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Photon Interactive AWS Data Engineer Interview Questions and Answers
Photon Interactive AWS Data Engineer Interview Experiences
1 interview found
I applied via Naukri.com and was interviewed in Jul 2024. There was 1 interview round.
(3 Questions)
- Q1. Explain how do you handle large data processing in Pyspark
- Ans.
Large data processing in Pyspark involves partitioning, caching, and optimizing transformations for efficient processing.
Partitioning data to distribute workload evenly across nodes
Caching intermediate results to avoid recomputation
Optimizing transformations to minimize shuffling and reduce data movement
- Q2. Explain how do you implement data governance in your company
- Ans.
Data governance is implemented through policies, processes, and tools to ensure data quality, security, and compliance.
Establish data governance policies and procedures to define roles, responsibilities, and processes for managing data
Implement data quality controls to ensure accuracy, completeness, and consistency of data
Utilize data security measures such as encryption, access controls, and monitoring to protect sens...
- Q3. Name any 2 data lineage tools
- Ans.
Two data lineage tools are Apache Atlas and Informatica Enterprise Data Catalog.
Apache Atlas is an open source tool for metadata management and governance in Hadoop ecosystems.
Informatica Enterprise Data Catalog provides a comprehensive data discovery and metadata management solution.
Skills evaluated in this interview
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AWS Devops Engineer Interview Questions & Answers
HTC Global Services
Anonymous
posted on 3 Mar 2025
Selected
I was interviewed in Feb 2025.
(5 Questions)
- Q1. No proper questions
- Q2. They trick you if you now answers
- Q3. What is java and help me understand your project worked on Maven tool
- Q4. What are the challenges you havefaced in your previous project
- Q5. Spme Troubleshooting scenarios on CI CD part
Interview Preparation Tips
I applied via Naukri.com and was interviewed in Nov 2024. There was 1 interview round.
(2 Questions)
- Q1. Tableau Questions 1. Difference between dimensions and measures. 2. What is RLS? 3. What are the functions you can assign in RLS? 4. Explain what is drill down approach. 5. What is LOD? 6. What is a calcul...
- Q2. SQL Questions 1. In employee table find the 2nd highest salary. 2. Find the highest average salary in department 3. Given two tables(sales & product) find total sales per category 4. Two questions to find ...
Interview Preparation Tips
- SQL
- Tableau
- DBMS
I applied via Naukri.com and was interviewed in Oct 2024. There were 2 interview rounds.
(2 Questions)
- Q1. Azure Scenario based questions
- Q2. Pyspark Coding based questions
(2 Questions)
- Q1. ADF, Databricks related question
- Q2. Spark Performance problem and scenarios
- Ans.
Spark performance problems can arise due to inefficient code, data skew, resource constraints, and improper configuration.
Inefficient code can lead to slow performance, such as using collect() on large datasets.
Data skew can cause uneven distribution of data across partitions, impacting processing time.
Resource constraints like insufficient memory or CPU can result in slow Spark jobs.
Improper configuration settings, su...
Skills evaluated in this interview
I applied via Campus Placement
Based on SQL , statistics , python , cognitive
(2 Questions)
- Q1. Based on AI/Ml and based on cv
- Q2. Based on projects
(2 Questions)
- Q1. How to handle toxic work culture?
- Ans.
Address toxic work culture by open communication, setting boundaries, seeking support, and considering leaving if necessary.
Open communication with colleagues and management about issues
Set boundaries to protect your mental and emotional well-being
Seek support from HR, a mentor, or a therapist if needed
Consider leaving the toxic work environment if the situation does not improve
- Q2. 5 strength and weakness
Interview Preparation Tips
(1 Question)
- Q1. Spark basic question , hive related questions.
Interview Preparation Tips
(1 Question)
- Q1. What is Databricks, and how does it differ from Azure Data Factory?
I applied via LinkedIn and was interviewed in Jul 2024. There were 2 interview rounds.
It was pair programming round where we need to attempt a couple of Spark Scenario along with the Interviewer. You will have a boiler plate code with some functionalities to be filled up. You will be assessed on writing clean and extensible code and test cases.
(1 Question)
- Q1. Questions will be based on the Project where they try to assess the depth of understading you have on your project, data quality checks, handling failure scenarios, reasoning behind choice of tech stack
Interview Preparation Tips
For Second round, Spark, Cloud Data Processing Components and being thorough with your previous experience will go a long way.
I applied via Naukri.com and was interviewed in Oct 2024. There was 1 interview round.
(2 Questions)
- Q1. Incremental load in pyspark
- Ans.
Incremental load in pyspark refers to loading only new or updated data into a dataset without reloading the entire dataset.
Use the 'delta' function in pyspark to perform incremental loads by specifying the 'mergeSchema' option.
Utilize the 'partitionBy' function to optimize incremental loads by partitioning the data based on specific columns.
Implement a logic to identify new or updated records based on timestamps or uni...
- Q2. Drop duplicates
Skills evaluated in this interview
Selected
I applied via Campus Placement and was interviewed in Aug 2024. There were 2 interview rounds.
Java and sql questions
Simple java program for find factorial and prime number
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