VP Engineering Interview Questions and Answers

Performa is a performance monitoring tool for HPE 3PAR storage arrays.

• Performa provides real-time monitoring of storage performance metrics.

• It helps identify performance bottlenecks and optimize storage performance.

• Performa can generate reports and alerts based on user-defined thresholds.

• It can also be used for capacity planning and trend analysis.

• Examples of performance metrics monitored by Performa include IOPS, late...read more

MongoDB database algorithms are used for efficient data storage, retrieval, and processing.

• MongoDB uses various algorithms for indexing, sharding, and aggregation.

• Indexing algorithms include B-tree, hash, and text search indexes.

• Sharding algorithms include range-based, hash-based, and zone-based sharding.

• Aggregation algorithms include map-reduce and aggregation pipeline.

• MongoDB also uses algorithms for query optimizati...read more

Quicksort has an average and best-case time complexity of O(n log n) and worst-case of O(n^2).

• Quicksort is a divide-and-conquer algorithm that recursively partitions an array into two sub-arrays based on a pivot element.

• The average and best-case time complexity is O(n log n) because each partition divides the array into roughly equal halves.

• The worst-case time complexity is O(n^2) when the pivot element is the smallest...read more