Persistent Systems Qa Module Lead Interview Questions and Answers

Email Studio is a Salesforce tool for creating and sending personalized emails to targeted audiences.

• Create an email in Email Studio using drag-and-drop tools or HTML coding

• Select a targeted audience using Salesforce data

• Preview and test the email before sending

• Schedule or send the email to the selected audience

• Track email performance and engagement metrics

Omnichannel is a marketing strategy that provides a seamless and integrated customer experience across all channels.

• Omnichannel focuses on creating a consistent brand experience across all channels

• It involves integrating online and offline channels such as social media, email, mobile, and physical stores

• Customers can interact with the brand through any channel and receive a consistent experience

• Examples include Starbuc...read more

Web to Case is a Salesforce feature that allows customers to submit support cases through a web form.

• Web to Case creates a case record in Salesforce from information submitted through a web form.

• The web form can be customized to include specific fields and validation rules.

• Web to Case can be integrated with email-to-case to ensure all customer inquiries are captured in Salesforce.

• Examples of industries that use Web to ...read more

With sharing and without sharing are keywords used in Apex to specify sharing rules for a class.

• With sharing enforces the sharing rules of the current user, while without sharing ignores them.

• With sharing is used for classes that access or modify data that belongs to multiple users, while without sharing is used for utility classes or classes that only access data owned by the current user.

• With sharing is the default b...read more

Without sharing keyword is used in Apex to bypass sharing rules and access all data.

• Used in classes that need to access all data regardless of sharing rules

• Can be used in batch classes, trigger handlers, and unit tests

• Should be used with caution as it can compromise data security

• Example: Database.delete([SELECT Id FROM Account], false);

Static and transient keywords are used in Java programming language for different purposes.

• Static keyword is used to create class-level variables and methods that can be accessed without creating an instance of the class.

• Transient keyword is used to indicate that a variable should not be serialized when the object is converted to a byte stream.

• Static variables are shared among all instances of a class, while transient ...read more

Field level securities in Aura components

• Use Lightning Data Service to enforce CRUD and FLS

• Use Apex to enforce additional security logic

• Use Lightning Design System to control visibility of fields

• Use custom validation rules to enforce business logic

• Use sharing rules to control record access

Field-level security can be maintained using profiles, permission sets, and sharing rules.

• Profiles can be used to restrict access to fields for a group of users.

• Permission sets can be used to grant additional access to specific fields for certain users.

• Sharing rules can be used to extend access to fields beyond the default sharing settings.

• Validation rules can also be used to enforce data integrity and security at the

LDS stands for Local Data Store.

• LDS is a database that stores data locally on a device.

• It is commonly used in mobile applications to store data offline.

• LDS can be used to store user preferences, cached data, and other information.

• Examples of LDS include SQLite and Realm.

force:createRecord allows creation of records without Apex code.

• Saves time and effort by eliminating the need for Apex code

• Allows for easy creation of records from custom or standard objects

• Can be used in Lightning Experience, Salesforce mobile app, and Communities

• Can prepopulate fields with default values

• Can be used with custom Lightning components

• Example: Creating a new Account record from a custom Lightning componen

Hashmap uses hashing to store key-value pairs, while linkedlist is a data structure used to store a collection of elements.

• Hashmap uses a hash function to map keys to indices in an array, where the values are stored.

• Linkedlist is a collection of nodes, where each node contains a value and a reference to the next node.

• Hashmap can have collisions, where multiple keys map to the same index, which is resolved using separat...read more

A framework is a set of rules, guidelines, and standards that provide a structure for developing software applications.

• A framework provides a foundation for building software applications

• It includes pre-written code and libraries that can be reused

• Frameworks can be used to speed up development time and improve code quality

• Examples of popular frameworks include React, Angular, and Django

Improving application performance

• Identify and optimize slow database queries

• Minimize network requests and optimize data transfer

• Use caching to reduce server load and improve response time

• Optimize code by removing unnecessary loops and improving algorithms

• Use a content delivery network (CDN) to improve page load times

• Implement load balancing to distribute traffic evenly across servers

• Use profiling tools to identify perf...read more

Application security can be ensured through various measures.

• Implementing secure coding practices

• Using encryption for sensitive data

• Regularly updating software and patches

• Implementing access controls and authentication mechanisms

• Conducting regular security audits and testing

• Using firewalls and intrusion detection systems

• Training employees on security best practices

• Implementing a disaster recovery plan

• Performing regular