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I applied via Referral and was interviewed before Jul 2023. There was 1 interview round.
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I was interviewed in Jan 2025.
Exception handling is crucial in programming to handle errors and ensure proper execution. The 'finally' block is used to clean up resources, and throwing exceptions allows for error propagation.
Exception handling is used to manage errors and unexpected situations in a program.
The 'finally' block is used to execute code that should always run, regardless of whether an exception is thrown or not.
Throwing exceptions allo...
ACID properties ensure data integrity in transactions. CAP Theorem states that a distributed system can only guarantee two out of three: Consistency, Availability, Partition Tolerance.
ACID properties: Atomicity, Consistency, Isolation, Durability
Example: In a banking application, a transfer of funds should be atomic, consistent, isolated, and durable
CAP Theorem: Consistency, Availability, Partition Tolerance - a distri...
Comparable is an interface used for natural ordering, while Comparator is used for custom ordering in Java Collections.
Comparable interface is used to define the natural ordering of objects. It is implemented by the class whose objects are to be sorted.
Comparator interface is used to define custom ordering of objects. It is implemented by a separate class.
To implement Comparable, the class needs to override the compare...
Generics in Java allow for creating classes, interfaces, and methods that operate on types parameterized at compile time.
Generics provide type safety by allowing compile-time type checking.
They enable code reusability and reduce the need for casting.
Example: List<String> list = new ArrayList<>();
Code to reverse a string using recursion
Create a recursive function that takes a string as input
Base case: if the string is empty or has only one character, return the string
Recursive case: return the last character of the string concatenated with the result of calling the function on the substring excluding the last character
Object comparison with specific fields involves comparing values of selected fields between two objects.
Object comparison can be done by comparing the values of specific fields in two objects.
Fields can be selected based on unique identifiers or criteria for comparison.
Example: Comparing the 'name' field of two person objects to check if they are the same.
Distributed transactions in microservices involve using compensating transactions and event-driven architecture.
Microservices typically use compensating transactions to maintain consistency across multiple services.
Event-driven architecture can help in coordinating distributed transactions by using events to trigger actions in different services.
Implementing distributed transactions in microservices requires careful de...
Aggregator pattern is used in microservices architecture to combine multiple service responses into a single response.
Aggregator pattern helps in reducing the number of client requests by combining multiple service responses.
It can be implemented using a separate service or within an existing service.
Example: A shopping website aggregating product information from different microservices like inventory, pricing, and re
Factory design pattern is a creational pattern that provides an interface for creating objects in a superclass, but allows subclasses to alter the type of objects that will be created.
Factory method pattern defines an interface for creating objects, but lets subclasses decide which class to instantiate.
It promotes loose coupling by eliminating the need to bind application-specific classes into the code.
Example: A car m...
Indexing in a database is a technique to improve the speed of data retrieval by creating a data structure that allows for quick lookup.
Indexing involves creating a separate data structure that contains pointers to the actual data in the database.
Common data structures used for indexing include B-trees, hash tables, and binary search trees.
Indexes can be created on one or multiple columns in a database table to speed up...
My approach involves using load balancing, caching, asynchronous processing, and horizontal scaling.
Implement load balancing to distribute requests evenly across multiple servers.
Utilize caching mechanisms to store frequently accessed data and reduce response times.
Use asynchronous processing for long-running tasks to free up resources for handling more requests.
Implement horizontal scaling by adding more servers to ha...
CQRS pattern in microservices separates read and write operations for improved scalability and performance.
CQRS stands for Command Query Responsibility Segregation
It separates the read and write operations into two different models
Write operations update the data store, while read operations query a separate data store
CQRS can improve performance and scalability by allowing each model to be optimized for its specific t
API Gateway acts as a single entry point for all client requests in a microservices architecture.
API Gateway handles authentication, authorization, rate limiting, and routing of requests to appropriate microservices.
It helps in decoupling client applications from individual microservices, providing a more flexible and scalable architecture.
API Gateway can also perform tasks like request/response transformation, logging...
