Doha Bank Interview Questions and Answers

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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Aptitude test contains Logical Reasoning Questions, Analytical Skills questions, and some general Questions, there are no coding questions for it

Q1. First Question is to introduce yourself
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Q2. Want to explain me my data science project I explained it in good way
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Q3. Gave some scenario that how your project will work for these secnarios
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Q4. Asks me about the polymorphism and its example
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Q5. Asks about my family background
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Q6. Asks whether I am able to relocate
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Q1. What is the expected GDP of India? Ans-India's economic growth is expected to accelerate to 6.7 per cent in the second half (H2) of the fiscal year, bringing the full-year 2024-25 GDP growth to 6.4 per cen...read more
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Q2. 2) Tell me the process of deceased claim in without nominee case? claim process in without nominee case Ans- We will process deceased claim.in the favor of regal hire in the case of absence of nomination.
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Q1. Tell me the process of deceased claim in without nominee case? claim process in without nominee case
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Q1. Discussed about my personal discussion and my overall experience
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Q2. Disussion about product knowledge
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Q3. Discussed about why didn't have team handling Experience?
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Q1. What is current CTC?
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Q2. What is the Expectation CTC?
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Q1. Quantitative Aptitude, Reasoning, English and General Awareness
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Q2. Professional Knowledge based questions .
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Q1. Technical questions
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Q2. HR questions
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Q1. Basic interview
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Q2. Previous job experience
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Q3. Good experience
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Q4. Hr round basic job details
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Q1. Basic job details
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Q2. Documents verification Portal
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Q1. Tell us about your projects
Ans. 
I have worked on projects involving predictive modeling, natural language processing, and recommendation systems.
• Developed a predictive model to forecast customer churn for a telecom company

• Implemented a sentiment analysis tool using NLP techniques to analyze customer reviews

• Built a recommendation system for an e-commerce platform to personalize product recommendations
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Q2. How would you tackle a Recommendation engine
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Q1. Group id in kafka consumer configuration
Ans. 
Group id is a unique identifier for a group of consumers in Kafka consumer configuration.
• Group id helps in coordinating the consumption of messages among multiple consumers in a consumer group.

• Each consumer group should have a unique group id to ensure proper message distribution.

• Changing the group id will result in the consumer group starting consumption from the beginning of the topic.

• Group id is specified in the con...read more
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Q2. Recursive algorithm for multiplying 2 numbers
Ans. 
Recursive algorithm for multiplying 2 numbers
• Define a base case for when one of the numbers is 0

• Use recursion to repeatedly add the second number to the result until the first number reaches 0

• Consider handling negative numbers and optimizing for efficiency
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Q3. Spring filters implementation
Ans. 
Spring filters are used to intercept HTTP requests and responses in a Spring application.
• Spring filters can be used for logging, authentication, authorization, etc.

• They are implemented using the javax.servlet.Filter interface.

• Filters can be configured in the web.xml file or using annotations like @WebFilter.

• Example: Implementing a logging filter to log incoming requests and outgoing responses.
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Q4. SQL query for first 5 biggest salaries
Ans. 
SQL query to retrieve the first 5 biggest salaries from a table
• Use the ORDER BY clause to sort salaries in descending order

• Use the LIMIT clause to limit the results to the first 5 rows
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