Lam Research Business Analyst Interview Questions and Answers

Q1. What is confusion matrix
Ans. 
A confusion matrix is a table that is often used to describe the performance of a classification model.
• It is a matrix with rows representing the actual class and columns representing the predicted class.

• It helps in evaluating the performance of a classification model by showing the number of correct and incorrect predictions.

• It consists of four quadrants: True Positive, False Positive, True Negative, and False Negative...read more
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Q2. Define your project
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Q3. Define principle component analysis
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Principal component analysis is a statistical technique used to reduce the dimensionality of data while preserving important information.
• PCA is used to identify patterns in data and express it in a more easily understandable form.

• It works by finding the directions (principal components) along which the variance of the data is maximized.

• These principal components are orthogonal to each other, meaning they are uncorrelat...read more
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Q4. Define inventory policy and inventory control method
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Inventory policy is a set of guidelines for managing inventory levels, while inventory control method is the process of implementing those guidelines.
• Inventory policy determines when to order new inventory and how much to order

• Inventory control method involves tracking inventory levels, forecasting demand, and optimizing order quantities

• Examples of inventory policies include Just-in-Time (JIT) and Economic Order Quanti...read more
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Q5. What is reverse logistics
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Reverse logistics is the process of moving goods from their final destination back to the manufacturer or point of origin for resale, recycling, or disposal.
• Involves returning products from customers to the manufacturer or retailer

• Includes activities such as returns, refurbishment, recycling, or disposal

• Helps in reducing waste and maximizing value from returned products

• Examples: returning a defective product to the man
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Q1. What can you share about your experience?
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I have over 5 years of experience as a Business Analyst in the finance industry.
• Led cross-functional teams to analyze market trends and develop strategic plans

• Performed data analysis to identify opportunities for cost reduction and revenue growth

• Collaborated with stakeholders to gather requirements and create detailed business requirements documents
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Q2. What are the specific responsibilities associated with the role, and how does the workflow typically function?
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Business Analyst responsibilities include analyzing data, identifying trends, and making recommendations to improve business processes.
• Gather and analyze data to identify trends and make recommendations

• Work closely with stakeholders to understand business needs and requirements

• Create reports and presentations to communicate findings and recommendations

• Collaborate with cross-functional teams to implement solutions

• Monito
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Q1. It was little technical with the Excel and Power Bi
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Q1. SELF INTRODUCTION
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Q2. EDUCATIONAL BACKGROUND
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Q1. ABOUT YOUR SELF
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Q2. ABOUT YOUR FAMILY
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Q1. Where do you see Yourself in 5 years ? why Qualcomm ?
Ans. 
In 5 years, I see myself as a senior analyst at Qualcomm, utilizing my skills to drive innovation and contribute to the company's success.
• I am passionate about technology and Qualcomm's cutting-edge advancements in the semiconductor industry align with my career goals.

• I believe Qualcomm's global presence and diverse projects will provide me with ample opportunities for growth and development.

• I aim to become a subject m...read more
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Few standard dsa questions were asked.

Q1. Explain projects
Ans. 
Projects are specific tasks or assignments that require a set of skills and resources to achieve a particular goal or outcome.
• Projects involve defining objectives and deliverables

• They require planning, execution, and monitoring

• Projects often have timelines and budgets

• Examples: Data analysis project to identify customer trends, Project to implement a new software system
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Q2. Introduce urself
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I am a data analyst with a strong background in statistics and data visualization.
• I have a Bachelor's degree in Statistics from XYZ University.

• I have 3 years of experience working as a data analyst at ABC Company.

• Proficient in using tools like Excel, SQL, and Tableau for data analysis.

• I have experience in creating reports and dashboards to present data insights to stakeholders.
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