Dish Infra Services Interview Questions and Answers

English, Quant & Reasoning- 3 section, each section 15 que, Total 45 minutes & 45 questions, cut off for each section

Q1. Java What is JVM,JRE,JDK? what is the difference between class and instance variable in java? what is string Pool? write a code in java(prefer a good standard question) Web development if you have inter...read more
Ans. 
To build a web application, I would use a combination of front-end technologies like HTML, CSS, and JavaScript, along with back-end technologies like Node.js and MongoDB.
• Use HTML for structuring the content of the web pages

• Use CSS for styling the web pages and making them visually appealing

• Use JavaScript for adding interactivity to the web pages and handling user input

• Use Node.js for server-side scripting and handling ...read more
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Q2. If you have azure certification what is azure, what is Azure Blob Storage, What is ARM, what is horizontal Scaling?
Ans. 
Azure is a cloud computing platform by Microsoft. Azure Blob Storage is a service for storing large amounts of unstructured data. ARM stands for Azure Resource Manager, used for managing resources in Azure. Horizontal scaling is increasing the number of instances of a service to distribute load.
• Azure is a cloud computing platform by Microsoft

• Azure Blob Storage is a service for storing large amounts of unstructured data

• ...read more
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Q1. Why cse? explain a project (they might ask about a project in your resume)
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Q2. How you solved the problems that you have faced while working on projects?
Ans. 
I approach problems by breaking them down into smaller parts, analyzing root causes, seeking input from team members, and implementing solutions systematically.
• Identify the root cause of the problem

• Break down the problem into smaller parts

• Seek input from team members for different perspectives

• Implement solutions systematically

• Learn from the experience to prevent similar issues in the future
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Q1. Introduction Family Background Do you have any placement/internship offers in your hand? if so, why Ericsson At last, they will tell you about stipend, role
Ans. 
Yes, I have internship offers from Ericsson due to their reputation for innovation and cutting-edge technology.
• I have received internship offers from Ericsson because of their reputation for innovation and cutting-edge technology.

• I am excited about the opportunity to work with a global leader in telecommunications.

• I believe that interning at Ericsson will provide me with valuable experience and skills that will benefit
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Q1. Basic techno managerial questions on tech you worked on work, interests, challenges you faced. Was fairly short.
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Initially had a string based coding problem. Then was asked technical questions and then had a small break before doing system design with same interviewer for building book my show system and db schema.

Q1. Had a discussion with hiring manager on expectations, salary and growth.
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It was basic coding to test the Python skills like reading data from local and uploading in cloud then some basic dag related questions

Q1. Clustering and partition difference in data warehousing solutions
Ans. 
Clustering involves grouping similar data together, while partitioning involves dividing data into smaller, manageable sections.
• Clustering is used to group similar data points together based on certain criteria, such as customer segments or product categories.

• Partitioning involves dividing a large dataset into smaller, more manageable sections for easier data retrieval and processing.

• Clustering is often used for data a...read more
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Q2. What are the different approaches to Optimising SQL
Ans. 
Different approaches to optimizing SQL include indexing, query optimization, and database design.
• Use indexing to improve query performance

• Optimize queries by avoiding unnecessary joins and using appropriate functions

• Design the database schema efficiently to reduce redundancy and improve data retrieval speed
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Q3. Spark and it’s architecture
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Q4. Finding the count of Item bought by an customer from Flipkart during a year excluding February
Ans. 
To find the count of items bought by a customer from Flipkart during a year excluding February, you need to aggregate the data and filter out February transactions.
• Aggregate the data by customer and item purchased

• Filter out transactions from February

• Count the number of items bought by each customer
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Q1. What is Object-Oriented Programming (OOP), and can you explain its fundamental concepts?
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Q2. What is the definition of an array, and what are the different types of arrays?
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Q3. What is the clr
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The content is based on HTML, Windows, and ADO.NET.

Q1. What motivates you to pursue this job?
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Q2. What is your expected salary?
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