SalesForce MCQ Questions

The Lead object represents a prospect or potential opportunity: someone interested in your product who has not yet been qualified.

QueryResult.size is an int: the total number of rows the query returns.

logout() takes no arguments; it ends the current session: LogoutResult = binding.logout();.

Describe calls let a client obtain metadata about your data at runtime, such as which objects and fields exist.

A calculated (formula) field gets its value from a formula and is read-only.

When an object does not have a master-detail relationship to another object, a standard ID field is created automatically. This is a unique 15 or 18-character alphanumeric identifier that serves as the record's primary key. The ID is auto-generated upon record creation and remains constant throughout the record's lifecycle. Unlike master-detail relationships where the child record depends on the parent, standalone objects manage their own IDs independently.

API calls are synchronous: the client waits for the response, and successful changes are committed automatically.

Cloud computing means using scalable, virtualized computing resources delivered as a service over the internet and paid for as used.

GROUP BY ROLLUP in SOQL accepts at most three fields in its comma-separated list.

Triggers are Apex code that executes before or after record operations (insert, update, delete, undelete). Triggers enable automation of complex business logic when records change. They have access to old and new record versions, can perform validations, update related records, or call external services. Triggers run in bulk context processing up to 200 records. Proper trigger design follows best practices like one trigger per object and logic in handler classes.

resetPassword() changes a user's password to a system-generated value and returns it.

The source answer is SSL 3.0. Salesforce now accepts only TLS 1.2 or later; SSLv3 is retired as insecure.

Named Credentials store authentication details for callouts, including endpoint URLs, authentication protocols, and certificates. They enable declarative callout authentication without hardcoded credentials. Named credentials support OAuth, password authentication, and JWT. Understanding named credentials improves callout security and maintainability.

The OldValue field of SolutionHistory holds up to 255 characters.

The partner WSDL uses one generic sObject type to represent every object, standard or custom.

An sObject is any Salesforce object, standard (Account, Campaign) or custom, that can be stored in the database.

Integer fields are represented by the int data type.

Client applications can query your organization's information (records and metadata) through the API.

Base64 encoding is used to store binary file content in Attachment, Document and Scontrol records through the API.

Abstract classes can't be instantiated and may contain abstract methods requiring implementation by subclasses. They use 'abstract' keyword. Abstract classes enable partial implementation with enforced subclass completion. They're useful for framework classes with common functionality and required customizations.

Apex Limits (Governor Limits) restrict resources consumed by Apex code. Limits include SOQL queries (100 synchronous), DML statements (150), CPU time (10 seconds), heap size (6MB), and more. Limits prevent resource monopolization in multi-tenant environment. Efficient code design respects limits. Exceeding limits throws exceptions.

AccountNumber on Account is a string (text) field.

A Visualforce page is wrapped in a single <apex:page> tag; all other markup goes inside it.

accountId in convertLead() has the ID type: the ID of an existing account to merge the lead into.

XML parsing in Apex uses XmlStreamReader and XmlStreamWriter for reading/writing XML. DOM is not supported due to memory constraints. Streaming parser processes XML sequentially. Understanding XML handling enables integration with SOAP services and XML-based systems.

Password and token access in Salesforce uses the format: password + security token concatenated together. The security token is a case-sensitive alphanumeric key sent to the user's email when password is reset or token is reset. For API authentication, users provide username, password+token combination. Tokens ensure additional security for API access from untrusted networks and are required when accessing from outside trusted IP ranges.

Developer Edition allows up to 10 custom apps.

NewValue in the history objects (such as ContractHistory) has the anyType type, since the tracked field can be of any type.