D I Management International Services Interview Questions and Answers

Q1. Basic question on the tool I use in previous company and ask question on the components of it.
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Q1. More on what is my role and managerial round.
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Q1. 2 hour long interview with a panel of 4. Possibly every single question that can be asked and repeatedly same things. They tried understanding the process and functions elaborately way too much which was ...read more
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Q1. Everything was already asked. But they need to drench and waste time of the candidate and themselves so they set up another round of technical to ask the same questions again and again.
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The Aptitude Test session accesses mathematical and logical reasoning abilities

Q1. What is Vlookup
Ans. 
Vlookup is a function in Excel used to search for a value in a table and return a corresponding value from another column.
• Vlookup stands for 'Vertical Lookup'

• It is commonly used in Excel to search for a value in the leftmost column of a table and return a value in the same row from a specified column

• Syntax: =VLOOKUP(lookup_value, table_array, col_index_num, [range_lookup])

• Example: =VLOOKUP(A2, B2:D10, 3, FALSE) - searc...read more
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Q2. Some IF else Question in Excel
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Q3. What does your day in your previous organization look like?
Ans. 
My day in my previous organization involved analyzing large datasets, creating reports, and presenting findings to stakeholders.
• Reviewing and cleaning large datasets to ensure accuracy

• Creating visualizations and reports to communicate insights

• Collaborating with team members to identify trends and patterns

• Presenting findings to stakeholders in meetings or presentations
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Q4. Could you share the technical skills you possess?
Ans. 
I possess strong technical skills in data analysis, including proficiency in programming languages, statistical analysis, and data visualization tools.
• Proficient in programming languages such as Python, R, SQL

• Skilled in statistical analysis and data modeling techniques

• Experience with data visualization tools like Tableau, Power BI

• Knowledge of machine learning algorithms and techniques
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Q5. Can you explain what a Pivot Table is?
Ans. 
A Pivot Table is a data summarization tool used in spreadsheet programs to analyze, summarize, and present data in a tabular format.
• Pivot tables allow users to reorganize and summarize selected columns and rows of data to obtain desired insights.

• Users can easily group and filter data, perform calculations, and create visualizations using pivot tables.

• Pivot tables are commonly used in Excel and other spreadsheet program...read more
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Q6. Find the Highest-paid employee in each department along with their salary and department name.
Ans. 
To find the highest-paid employee in each department, we need to group employees by department and then select the employee with the highest salary in each group.
• Group employees by department

• Find the employee with the highest salary in each group

• Retrieve the employee's name, salary, and department name
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Q1. Can you describe your current roles and responsibilities?
Ans. 
I am currently responsible for leading a team of data scientists, developing and implementing data-driven strategies, and ensuring the quality and accuracy of data analysis.
• Leading a team of data scientists

• Developing and implementing data-driven strategies

• Ensuring quality and accuracy of data analysis
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Q2. What are the technical details of one of your projects?
Ans. 
Developed a predictive model for customer churn using machine learning algorithms.
• Used Python for data preprocessing and model building

• Applied techniques like feature engineering and hyperparameter tuning

• Evaluated model performance using metrics like accuracy, precision, and recall
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Q1. What is the loss function used in XGBoost?
Ans. 
The loss function used in XGBoost is typically the gradient boosting algorithm.
• XGBoost uses the gradient boosting algorithm to minimize the loss function

• Common loss functions include regression loss functions like squared error and logistic loss for classification

• Users can also define custom loss functions in XGBoost
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Q2. Logical puzzle question
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Q1. What are your professional aspirations?
Ans. 
My professional aspiration is to lead a team of data scientists to drive impactful insights and innovations.
• Lead a team of data scientists to tackle complex problems

• Drive impactful insights and innovations through data analysis

• Continuously learn and stay updated on the latest trends in data science

• Collaborate with cross-functional teams to implement data-driven solutions
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Q2. Puzzle question
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Q3. Mathematical series question
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Q1. What is the reason for leaving your current organization?
Ans. 
Seeking new challenges and growth opportunities in a more innovative environment.
• Desire for new challenges and growth opportunities

• Seeking a more innovative work environment

• Looking to expand skill set and knowledge in data science
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Q2. What are your reasons for wanting to join IDFC?
Ans. 
I am excited about the opportunity to contribute my data science skills to IDFC's innovative projects and make a meaningful impact.
• Excited about contributing data science skills to innovative projects at IDFC

• Opportunity to make a meaningful impact through data-driven solutions

• Interested in working with a reputable organization like IDFC
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Q3. What are your strengths and weaknesses?
Ans. 
My strengths include strong analytical skills and attention to detail. My weaknesses include a tendency to overthink and difficulty delegating tasks.
• Strengths: strong analytical skills