SQL query to fetch data from two tables using joins
Use the JOIN keyword to combine rows from two tables based on a related column
Specify the columns to select from each table in the SELECT statement
Use the ON keyword to specify the join condition
I applied via Walk-in and was interviewed in Dec 2024. There was 1 interview round.
As a Sr executive in a warehouse, my role is to oversee the overall operations from receiving goods to shipping them out.
Manage inventory levels to ensure efficient storage and movement of goods
Supervise warehouse staff to ensure tasks are completed accurately and on time
Implement and enforce safety procedures to prevent accidents and injuries
Coordinate with other departments to ensure smooth flow of goods in and out o
Motivate employees by setting clear goals, providing recognition, offering opportunities for growth, and fostering a positive work environment.
Set clear and achievable goals for employees to work towards
Provide regular recognition and rewards for their hard work
Offer opportunities for growth and development through training and promotions
Foster a positive work environment by promoting teamwork, communication, and work-
Increasing transport costs can be achieved through various strategies such as optimizing routes, implementing fuel surcharges, and investing in new technology.
Optimize routes to reduce mileage and fuel consumption
Implement fuel surcharges to offset rising fuel costs
Invest in new technology such as GPS tracking systems to improve efficiency
Negotiate higher rates with carriers based on increased demand or service quality
...
Shortage and excess stock can be handled by implementing efficient inventory management strategies.
Regularly monitor inventory levels to identify shortages and excess stock
Implement just-in-time inventory system to reduce excess stock
Utilize forecasting techniques to predict demand and prevent shortages
Establish relationships with multiple suppliers to mitigate shortages
Implement inventory control measures such as ABC
I applied via LinkedIn and was interviewed in Dec 2024. There were 3 interview rounds.
1.Sum numbers in linked list
2. Maximum sum subarray
Implement a hashmap data structure in code.
Use an array to store key-value pairs
Implement a hash function to map keys to indices in the array
Handle collisions using techniques like chaining or open addressing
Design a platform similar to LinkedIn for professional networking.
Create user profiles with work experience, education, skills, and endorsements.
Allow users to connect with others, join groups, and follow companies.
Include features like job postings, messaging, news feed, and recommendations.
Implement algorithms for personalized content and job suggestions.
Ensure data privacy and security measures are in place.
I applied via Naukri.com and was interviewed in Jun 2024. There were 4 interview rounds.
DSA medium and Java Coding Questions
Frontend coding questions in Js and React js
posted on 31 Jan 2025
I was interviewed in Dec 2024.
The assessment consisted of an online round lasting one hour, during which there were 33 questions, all of which were challenging, including the multiple-choice questions. The questions were divided into six subsections: 1. Data Structures and Algorithms (DSA) - with a problem related to dynamic programming or recursion; 2. Java; 3. Java 8; 4. Spring; 5. Spring Boot; 6. Microservices.
I applied via Naukri.com and was interviewed in Feb 2024. There was 1 interview round.
Improving teamwork requires clear communication, setting common goals, fostering trust, and providing opportunities for collaboration.
Establish clear communication channels to ensure everyone is on the same page
Set common goals and objectives for the team to work towards
Foster trust among team members by encouraging open communication and transparency
Provide opportunities for collaboration through team-building activit...
Success to improve involves setting clear goals, measuring progress, seeking feedback, and making adjustments.
Set specific, measurable, achievable, relevant, and time-bound (SMART) goals.
Regularly track progress towards goals and adjust strategies as needed.
Seek feedback from stakeholders and incorporate suggestions for improvement.
Continuously learn and adapt to changing circumstances.
Celebrate successes and learn fro
posted on 1 Nov 2022
I applied via AmbitionBox and was interviewed in Oct 2022. There were 7 interview rounds.
General knowledge information
It topic general topics like online shopping is good or bad
Technical like c java html c++
Website design . Java c html online shopping
I was interviewed before Oct 2022.
Supporting customers is crucial for business success. It involves providing excellent service, addressing concerns promptly, and building strong relationships.
Provide excellent customer service by being responsive and helpful
Address customer concerns promptly and effectively
Build strong relationships with customers to foster loyalty and repeat business
I applied via Referral and was interviewed in Jun 2021. There were 3 interview rounds.
based on 1 interview
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