Tavant Technologies Interview Questions and Answers

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

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

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

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

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

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

MVVM and MVP are architectural patterns; ViewModels facilitate data sharing between Fragments, enhancing unit testing and data management.

• MVVM (Model-View-ViewModel) separates UI logic from business logic, while MVP (Model-View-Presenter) emphasizes a more direct interaction between View and Presenter.

• In MVVM, ViewModels hold UI-related data and can be shared between Fragments, allowing for seamless data passing using ...read more

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

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<String> names = Arrays.asList("Alice", "Bob", "Charlie"); na...read more

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...read more

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...read more

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

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

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

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

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

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