Developer Fundamentals

What is the maximum number of SOQL queries that can be issued in a single synchronous Apex transaction?

A developer needs to retrieve Account records along with their associated Contacts in a single query. Which query syntax is correct?

A developer needs to ensure that an Apex class respects organization-wide defaults, role hierarchies, and sharing rules when querying custom objects. Which keyword should be added to the class definition?

An enterprise application requires Apex code to check whether the current user has read access to a specific custom field before displaying it in a custom Lightning Web Component. What is the most appropriate class to use?

A developer writes an Apex method that executes a SOQL query using user-supplied search parameters. How can the developer protect against SOQL injection vulnerabilities?

Which Apex data type should a developer use to represent a precise geographic location with latitude and longitude coordinates?

An Apex trigger needs to query related Account records for a list of newly inserted Contact records. What is the most robust way to handle the relationship query in SOQL to avoid governor limits?

A developer needs to store a collection of unique customer email addresses in Apex and check for existence efficiently. Which collection type should the developer use?

Which component of the MVC design pattern in Salesforce Lightning Web Components (LWC) represents the data model and business logic layer?

A developer is writing code that processes untrusted data and wants to automatically strip fields and relationships that the current user cannot access, without throwing an exception. Which feature should be used?

A developer needs to find all records across multiple objects (Contact, Lead, and Account) that contain the exact phrase 'Acme Corp'. Which feature should be used?

Which type of Apex trigger context variable returns a list of new versions of the sObject records?

An Apex trigger processes a list of Case records. The developer wants to group the cases by their AccountId. Which data structure is best suited for this grouping?

A developer writes an Apex method with the 'inherited sharing' keyword. What is the behavior of this class when invoked from a class declared with 'with sharing'?

A developer needs to convert a JSON string representing a list of Account objects into an actual Apex List of Accounts. Which method should be used?

Which collection method is used to add all elements from one Set into another Set in Apex?

What is the correct way to declare a constant variable in Apex?

Which method is used to get the number of elements in an Apex List?

An Apex trigger needs to prevent duplicate records from being inserted based on a custom external ID field. Which approach should the developer take to optimize query performance and respect governor limits?

A developer needs to query all Contact records, including those that have been moved to the Recycle Bin. Which SOQL keyword should be used?

A developer is writing a SOQL query to find accounts where the billing country starts with 'United'. Which operator should be used?

A developer needs to implement a custom logging framework. Which Apex data type should be used to represent a variable that can store any primitive value, sObject, or collection dynamically?

An application has complex business logic where an Apex class called from a trigger needs to know whether it was invoked from an insert or update trigger context. How can the developer determine this?

A developer needs to execute a dynamic SOQL query where the object name and fields are determined at runtime. Which method should be used?

A developer writes a SOQL query to aggregate total opportunity amounts grouped by stage name. Which SOQL clause is required?

Which tool or feature in Salesforce Developer Console allows a developer to inspect debug logs and filter them by category and level?

What is the correct file extension for an Apex class created in Salesforce DX?

Which SOQL aggregate function should a developer use to count the exact number of rows returned by a query without retrieving the records into memory?

A developer is writing a batch Apex class. During the execute method, a record fails validation. The developer wants to ensure that successfully processed records in the same batch are committed while failing records are logged without aborting the entire batch. How should the DML be performed?

A developer needs to retrieve 10 Account records starting from the 21st record to implement pagination in a custom component. Which SOQL clause should be used?

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?

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

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

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

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?

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?

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?

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

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

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

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

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

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

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

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

Which TWO statements about Apex variables and initialization are true? Choose 2 options.

Which TWO options represent valid ways to instantiate and populate a Set of Strings in Apex? Choose 2 options.

Which TWO statements about SOQL relationship queries are true? Choose 2 options.

Which THREE operations can cause an automatic roll back of an entire Apex transaction? Choose 3 options.

Which TWO methods are used to inspect sObject field metadata dynamically in Apex? Choose 2 options.

Which THREE design patterns or tools help ensure secure coding practices regarding CRUD and FLS in Apex? Choose 3 options.