• Strengths: attention to detail

• Weaknesses: tendency to overthink

• Weaknesses: difficulty delegating tasks
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Q1. WALK US THROUGH YOUR RESUME.
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Q2. WHAT ARE YOUR QUALIFICATIONS, EXPERIENCE AND BIGGEST ACHIEVEMENTS?
Ans. 
I have a Bachelor's degree in Quality Management, 5 years of experience in quality assurance, and successfully implemented a new quality control system.
• Bachelor's degree in Quality Management

• 5 years of experience in quality assurance

• Implemented a new quality control system
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Q3. HOW MANY NUMBER OF PEOPLE DO YOU DIRECTLY MANAGE AND WHAT CHALLENGES DID YOU FACE AT LAST ORGANISATION?
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Q4. WHAT ARE YOUR PROBLEM SOLVING TECHNIQUES?
Ans. 
I use a combination of root cause analysis, brainstorming, and data analysis to solve problems efficiently.
• Identify the root cause of the problem before jumping to solutions

• Brainstorm potential solutions with a team or individually

• Use data analysis to make informed decisions and track progress

• Implement solutions and monitor results for effectiveness

• Adjust strategies as needed based on feedback and outcomes
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Q5. WHAT METRICS DID YOU ACHIEVE IN OUR LAST ORGANISATION WITH EXAMPLE?
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Q6. WHAT IMPROVEMENTS DID YOU BRING IN YOUR CURRENT ORGANISATION, AND DO YOU GIVE INDIVIDUAL CONTRIBUTION TO THE TEAM FOR THIS OR BY GROUP?
Ans. 
I implemented a new quality control system that improved efficiency by 20% through individual contributions and team collaboration.
• Implemented a new quality control system to streamline processes

• Led training sessions for team members to ensure understanding and compliance

• Collaborated with cross-functional teams to identify and address quality issues

• Introduced regular quality audits to monitor and improve performance
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Q7. WHAT SKILLS DO YOU HAVE- KAIZEN, PROCESS EXCELLENCE, SIX SIGMA, ANY SPECIFIC CERTIFICATIONS AS- SQL OR TABLEAU, DATA STUDIO ETC?
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Q8. WHAT ARE YOUR BIGGEST ACHIEVEMENTS IN YOUR LAST ORGANISATION, AND WHAT BRINGS YOUR INTEREST TO QUALITY?
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Q9. HOW CLOSELY HAVE YOU WORKED WITH SUPPLY CHAIN OPERATIONS AND WHAT EXACTLY WOULD YOU DO TO REDUCE PICKING TIME IN THE WAREHOUSE?
Ans. 
I have closely worked with supply chain operations and would implement process improvements to reduce picking time in the warehouse.
• I have collaborated with supply chain teams to optimize inventory management and streamline processes.

• Implemented barcode scanning technology to improve accuracy and efficiency in picking orders.

• Analyzed data to identify bottlenecks in the picking process and implemented solutions such as ...read more
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Q10. WHAT TECHNIQUE WOULD YOU USE TO REDUCE THE SCM OPERATIONS IN A WAREHOUSE?
Ans. 
Implementing lean principles such as 5S, Kanban, and Just-in-Time inventory management can help reduce SCM operations in a warehouse.
• Implement 5S methodology to organize the warehouse and reduce waste

• Utilize Kanban system to optimize inventory levels and streamline processes

• Adopt Just-in-Time inventory management to minimize excess inventory and improve efficiency
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Q11. BASIC SITUATION, LOGICS AND GENERAL QUESTIONS.
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It's walkin, so they conducted 1 technical mcqs round.

Q1. Multi threading
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Q2. Internal working of hashmap
Ans. 
HashMap in Java is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values based on keys.
• HashMap uses an array of buckets to store key-value pairs.

• Keys are hashed to determine the index in the array where the key-value pair will be stored.

• In case of hash collisions, a linked list or a balanced tree is used to store multiple key-value pairs in the same bucket.

• HashMap allows null keys...read more
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Q3. Spring batch related
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Q4. Non repeating characters in a array
Ans. 
Function to find and return all non-repeating characters in an array of strings.
• Iterate through the array and count the occurrences of each character using a HashMap.

• Then iterate through the array again and check if the count of each character is 1, if so add it to the result list.

• Return the list of non-repeating characters.
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Q5. 3rd highest salary
Ans. 
To find the 3rd highest salary in a database, we can use a SQL query with the 'LIMIT' and 'OFFSET' keywords.
• Use a SQL query with 'ORDER BY salary DESC' to sort the salaries in descending order.

