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I applied via Company Website and was interviewed in Dec 2024. There were 2 interview rounds.
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Spark optimization techniques improve performance and efficiency of data processing.
Partitioning data to distribute workload evenly
Caching frequently accessed data to avoid recomputation
Using appropriate data formats like Parquet for efficient storage and retrieval
Optimizing shuffle operations by tuning parameters like shuffle partitions
Avoiding unnecessary data shuffling by using broadcast joins
Supervised learning is a type of machine learning where the model is trained on labeled data to make predictions or decisions.
Uses labeled training data to learn the mapping between input and output variables
The model is trained on a dataset where the correct output is known
Examples include classification and regression tasks
Overfitting occurs when a model learns the noise in the training data rather than the underlying pattern.
Overfitting happens when a model is too complex and captures noise in the training data.
It leads to poor generalization on new, unseen data.
Techniques to prevent overfitting include cross-validation, regularization, and early stopping.
Example: A decision tree with too many branches that perfectly fits the training d
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Optimizations in Databricks involve tuning cluster configurations, optimizing code, and utilizing caching.
Tune cluster configurations to allocate resources efficiently
Optimize code by using efficient algorithms and data structures
Utilize caching to store intermediate results and avoid recomputation
Broadcast join is used when one of the tables is small enough to fit in memory of all the nodes in the cluster, reducing shuffle and improving performance.
Broadcast join is used to optimize join operations by broadcasting the smaller table to all nodes in the cluster.
It is beneficial when one of the tables is small enough to fit in memory of all nodes, reducing the need for shuffling data across the network.
Broadcast j...
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I applied via Job Fair
Group discussion is a team work
I applied via Company Website and was interviewed in Jan 2024. There was 1 interview round.
I am a passionate software developer with experience in building web applications using various technologies.
Experienced in developing web applications using HTML, CSS, JavaScript, and frameworks like React and Angular
Proficient in backend development with Node.js and databases like MongoDB and MySQL
Familiar with version control systems like Git and deployment tools like Heroku
Strong problem-solving skills and ability ...
OTC cycle involves ordering, receiving, invoicing, and payment. Approval flow of invoice includes verification, authorization, and processing.
OTC cycle includes ordering products, receiving them, invoicing the customer, and receiving payment.
Approval flow of invoice involves verification of details, authorization of payment, and processing for payment.
Example: Customer places an order for OTC product, receives the prod...
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