A developer needs to store a collection of Account IDs where duplicates are automatically prevented and lookups are extremely fast. Which collection type should the developer use?

An Apex trigger needs to check whether the current user has read access to the 'AnnualRevenue' field on the Account object before performing a calculation. Which method should the developer use?

A developer writes an Apex method that executes a SOQL query inside a for-loop over a list of 200 Account records. Which governor limit is most likely to be immediately breached?

Which SOQL query utilizes the correct syntax to retrieve child Contact records from a parent Account record using the standard relationship name?

An application uses a SOSL search to find records across multiple objects. Which return type must be used to capture the results in Apex?

A developer needs to run an Apex class in system mode, ignoring user-level object and field-level permissions, but enforcing organization-wide sharing rules. How should the class be declared?

What is the primary purpose of the Model-View-Controller (MVC) design pattern implementation in Lightning Web Components (LWC)?

A developer needs to update 5,000 Account records and wants to ensure that if any single record fails validation, none of the records are committed to the database. Which method should be used?

Which primitive data type in Apex can represent a specific point in time, including both date and time values?

A developer is writing a trigger on the Contact object that needs to reference old field values during an update operation. In which trigger context variable are these previous values stored?

What is the maximum number of SOQL queries that can be issued in a single synchronous Apex transaction?

A developer needs to dynamically instantiate an sObject type based on a string variable representing the object name (e.g., 'Account'). Which method should be used?

An Apex transaction performs a DML operation, followed by a callout to an external REST API, followed by another DML operation. What exception will Salesforce throw?

A developer writes a SOQL query to fetch Account records and wants to bind a list of strings called 'targetNames' as filter criteria. Which syntax is correct?

A developer needs to iterate over a map of Account IDs to Account sObjects and perform processing on each value. Which loop construct is valid Apex?

Which Salesforce data model relationship type allows two objects to have a many-to-many relationship through a junction object?

Which collection type stores elements as key-value pairs in Apex?

A developer wants to ensure that a custom Apex controller method can be invoked securely from a Lightning Web Component. Which annotation must be applied to the method?

A developer needs to determine if the current user has delete permissions on the Opportunity object in Apex before calling a deletion method. Which method should be used?

A developer needs to query all Contact records, including those that have been deleted from the database via the Recycle Bin. Which SOQL clause must be added?

An Apex trigger executes during a bulk insert of 300 records. To adhere to best practices regarding governor limits and bulkification, how should SOQL queries be written?

Which Apex data type is best suited for storing monetary amounts with high precision?

A developer needs to convert a string variable containing an alphanumeric Salesforce ID into an ID primitive data type. Which approach is valid in Apex?

What is the return type of a SOQL query that returns a single aggregate result, such as SELECT COUNT() FROM Account?

An Apex trigger needs to prevent records from being saved if a specific validation condition fails. How should the developer reject the DML operation on a specific record?

A developer writes a SOQL query using the FORMAT() keyword. What is the purpose of this keyword?

An application has a requirement to query records owned by subordinate users in the role hierarchy using Apex. Which SOQL feature supports this capability?

Which TWO statements are true regarding the behavior of Apex triggers and context variables? Choose 2 answers.

Which TWO collections are valid in Apex and maintain the insertion order of their elements? Choose 2 answers.

Which THREE actions can a developer take to optimize SOSL query performance and adhere to best practices? Choose 3 answers.

Which THREE operations will cause an immediate transaction rollback or DML failure when utilizing standard DML statements in Apex? Choose 3 answers.

Which TWO tools or features are part of the Model-View-Controller (MVC) architecture implementation in Salesforce declarative and programmatic development? Choose 2 answers.

Which TWO data types can be used as keys in an Apex Map? Choose 2 answers.

Which THREE statements are accurate regarding Apex transaction control and database savepoints? Choose 3 answers.

Which THREE best practices should a developer follow when implementing CRUD and FLS checks in Apex? Choose 3 answers.

Which TWO features are characteristics of SOSL (Salesforce Object Search Language) queries? Choose 2 answers.

