LatentView Analytics Data Engineer Interview Questions and Answers

Q1. Fresher or experienced
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Q1. Project history
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Q2. Tech stack used
Ans. 
Our tech stack includes Python, SQL, Apache Spark, Hadoop, AWS, and Docker.
• Python is used for data processing and analysis

• SQL is used for querying databases

• Apache Spark is used for big data processing

• Hadoop is used for distributed storage and processing

• AWS is used for cloud infrastructure

• Docker is used for containerization
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Q1. Handled team or not?
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Q2. Project experience
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Q1. Related the profile they asked about .Net , c#, linq, sqlserver, UI. related topics answer they will ask.
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Q2. Manager will ask about your project and experience.
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Q3. Answer them about your worked projects and project experience.
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Q1. HR will discuss your salary and expected salary.
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Q1. Starts with a introduction, Core Java concepts, OOPS concepts, Singleton design pattern, Spring boot annotations like service, restcontroller.
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Q2. DSA logical questions like 2nd highest number. How to find missing number from an array.
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Q1. Tell me about yourself.
Ans. 
I am a software engineer with 5 years of experience in developing web applications using Java, Spring Boot, and Angular.
• 5 years of experience in software development

• Proficient in Java, Spring Boot, and Angular

• Strong problem-solving skills

• Experience working in Agile development environment

• Bachelor's degree in Computer Science from XYZ University
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Q2. Tell me about your family.
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I come from a close-knit family of five, including my parents, older sister, and younger brother.
• Close-knit family of five

• Parents, older sister, and younger brother

• We enjoy spending time together traveling and trying new restaurants
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Q3. Why do you want to change the company
Ans. 
Seeking new challenges and opportunities for growth in a different environment.
• Desire for new challenges and learning opportunities

• Seeking a better work-life balance

• Interested in working with new technologies or industries

• Looking for a more collaborative team environment
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Q4. After that interviewer describes my work and position in the company.
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Q1. Pyspark optimizations and theoretical questions
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Q2. Find the number of pairs which sum to target.
Ans. 
Count pairs in an array that sum up to a target value.
• Iterate through the array and store the frequency of each element in a hashmap.

• For each element, check if the difference between the target and the element exists in the hashmap.

• Increment the count of pairs if the difference is found in the hashmap.
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Q3. Binary search moderate problems of array ones increasing then decreasing
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Binary search can be used to solve moderate problems of arrays that are first increasing and then decreasing.
• Use binary search to find the peak element in the array, which marks the transition from increasing to decreasing.

• Divide the array into two parts based on the peak element and apply binary search on each part separately.

• Handle edge cases such as when the array is strictly increasing or strictly decreasing.

• Exampl
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Q4. System design for a web surfing utility
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Design a system for a web surfing utility
• Use a web crawler to gather data from websites

• Implement a search engine to retrieve relevant information

• Utilize a recommendation system to suggest related content

• Include user authentication and personalized settings

• Ensure scalability and performance for handling large amounts of data
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Q5. Smallest subarray having given target sum
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Find the smallest subarray in an array that has a given target sum.
• Use a sliding window approach to find the subarray with the target sum.

• Keep track of the current sum of elements in the window and adjust the window size accordingly.

• Start with a window of size 1 and expand it until the sum is greater than or equal to the target sum.

• Shrink the window from the left side while updating the smallest subarray length until t
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I was given a test which was not that difficult

Q1. Why are you leaving the current job
Ans. 
Seeking new challenges and growth opportunities in a more innovative environment.
• Looking for new challenges and opportunities for growth

• Interested in working in a more innovative environment

• Seeking a change in company culture or work-life balance
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Q2. What's the driving factor for you to join Altair
Ans. 
The innovative projects and collaborative work environment at Altair are the driving factors for me to join.
• Innovative projects: I am excited about the opportunity to work on cutting-edge projects that push the boundaries of technology.

• Collaborative work environment: I value teamwork and believe that working with talented individuals at Altair will help me grow professionally.

• Company culture: I have heard great things ...read more
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