upGrad Campus Technical Mentor Interview Questions and Answers

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Q1. Technical in detail
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Q1. What is polymorphism
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Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q2. What is method overriding
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Method overriding is a feature in object-oriented programming where a subclass provides a specific implementation of a method that is already provided by its parent class.
• Occurs in inheritance when a subclass provides a specific implementation of a method that is already provided by its parent class

• The method in the subclass must have the same name, return type, and parameters as the method in the parent class

• Allows fo...read more
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Q1. What is interceptor
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An interceptor is a design pattern commonly used in software development to capture and manipulate incoming and outgoing requests.
• Interceptors can be used for logging, authentication, authorization, error handling, and more

• In Angular, interceptors can be used to modify HTTP requests before they are sent to the server

• In Spring framework, interceptors can be used to intercept client requests and server responses
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Q2. What is filter in spring
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A filter in Spring is a component that intercepts incoming requests and outgoing responses, allowing for pre-processing and post-processing.
• Filters are used for tasks such as logging, authentication, authorization, and more

• Filters can be configured in the Spring application context

• Examples of filters in Spring include CharacterEncodingFilter, HiddenHttpMethodFilter, and CorsFilter
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Q1. What is your contribution
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My contribution as a Technical Lead includes leading a team, providing technical guidance, resolving technical issues, and ensuring project success.
• Leading a team to achieve project goals

• Providing technical guidance and mentorship to team members

• Resolving technical issues and challenges

• Ensuring project success through effective planning and execution
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Q2. What have you done in your project
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I have led a team in developing a new feature for our product, involving designing, coding, testing, and deployment.
• Led a team in developing a new feature

• Designed the architecture for the feature

• Coded the functionality using Java and Spring Boot

• Tested the feature using JUnit and Mockito

• Deployed the feature to production environment
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Q1. How soon can you join
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I can join within 2 weeks.
• I can start within 2 weeks of receiving an offer.

• I need to give notice to my current employer.

• I may need time to relocate if necessary.
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Q2. How was your last interview
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My last interview went well, I was able to showcase my technical skills and experience effectively.
• Prepared thoroughly by reviewing common technical interview questions

• Highlighted my experience leading technical teams and projects

• Demonstrated problem-solving skills with real-life examples

• Received positive feedback on my communication and teamwork abilities
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Q1. Offer letter related
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Q2. Relocation related
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Q1. Ticket booking and travel date related
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Q2. Confirmation on travel
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Q1. Are you ready to travel?
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Yes, I am ready to travel for work as needed.
• I am willing to travel for client meetings, conferences, and team collaborations.

• I have previous experience traveling for work in my current or past roles.

• I understand the importance of face-to-face interactions in a technical lead role.
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Q2. Have you talked to your reporting manager
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Yes, I regularly communicate with my reporting manager to provide updates and discuss any issues or concerns.
• Regularly scheduled check-ins with reporting manager

• Provide updates on project progress

• Discuss any issues or concerns

• Seek guidance and feedback from reporting manager
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Q1. All AWS related questions
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Q2. Automation questions specific cloud automation using Python
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Q1. Overall infrastructure handling & Trouble shooting
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Q2. How you perform as Individual contributor/ get team lead opportunity how you handle it
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I excel as an individual contributor and transition smoothly into a team lead role by leveraging my technical expertise and leadership skills.
• Demonstrate strong technical skills and consistently deliver high-quality work as an individual contributor.

• Proactively seek opportunities to mentor and guide team members, showcasing leadership potential.

• Communicate effectively with team members, fostering collaboration and driv...read more
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Q1. Tell me about yourself and your project
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I am a seasoned Technical Lead with experience in leading projects from conception to completion.
• Led a team of developers in the development of a new e-commerce platform

• Implemented agile methodologies to improve project efficiency

• Collaborated with stakeholders to gather requirements and ensure project alignment
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Q2. Some Logics , Java and microservices scenario based questions
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Q1. Managerial Round - Roles and Responsibility questions
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Q2. Scenario based question on our skills
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Questions on quant and math aptitude

Q1. Introduce yourself
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I am a dedicated Technical Specialist with 5 years of experience in IT infrastructure management and troubleshooting.
• 5 years of experience in IT infrastructure management

• Skilled in troubleshooting technical issues

• Strong knowledge of network systems and protocols

• Certified in Cisco networking technologies
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Q2. Which language do you like?
Ans. 
I like programming languages such as Python, Java, and C++.
• Python

• Java

• C++
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Q1. Questions related to microservices
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Q2. How Springboot works internally
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Springboot is a framework that simplifies the development of Java applications by providing a set of tools and conventions.
• Springboot uses embedded servers like Tomcat or Jetty to run applications.

• It auto-configures many components based on dependencies added to the project.

• It uses annotations like @SpringBootApplication to define the main class of the application.

• Springboot uses Spring Framework's Inversion of Control...read more
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Q1. Questions related to Kafka
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Q2. SAGA Design pattern and how you can implement it
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SAGA design pattern is used for managing long-lived transactions in distributed systems.
• SAGA pattern breaks down a long transaction into a series of smaller, more manageable steps.

• Each step in the SAGA pattern is a separate transaction that can be rolled back if needed.

• SAGA pattern ensures that the overall transaction is eventually consistent.

• Examples of SAGA pattern implementation include using compensating transactio
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Test communication skill,teamwork and leadership, problem-solving decision making, knowledge and awareness,time management, convincing and persuasive skills,handling pressure.

Q1. What programming language are you most familiar with,describe a troubleshooting process you d'follow for a crashing program, how can you debug a program while it's being used?,what is your expertise and w...read more
Ans. 
I am most familiar with Java. I follow a systematic troubleshooting process, use debugging tools, and constantly seek to expand my expertise.
• Identify the error message or symptoms of the crashing program

• Review the code for any obvious mistakes or bugs

• Use debugging tools like breakpoints and print statements to pinpoint the issue

• Continuously test and monitor the program while making changes

• Seek to expand expertise in Ja...read more
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Q2. Tell me about yourself, what are your greatest strengths, what value you will add to our company, what attracted you to this role ,what are your salary expectations,what should we hire you
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Q3. What makes you unique, what is your leadership style, what motivates you, what are your career goal
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Q4. Describe your dream job
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Q5. What are you passionate about, which company culture suits you best,how do you do culture add interview, what's the biggest hike,what the meaning of culture add.
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Q6. What's the biggest hike?
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The biggest hike I have ever been on was a challenging 10-mile trek up a steep mountain.
• The biggest hike I have done was a 10-mile trek

• It was challenging and involved steep terrain

• The hike took several hours to complete
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Q7. Describe your dream job?
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Data structure, LIFO,stack,FIFO

It was around 20 minutes

Time was around 20 minutes for the same

Q1. What is refraction
Ans. 
Refraction is the bending of light as it passes from one medium to another.
• Refraction occurs when light travels from one medium to another with a different density.

• The speed of light changes as it moves through different mediums, causing it to bend.

• Examples of refraction include the bending of light in water or a prism splitting white light into its colors.
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Q2. What is density
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Density is a measure of how much mass is contained in a given volume.
• Density is calculated by dividing the mass of an object by its volume.

• Common units for density include g/cm^3 or kg/m^3.

• For example, water has a density of 1 g/cm^3, while gold has a density of 19.3 g/cm^3.
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