Tredence Data Engineer Interview Questions, Process, and Tips

1 good coding question and 33 mcqs

Q1. Easy questions are asked
Add your answer
Q2. Like create a database of the collages composes of students and professors
Ans. 
Create a database to store information about colleges, students, and professors.
• Create tables for colleges, students, and professors

• Include columns for relevant information such as name, ID, courses, etc.

• Establish relationships between the tables using foreign keys

• Use SQL queries to insert, update, and retrieve data

• Consider normalization to avoid data redundancy
Answered by AI
Add your answer

Q1. Some hr questions
Add your answer
Q2. Project discussions
Add your answer

Q1. Hr questions about family
Add your answer

Q1. What is data bricks
Ans. 
Data bricks is a unified analytics platform that provides a collaborative environment for data scientists, engineers, and analysts.
• Data bricks simplifies the process of building data pipelines and training machine learning models.

• It allows for easy integration with various data sources and tools, such as Apache Spark and Delta Lake.

• Data bricks provides a scalable and secure platform for processing big data and running ...read more
Answered by AI
Add your answer
Q2. How do you optimize your code?
Ans. 
Optimizing code involves identifying bottlenecks, improving algorithms, using efficient data structures, and minimizing resource usage.
• Identify and eliminate bottlenecks in the code by profiling and analyzing performance.

• Improve algorithms by using more efficient techniques and data structures.

• Use appropriate data structures like hash maps, sets, and arrays to optimize memory usage and access times.

• Minimize resource us...read more
Answered by AI
Add your answer
Q3. What is SQL window function?
Ans. 
SQL window function is used to perform calculations across a set of table rows related to the current row.
• Window functions operate on a set of rows related to the current row

• They can be used to calculate running totals, moving averages, rank, etc.

• Examples include ROW_NUMBER(), RANK(), SUM() OVER(), etc.
Answered by AI
Add your answer

Q1. Salary expectations?
Add your answer
Q2. When can you join
Add your answer

Half hour with spark python azure databricks

Q1. Architecture databricks
Add your answer
Q2. Sql related questions
Add your answer

Q1. Copy activity in ADF
Add your answer
Q2. Delta table, unity catalog , delta live table in Azure databricks
Add your answer

Q1. Copy activity, Lookup, get metadata, if else, for each activity in ADF
Add your answer
Q2. Conceptual ETL Questions like coalesce and repartition, cache, persist etc.
Add your answer