Dhansar Engineering Company Interview Questions and Answers

Synchronous and asynchronous are two different ways of executing tasks in a system.

• Synchronous execution blocks the program until a task is completed.

• Asynchronous execution allows the program to continue running while a task is being processed.

• Synchronous tasks are executed one after another in a sequential manner.

• Asynchronous tasks can be executed concurrently or in parallel.

• Synchronous communication is like making a phone call and waiting for the other person to respond.

• Asy...read more

Designing an end-to-end analytics solution for migrating to a cloud-based application with analytics capabilities.

• Understand the current data infrastructure and analytics requirements

• Evaluate cloud-based analytics platforms and choose the most suitable one

• Map out the data migration process from traditional systems to the cloud

• Design and implement data pipelines for ETL processes

• Develop and deploy analytics models and visualizations on the cloud platform

• Ensure data security an...read more

Polymorphism is the ability of an object to take on many forms. It allows objects of different classes to be treated as the same type.

• Polymorphism is a fundamental concept in object-oriented programming.

• It allows objects to be used interchangeably, as long as they belong to the same inheritance hierarchy.

• Polymorphism is achieved through method overriding and method overloading.

• Example: A base class 'Shape' with derived classes 'Circle' and 'Rectangle'. Both can be treated as ...read more

Concurrency is the ability of a system to execute multiple tasks simultaneously.

• Concurrency allows multiple tasks to be executed concurrently.

• It improves system performance and responsiveness.

• Concurrency can be achieved through multi-threading or parallel processing.

• Examples include running multiple applications on a computer, handling multiple user requests simultaneously, etc.

I prioritize my tasks by setting deadlines, categorizing by urgency/importance, and utilizing to-do lists.

• Setting deadlines for each task to ensure timely completion

• Categorizing tasks based on urgency and importance

• Utilizing to-do lists or task management tools to keep track of tasks

• Re-evaluating priorities as needed based on changing circumstances