Which TWO statements are true regarding the Salesforce security model and Apex execution context? Choose 2 answers.

Which THREE techniques help prevent hitting governor limits when writing SOQL queries in Apex? Choose 3 answers.

Which THREE factors can cause an Apex CPU time limit exception in a synchronous transaction? Choose 3 answers.

A developer needs to write an Apex trigger that fires before an Account is inserted and accesses the value of the custom field 'Rating__c'. Which collection type is best suited to iterate over the incoming records in the trigger context variable?

A developer has written an Apex method that executes a SOQL query to retrieve all Contacts associated with an Account. The method needs to be invoked securely without bypassing the user's organization-wide defaults and sharing settings. How should the developer execute this query?

An Apex trigger executes a query inside a for-loop to fetch related child records for every parent Account in Trigger.new. The developer notices that when a data load of 200 accounts occurs, the governor limit for total SOQL queries issued is exceeded. How should the developer refactor the code?

A developer wants to define a constant value in an Apex class that can be accessed globally without instantiating the class. Which combination of keywords should be used?

A developer needs to ensure that a custom Apex controller safely checks whether the current user has read access to the 'Salary__c' field on the 'Employee__c' object before displaying it in a Lightning Web Component. Which method should the developer use?

An enterprise application requires dynamic execution of a SOQL query where the object type and fields to query are determined at runtime based on user input. Which feature should the developer use to prevent SOQL injection vulnerabilities?

A developer creates a custom Lightning Web Component that includes a wired property to retrieve account records. The component needs to react dynamically when the record data is updated via another component on the page. Which decorator should be used on the JavaScript property to receive reactive updates?

A developer needs to retrieve a list of Accounts along with their related Contacts using a single SOQL query in Apex. Which query structure is syntactically correct?

A developer is writing an Apex method and needs to store a collection of unique email addresses while maintaining fast lookup times. Which collection should the developer choose?

A developer wants to retrieve up to 5 recently viewed records of any object type using SOSL. Which SOSL clause specifies the maximum number of records to return?

A developer needs to assign a default value to a custom picklist field via Apex when creating a Lead record. What data type should be assigned to the picklist field in Apex?

A developer is implementing a custom logging framework in Apex. Due to high transaction volumes, multiple asynchronous log entries need to be queued without hitting the maximum number of queueable jobs allowed in a single transaction. What is the execution limit for chained Queueable jobs?

A developer needs to check if a specific key exists in a Map<String, Decimal> before retrieving its value. Which Map method should be used?

A developer is writing a test class for an Apex trigger and needs to insert test Account records. Best practices recommend bypassing hardcoded IDs. Which annotation should be placed on the test setup method to create common test data efficiently?

An Apex trigger processes a large volume of Opportunity updates. The developer uses Database.update(opps, false) to allow partial success. How should the developer inspect the results to handle any failures?

A developer wants to retrieve the developer name of the current user's profile in Apex. Which object relationship should be queried via SOQL?

A developer needs to convert a JSON string representing a list of Account records into an actual List<Account> in Apex. Which method should be used?

Which THREE data types are primitive data types supported in Apex? (Choose three.)

A developer is writing an Apex trigger and needs to optimize performance and prevent governor limit violations. Which TWO practices should the developer follow? (Choose two.)

A developer needs to write a secure SOQL query that prevents unauthorized data exposure by respecting both sharing rules and field-level security. Which TWO approaches can the developer combine to achieve this? (Choose two.)

Which THREE collections are available in Apex? (Choose three.)

A developer is building a custom Lightning Web Component and wants to communicate data from a child component up to its parent component. Which THREE steps are required? (Choose three.)

A developer is writing an Apex trigger that needs to execute logic only when records are updated and a specific custom field 'Status__c' changes from 'Draft' to 'Submitted'. Which THREE elements are required to implement this check correctly? (Choose three.)

A developer implements a custom Apex controller for a Visualforce page that performs DML operations. Which THREE best practices should be followed to ensure robust data management and security? (Choose three.)

A developer needs to query records using SOSL in Apex. Which THREE components are syntactically required in a valid SOSL statement? (Choose three.)