AWC Software Technical Lead Interview Questions and Answers

Q1. They first ask me about my project then ask more how it was working ,and more deep questions on that to understand how much I know about the project I worked on .
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Q2. Spring Authentitation and Authorization,And Kubernetes
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Q1. How does spring injects dependencies
Ans. 
Spring injects dependencies through inversion of control and dependency injection.
• Spring uses inversion of control to manage objects and their dependencies.

• Dependencies are injected into a class through constructor injection, setter injection, or field injection.

• Spring container is responsible for creating and managing objects and their dependencies.

• Example: @Autowired annotation is used for dependency injection in Spr
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Q2. How does Hibernate connects to DB
Ans. 
Hibernate connects to the database using JDBC (Java Database Connectivity) API.
• Hibernate uses JDBC API to establish a connection to the database.

• It uses JDBC drivers to communicate with the database.

• Hibernate configuration file contains database connection details.

• SessionFactory in Hibernate is responsible for creating sessions and managing connections.
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Q1. How to secure your APIs
Ans. 
Securing APIs involves using authentication, authorization, encryption, and monitoring.
• Implement authentication mechanisms such as OAuth, JWT, or API keys

• Use authorization to control access to APIs based on roles and permissions

• Encrypt data transmission using HTTPS/TLS to prevent eavesdropping

• Implement rate limiting and throttling to prevent abuse and DDoS attacks

• Regularly monitor API traffic and logs for suspicious ac
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Q2. How can you configure multiple DBs in your application
Ans. 
Multiple DBs can be configured in an application by using database connection pooling, configuring multiple data sources, and managing transactions across databases.
• Use database connection pooling to efficiently manage connections to multiple databases

• Configure multiple data sources in the application to connect to different databases

• Implement transaction management to ensure data consistency across multiple databases
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Q1. Family Background and Career History
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Q2. Salary Expectations
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Worst experience company is not so good

Q1. What is object oriented programming
Ans. 
Object oriented programming is a programming paradigm based on the concept of objects, which can contain data and code.
• OOP focuses on creating objects that interact with each other to solve problems

• Encapsulation, inheritance, and polymorphism are key principles of OOP

• Examples of OOP languages include Java, C++, and Python
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Q2. Questions on data structute
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Q1. About batch processing
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Q2. About exception handling
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Q1. About project discussion in details
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Q2. Aws services mainly
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Q1. Handling a team
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Q2. Micro service architecture
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Q1. About personal things
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Q2. About financial thing
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Q1. Cisco Servers Installation
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Q2. HPe servers installation
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Q1. Can you provide an overview of your career background?
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Q1. What are performance tunings you have worked on in Data pipeline
Ans. 
I have worked on optimizing data pipeline performance by implementing parallel processing, caching, and optimizing queries.
• Implemented parallel processing to increase throughput

• Utilized caching to reduce data retrieval time

• Optimized queries to reduce database load

• Used compression techniques to reduce data transfer time

• Implemented load balancing to distribute workload

• Used indexing to improve query performance
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Q2. Any experience on AWS,Google,AWS
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Q3. Best practices for DWH
Ans. 
Best practices for DWH
• Design a scalable and flexible architecture

• Ensure data quality and consistency

• Implement proper security measures

• Use ETL tools for data integration

• Create a data dictionary for easy understanding

• Regularly monitor and optimize performance

• Implement disaster recovery and backup plans
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Q1. About education
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Q2. About previous job experience & salary
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Q1. About roles & responsibilities in previous organization
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Q2. Questions related to job i have applied for
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