Answer

Queue

Answer

List

Question 4

Which TWO types of triggers can be defined in Apex? Choose 2 options.

Accepted Answer

after trigger. Apex supports before triggers and after triggers executed around DML operations.

Answer

instead of trigger

Answer

commit trigger

Answer

validation trigger

Question 5

A developer wants to ensure that a custom Apex REST service method properly handles authentication and executes securely in the context of the calling user. How should the class be defined?

Accepted Answer

global class with sharing. Apex REST services must be global classes, and specifying with sharing ensures sharing rules are respected.

Answer

webservice class without sharing

Answer

public class with sharing

Answer

private class inherited sharing

Question 6

A developer needs to query Task records related to Account records using a parent-to-child relationship. What is the standard child relationship name for Tasks on the Account object?

Accepted Answer

Tasks. The standard child relationship name for Tasks on Account is OpenActivities and ActivityHistories or Tasks depending on the exact context, but Tasks is standard for custom/standard queries using Tasks relationship name.

Answer

AccountTasks

Answer

ActivityHistories

Answer

ChildTasks

Question 7

An Apex trigger needs to execute logic only when a specific custom field (Discount_Percent__c) on an Opportunity changes its value. Which comparison should the developer use?

Accepted Answer

Trigger.new[i].Discount_Percent__c != Trigger.oldMap.get(Trigger.new[i].Id).Discount_Percent__c. Comparing Trigger.new[i].Discount_Percent__c with Trigger.oldMap.get(Trigger.new[i].Id).Discount_Percent__c ensures code runs only when the field value is modified during an update.

Answer

Trigger.isChanged('Discount_Percent__c')

Answer

Trigger.new[i].Discount_Percent__c != Trigger.old[i].Discount_Percent__c

Answer

Trigger.new[i].Is_Modified__c == true

Question 8

Which TWO primitive data types are natively supported in Apex? Choose 2 options.

Accepted Answer

Integer. Integer and Boolean are native primitive data types in Apex, whereas Array and Structure are not standalone primitive types.

Answer

Char

Answer

Structure

Answer

Array

Question 9

Which TWO statements about SOSL (Salesforce Object Search Language) are true? Choose 2 options.

Accepted Answer

SOSL can query text across multiple standard and custom objects in a single query.. SOSL searches across multiple objects and returns lists of sObjects grouped by object type.

Answer

SOSL can only query a single object per statement.

Answer

SOSL queries support complex arithmetic calculations and grouping clauses.

Answer

SOSL queries are executed using the SELECT keyword.

Question 10

Which TWO methods are available on the Database class for performing DML operations with partial success capability? Choose 2 options.

Accepted Answer

Database.update(). Database.insert() and Database.update() accept an allOrNone boolean parameter allowing partial success.

Answer

Database.save()

Answer

Database.commit()

Answer

Database.persist()

Question 11

Which THREE tools or contexts can be used to execute Anonymous Apex code? Choose 3 options.

Accepted Answer

Salesforce CLI (sf apex run). Anonymous Apex can be executed via the Developer Console, Salesforce Extensions for VS Code, and Salesforce CLI (sf apex run).

Answer

Standard Page Layout Editor

Answer

Lightning App Builder

Question 12

Which TWO collection interfaces or classes are provided in Apex? Choose 2 options.

Accepted Answer

Map. List and Map are core collection types in Apex.

Answer

Vector

Answer

Dictionary

Answer

Hashtable

Question 13

Which TWO trigger context variables are available in BEFORE INSERT triggers? Choose 2 options.

Accepted Answer

Trigger.new. Trigger.new and Trigger.newMap are available in Before Insert triggers.

Answer

Trigger.oldMap

Answer

Trigger.old

Answer

Trigger.operationType

Question 14

Which THREE features are enforced when an Apex class is defined with the 'with sharing' keyword? Choose 3 options.

Accepted Answer

Sharing Rules. with sharing enforces organization-wide defaults, role hierarchies, and sharing rules.

Answer

Profiles and Permission Sets

Answer

Field-Level Security

Question 15

Which THREE best practices should a developer follow to avoid governor limits when writing SOQL queries in Apex? Choose 3 options.

Accepted Answer

Query only the specific fields needed rather than using SELECT *.. Best practices include avoiding queries inside loops, using bind variables, and querying only necessary fields.

Answer

Execute a separate SOQL query for every child record individually.

Answer

Always use SELECT FIELDS(ALL) to ensure all data is retrieved.