• Use 'LIMIT 1 OFFSET 2' to skip the first two highest salaries and retrieve the third highest salary.

• Example: SELECT salary FROM employees ORDER BY salary DESC LIMIT 1 OFFSET 2;
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Q6. Qualifier vs primary
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A qualifier in Java is used to specify additional information about a primary, which is the main data type or variable.
• A primary in Java is the main data type or variable, while a qualifier provides additional information about the primary.

• Qualifiers can be used to modify the behavior or characteristics of a primary.

• For example, in Java, 'final' is a qualifier that can be used to make a variable constant.
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Q7. Controller vs restcontroller
Ans. 
The main difference is that @RestController is a specialized version of @Controller that is used for RESTful web services.
• Both @Controller and @RestController are used in Spring MVC to handle HTTP requests, but @RestController is specifically used for RESTful web services.

• @Controller is used to create web pages, while @RestController is used to return data in JSON or XML format.

• @RestController is a convenience annotati...read more
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Q8. Spring boot annotataions
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Q9. Oops concepts with examples
Ans. 
OOP concepts include inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class. Example: class Dog extends Animal.

• Encapsulation: Bundling data and methods that operate on the data into a single unit. Example: private variables with public getter and setter methods.

• Polymorphism: Ability for objects to be treated as instances of their paren...read more
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Q10. Spring batch configuration
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Q11. They covered all java, spring and Microservices
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Q1. Microservices architecture
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Q2. How do Microservices communicate
Ans. 
Microservices communicate with each other through various communication protocols like HTTP, messaging queues, and gRPC.
• Microservices can communicate over HTTP using RESTful APIs.

• Messaging queues like RabbitMQ or Kafka can be used for asynchronous communication between microservices.

• gRPC is a high-performance, open-source RPC framework that can be used for communication between microservices.

• Service discovery mechanism...read more
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Q3. How to access the Microservice end point
Ans. 
Microservice endpoints can be accessed using HTTP requests with the appropriate URL
• Use HTTP methods like GET, POST, PUT, DELETE to interact with the microservice

• Construct the URL with the base URL of the microservice and the specific endpoint path

• Include any necessary headers or parameters in the request for authentication or data filtering
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Q4. Why we use microservices
Ans. 
Microservices allow for modular, scalable, and flexible software development by breaking down applications into smaller, independent services.
• Microservices enable easier maintenance and updates as each service can be developed, deployed, and scaled independently.

• They improve fault isolation, as failures in one service do not necessarily affect the entire application.

• Microservices promote agility and faster time-to-mark...read more
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Q1. QC experience about the position
Ans. 
I have 5 years of experience in QC, including conducting inspections, creating quality control plans, and ensuring compliance with industry standards.
• Conducted inspections on raw materials, in-process production, and finished products

• Created and implemented quality control plans to improve product quality and reduce defects

• Ensured compliance with industry standards and regulations, such as ISO 9001 and AS9100

• Collaborat...read more
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Q2. QA experience
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Q1. Computer software experience
Ans. 
I have extensive experience with various computer software programs, including QA testing tools and data analysis software.
• Proficient in using QA testing tools such as Selenium, JIRA, and HP Quality Center

• Skilled in data analysis software like Microsoft Excel and SQL

• Familiar with programming languages like Java and Python for automation testing

• Experience with bug tracking systems and version control tools
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Q2. Microsoft experience
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Q1. Computer knowledge
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Q2. Work knowledge
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Q1. Professional knowledge
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Q2. Periority of work
Ans. 
Prioritizing work involves identifying and organizing tasks based on their importance and urgency.
• Identify tasks that are critical to project success

• Consider deadlines and time constraints

• Communicate with team members to understand priorities

• Use tools like priority matrices or task lists

• Adjust priorities as needed based on changing circumstances
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Knowledge of computer

Q1. Year of work experience
Ans. 
I have 5 years of work experience as a QA QC Engineer.
• 5 years of work experience in QA QC engineering

• Experience in conducting quality control inspections

• Proficient in creating and implementing quality assurance processes

• Familiar with industry standards and regulations

• Strong analytical and problem-solving skills
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Q2. About the company
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About the future company

Assessment via link MCQ

Q1. Microservices theory, Kafka
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Q2. Singoloton design pattern, concurrent package, core java, collection questions, Java 8 related problem solving stream api questions
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Q1. Same like round 1, little bit managerial
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Q2. Producer consumer multithreading, Java 8 , core java, project
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Q1. Behavioral questions
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Q2. Situation based questions
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