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I applied via LinkedIn and was interviewed in Feb 2024. There were 2 interview rounds.
HashMap is not thread-safe while ConcurrentHashMap is thread-safe and allows concurrent modifications.
HashMap is not thread-safe and can lead to ConcurrentModificationException if modified concurrently.
ConcurrentHashMap allows concurrent modifications without the need for external synchronization.
ConcurrentHashMap achieves thread-safety by dividing the map into segments, allowing multiple threads to operate on differen...
I applied via Recruitment Consulltant and was interviewed in May 2024. There was 1 interview round.
I was interviewed before Sep 2023.
Azure template is a JSON file that defines the resources needed for an Azure solution.
Azure template is used for deploying and managing Azure resources in a declarative manner.
It allows you to define the infrastructure and configuration of your Azure resources in a single file.
Templates can be used to create virtual machines, storage accounts, networking resources, etc.
Azure Resource Manager (ARM) uses templates to aut
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Transactions in Spring Boot help manage database operations as a single unit of work.
Transactions ensure ACID properties (Atomicity, Consistency, Isolation, Durability) for database operations.
Use @Transactional annotation to mark a method as transactional.
Transactions can be managed programmatically using TransactionTemplate.
Rollback can be triggered manually in case of exceptions.
Spring Boot supports both declarative
posted on 19 Jul 2024
Collaborative, fast-paced, innovative work environment with emphasis on teamwork and continuous learning.
Open communication and collaboration among team members
Fast-paced and dynamic work environment
Emphasis on innovation and creativity
Teamwork and support for continuous learning and growth
Train a Decision Tree based on provided dataset.
Preprocess the dataset by handling missing values and encoding categorical variables.
Split the dataset into training and testing sets.
Train the Decision Tree model on the training set.
Evaluate the model's performance on the testing set using metrics like accuracy or F1 score.
Feature selection can be done using techniques like filter methods, wrapper methods, and embedded methods.
Filter methods involve selecting features based on statistical measures like correlation, chi-squared test, etc.
Wrapper methods use a specific machine learning algorithm to evaluate the importance of features through iterative selection.
Embedded methods incorporate feature selection within the model training proces...
I applied via LinkedIn and was interviewed in Feb 2024. There was 1 interview round.
I applied via Naukri.com and was interviewed in Feb 2023. There were 3 interview rounds.
I applied via Naukri.com and was interviewed in Feb 2021. There were 4 interview rounds.
Implemented the Observer design pattern.
Used to maintain consistency between related objects
Allows for one-to-many relationships between objects
Used in event-driven systems
Example: Used to update UI when data changes in backend
I have implemented a microservices architecture for scalability and flexibility.
Implemented microservices architecture using Docker and Kubernetes
Used API Gateway for routing and load balancing
Implemented service discovery using Consul
Implemented circuit breaker pattern using Hystrix
Implemented centralized logging using ELK stack
Implemented distributed tracing using Zipkin
Implemented event-driven architecture using Kaf...
I improved stored procedure performance by optimizing queries and indexes.
Identified and removed unnecessary joins and subqueries
Used appropriate indexing to speed up query execution
Reduced the number of round trips to the database by using batch processing
Rewrote complex queries to simpler ones
Used stored procedure parameters instead of variables to avoid recompilation
Used SET NOCOUNT ON to reduce network traffic
Used
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