Tavant Technologies Interview Questions, Process, and Tips

Q1. Solid principles
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Q2. What is Polymorphism ?
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Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example of compile-time polymorphism: function overloading where multiple functions have the same name but different paramete...read more
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Q3. Write code on abstract class and interface?
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Abstract classes and interfaces are used in object-oriented programming to define common behavior and structure for classes.
• Abstract class can have both abstract and non-abstract methods, while interface can only have abstract methods.

• Classes can implement multiple interfaces but can only inherit from one abstract class.

• Abstract classes can have constructors, while interfaces cannot.

• Example: abstract class Animal { abs...read more
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Q4. How to improve performance of an Stored procedure
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To improve performance of a Stored procedure, optimize query, use indexes, minimize data retrieval, and avoid cursors.
• Optimize query by using proper indexing

• Minimize data retrieval by fetching only required columns

• Avoid using cursors for looping through data

• Use SET NOCOUNT ON to stop the message indicating the number of rows affected by a Transact-SQL statement
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Q5. Explain abt JWT
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JWT stands for JSON Web Token, a compact and self-contained way for securely transmitting information between parties as a JSON object.
• JWT is commonly used for authentication and information exchange in web development.

• It consists of three parts: header, payload, and signature.

• The header typically consists of the type of token and the signing algorithm being used.

• The payload contains the claims, which are statements ab...read more
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Q1. What is dependency Injection
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Dependency Injection is a design pattern in which components are given their dependencies rather than creating them internally.
• Allows for easier testing by providing mock dependencies

• Promotes loose coupling between components

• Improves code reusability and maintainability

• Commonly used in frameworks like Spring in Java
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Q2. How to register dependency Injection in asp.net core??
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Dependency Injection in ASP.NET Core is registered in ConfigureServices method of Startup class.
• Add services.AddSingleton(); for singleton lifetime

• Add services.AddScoped(); for scoped lifetime

• Add services.AddTransient(); for transient lifetime
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Q3. Design patterns
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Q4. What is inceptor in angular?
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Inceptor in Angular is a service that allows intercepting HTTP requests and responses.
• Inceptor is used for modifying requests or responses before they are sent or received.

• It can be used for adding headers, logging, error handling, etc.

• Example: intercepting requests to add authentication token.
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Q5. Difference between read-only and const with an example
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Read-only variables can be modified by the program, while const variables cannot be changed.
• Read-only variables can be modified by the program during runtime, while const variables cannot be changed at all.

• Using 'const' keyword ensures that the value of the variable remains constant throughout the program.

• Read-only variables are typically used when the value needs to be initialized at runtime, while const variables are...read more
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Q1. What is SOLID principle?
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SOLID is a set of five design principles to make software designs more understandable, flexible, and maintainable.
• S - Single Responsibility Principle: A class should have only one reason to change.

• O - Open/Closed Principle: Software entities should be open for extension but closed for modification.

• L - Liskov Substitution Principle: Objects of a superclass should be replaceable with objects of its subclasses without aff...read more
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Q2. What is Multitenancy?
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Multitenancy is a software architecture where a single instance of the software serves multiple customers, known as tenants.
• Allows multiple users (tenants) to access the same application while keeping their data isolated

• Reduces costs by sharing resources among multiple users

• Customization options for each tenant to meet their specific needs
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Q1. What is CopyOnWriteArrayList?
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CopyOnWriteArrayList is a thread-safe variant of ArrayList where all mutative operations (add, set, remove, etc) are implemented by making a fresh copy of the underlying array.
• CopyOnWriteArrayList is part of the java.util.concurrent package in Java.

• It is used in scenarios where reads are far more common than writes, as it allows for high read concurrency without the need for synchronization.

• It is particularly useful in...read more
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Q2. What is the benefit of Java8 Stream?
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Java8 Stream provides a functional approach to processing collections of objects.
• Allows for functional-style operations on collections like map, filter, reduce

• Supports parallel processing for improved performance

• Lazy evaluation allows for efficient processing of large datasets

• Reduces boilerplate code and promotes cleaner, more concise code

• Example: List names = Arrays.asList("Alice", "Bob", "Charlie"); names.stream().f...read more
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Q3. Public subnet vs Private subnet in AWS
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Public subnet allows internet access, while private subnet does not.
• Public subnet has a route to the internet gateway, while private subnet does not.

• Instances in public subnet can have public IP addresses, while instances in private subnet cannot.

• Public subnet is typically used for resources that need to be accessed from the internet, while private subnet is used for resources that should not be directly accessible fro
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Q1. What is indexing
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Indexing is a technique used to optimize the performance of databases by allowing faster retrieval of data.
• Indexing creates a data structure that improves the speed of data retrieval operations in a database.

• It works by creating an index on one or more columns in a table, allowing the database to quickly locate the rows that match a certain condition.

• Examples of indexing include creating indexes on primary keys, foreig
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Q2. Solid principle
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Q3. Core java questions and giving two coding with snippet
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Q1. Find the duplicate name in student table in sorted way,anagram checker and more coding questions asked from starting to end of interview
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Q1. Write an lwc component
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An LWC component for displaying a list of contacts
• Create a new LWC component with the necessary HTML, CSS, and JavaScript files

• Use the @wire decorator to fetch a list of contacts from Salesforce

• Display the list of contacts using HTML template and iterate over the data
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Q1. What is active directory and where do you use it?
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Active Directory is a directory service developed by Microsoft for Windows domain networks.
• Centralized database for managing network resources

• Stores information about users, computers, and other network objects

• Used for authentication, authorization, and configuration

• Enables single sign-on for users across multiple applications and services
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Q2. Do you know about VPN, Task manager and what is the use of the control panel?,where did you used it in real life scenario?
Ans. 
Yes, I am familiar with VPN, Task Manager, and Control Panel. I have used them in various real-life scenarios.
• VPN stands for Virtual Private Network and is used to securely connect to a private network over the internet.

• Task Manager is a system monitor and task manager utility that provides information about the processes and applications running on a computer.

• Control Panel is a centralized hub in Windows operating sys...read more
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Q3. Do you have any idea about technical support.
Ans. 
Technical support involves providing assistance and troubleshooting for technical issues related to software, hardware, or other technology.
• Providing assistance to users experiencing technical issues

• Troubleshooting software, hardware, and network problems

• Installing and configuring software and hardware

• Maintaining documentation of technical issues and solutions

• Communicating effectively with users to resolve issues
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Q1. Introduce yourself
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I am a dedicated Technical Support Analyst with 5 years of experience in troubleshooting hardware and software issues.
• 5 years of experience in technical support

• Proficient in troubleshooting hardware and software issues

• Strong communication and problem-solving skills
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Q2. Why have you done the particular course and why are you interested in this role now?
Ans. 
I pursued the course to enhance my technical skills and am interested in this role for the opportunity to apply my knowledge in a practical setting.
• To enhance my technical skills and knowledge

• Interest in applying knowledge in a practical setting

• Passion for troubleshooting and problem-solving

• Desire to work in a dynamic and challenging environment
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Generic aptitude test questions from campus recruitment

Engaging GD and good moderators

Q1. Tell us about yourself
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Q2. BA processes and flows
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Q3. Situational and stakeholder management related queries
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