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I applied via Referral and was interviewed before Sep 2019. There were 3 interview rounds.
I approach dynamic objects by analyzing their behavior and adapting my approach accordingly.
I start by understanding the nature of the dynamic object and its expected behavior
I then analyze its movement patterns and any potential obstacles or hazards
Based on this analysis, I adapt my approach to ensure safe and efficient interaction with the dynamic object
For example, when working with a moving conveyor belt, I would e...
Implicit and explicit wait are two types of wait in Selenium used to synchronize the test execution with the application.
Implicit wait is used to set a default waiting time for the web elements to load before throwing an exception.
Explicit wait is used to wait for a specific condition to occur before proceeding with the test execution.
Implicit wait is set globally for the entire test script while explicit wait is set f...
I applied via LinkedIn and was interviewed before Aug 2020. There were 4 interview rounds.
I applied via Company Website and was interviewed in Jul 2020. There were 4 interview rounds.
Java 8 introduced several new features including lambda expressions, streams, and default methods.
Lambda expressions allow for functional programming and concise code.
Streams provide a way to process collections of data in a parallel and functional manner.
Default methods allow for adding new functionality to interfaces without breaking existing implementations.
Method references provide a way to refer to methods without...
Customised immutable java class can be written by declaring all fields as final and not providing any setters.
Declare all fields as final
Do not provide any setters
Provide a constructor to initialize all fields
Override equals() and hashCode() methods
Make the class final
I applied via Referral and was interviewed in May 2021. There were 4 interview rounds.
I applied via Naukri.com and was interviewed before Oct 2022. There were 3 interview rounds.
Bigdata systems architecture involves distributed storage, processing, and analysis of large volumes of data.
Utilize distributed file systems like HDFS for storage
Use parallel processing frameworks like Apache Spark or Hadoop for data processing
Implement data pipelines for ETL processes
Leverage NoSQL databases like Cassandra or MongoDB for real-time data querying
Consider data partitioning and replication for fault tole
Big data system distribution for storage and compute involves partitioning data across multiple nodes for efficient processing.
Data is partitioned across multiple nodes to distribute storage and processing load.
Hadoop Distributed File System (HDFS) is commonly used for storage distribution.
Apache Spark utilizes a cluster computing framework for distributed computing.
Data locality is important to minimize data transfer ...
Design a system similar to YouTube for video sharing and streaming
Implement user authentication and authorization for uploading and viewing videos
Create a database to store video metadata, user information, and comments
Develop a recommendation algorithm based on user preferences and viewing history
Utilize a content delivery network (CDN) for efficient video streaming
Include features like video monetization, live stream
I applied via Naukri.com and was interviewed before Apr 2020. There were 3 interview rounds.
SCD Type 2 is a technique used to track historical changes in data over time in a data warehouse.
SCD Type 2 maintains a separate row for each change in data, with a start and end date.
It requires a surrogate key to uniquely identify each row.
Informatica provides a built-in SCD Type 2 transformation to implement this technique.
Example: tracking changes in customer addresses over time.
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