10+ V Trust Eye Hospital Interview Questions and Answers

Create a trigger on Order Products to display the most sold product type on the account

• Create a trigger on Order Products object in Salesforce

• Use SOQL query to count the number of each product type sold

• Update the most_sold_product field on the Account object with the highest sold product type

Create a trigger on Account to prevent deletion if associated with one or more contacts

• Create an after delete trigger on Account object

• Query for related contacts using SOQL

• If contacts are found, add an error message to prevent deletion

Best practices in Trigger and trigger events

• Best practices include bulkifying triggers, using helper classes, and limiting logic in triggers

• Trigger events are before insert, before update, after insert, after update, etc.

• Examples of trigger events include before insert, after update, etc.

Connected App, remote site settings, and OAuth are key components in Salesforce for enabling secure external access to Salesforce data and functionality.

• Connected App is a framework that enables external applications to securely integrate with Salesforce using APIs.

• Remote Site Settings allow Salesforce to make callouts to external services over HTTPS.

• OAuth is an open standard for access delegation, commonly used in Salesforce for authentication and authorization of external a...read more

Future methods in Salesforce can accept primitive data types as parameters.

• Primitive data types like Integer, String, Boolean, etc. can be passed as parameters to Future methods.

• Non-primitive data types like custom objects or collections cannot be passed as parameters to Future methods.

• Example: @future public static void myFutureMethod(Integer param1, String param2) { }

Create a trigger on Contact to display the number of contacts on the related Account.

• Create an after insert, update, delete trigger on Contact object

• Query for the count of contacts related to the Account

• Update a custom field on the Account with the count of contacts

Display Accounts with related contacts in a list using LWC code

• Create a Lightning web component (LWC) to display the list

• Use Apex to query for Accounts and their related Contacts

• Iterate over the data to display Accounts and their related Contacts in the list

Connection from Mulesoft to Salesforce is done using Salesforce Connector in Mulesoft Anypoint Platform.

• Use Salesforce Connector in Mulesoft Anypoint Platform to establish connection

• Authenticate using Salesforce credentials (username, password, security token)

• Utilize Salesforce APIs to interact with Salesforce data

With and without sharing in Salesforce determines whether sharing rules are enforced for a class.

• With sharing keyword enforces sharing rules, restricting access to records based on the user's profile and organization-wide defaults.

• Without sharing keyword does not enforce sharing rules, allowing full access to all records regardless of the user's profile or organization-wide defaults.

To pass subjects to future methods, use the @future annotation in Apex.

• Use the @future annotation before the method declaration to indicate that the method will run asynchronously in the future.

• Pass the subject parameters to the @future method as arguments when calling the method.

• Ensure that the subject parameters are serializable to be passed to future methods.

Tools for deployment include Salesforce DX, Ant Migration Tool, Change Sets, and Metadata API.

• Salesforce DX is a command-line interface for development and deployment

• Ant Migration Tool is a Java/Ant-based tool for moving metadata between environments

• Change Sets allow for moving configuration changes between orgs

• Metadata API is a web service for managing metadata

Future is asynchronous and runs in a separate thread, while Queueable Apex runs in the same thread but can be queued for execution.

• Future methods are used for executing code asynchronously, while Queueable Apex is used for chaining jobs and running them in a specific order.

• Future methods have a limit of 50 per transaction, while Queueable Apex has a limit of 50 jobs in the queue per transaction.

• Future methods cannot be scheduled, while Queueable Apex can be scheduled for futu...read more

Promise is an object representing the eventual completion (or failure) of an asynchronous operation, and promiseAll is a method that takes an iterable of promises and returns a single Promise that resolves when all of the promises have resolved.

• Promise is used in JavaScript to handle asynchronous operations.

• It represents a value that may not be available yet, but will be resolved at some point in the future.

• PromiseAll is a method that takes an iterable of promises and returns...read more

Rollup summary field is a field in Salesforce that calculates values from related records and displays the result on a parent record.

• Rollup summary fields are used to perform calculations on child records and display the result on a parent record.

• They can be used to calculate the sum, count, minimum, or maximum of a field in related records.

• For example, a rollup summary field can be used to calculate the total amount of all opportunities related to an account.

• Rollup summary f...read more