Dish Network Tableau Developer Interview Questions and Answers

Basic questions about coding

Q1. Basic hr questions
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Q2. Salary discussion
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Q1. Basic DSA round
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Q1. Past projects and skills
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It has basic aptitude question

If you unable to clear apti then there is a option for GD

Q1. Basic question on technical stuffs are asked This is the L1 round. If u clear this then u go to L2 round.
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Q2. Oops, Dsa, Dbms, Html,Css
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Q1. This the final technical round which is called the L2 round
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Q1. The HR focus on your communication skills and why u want to join the company and personal stuffs.
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Technical aspects about linked list,trees, stacks

Topic related to humanities

I was given a case study to write multiple outputs by lookinginto a program.

Q1. What is MFS in abinitio?
Ans. 
MFS in Abinitio stands for Multi-File System, which is a feature that allows Abinitio graphs to read/write data from multiple files simultaneously.
• MFS allows parallel processing of data from multiple files in Abinitio graphs

• It helps in improving performance by distributing the workload across multiple files

• MFS can be configured to read/write data from/to different file systems or locations

• Example: Using MFS, a graph ca...read more
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Q2. What is MFS in abinitio
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MFS in Abinitio stands for Multi-File System, which is a parallel processing framework for handling large volumes of data.
• MFS allows for efficient processing of large data sets by distributing the workload across multiple files and nodes.

• It provides fault tolerance and scalability by replicating data across multiple nodes.

• MFS is commonly used in Abinitio graphs to optimize data processing performance.

• It helps in improv...read more
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Q1. JavaScript prototype sorting function
Ans. 
JavaScript prototype sorting function for arrays of strings
• Use the Array.prototype.sort() method to sort an array of strings

• Pass a compare function to specify the sorting order

• Example: ['banana', 'apple', 'cherry'].sort((a, b) => a.localeCompare(b))
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Q2. Promise polyfill from scratch
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Creating a Promise polyfill from scratch involves implementing the Promise API using callbacks and handling asynchronous operations.
• Understand the Promise API and its methods (resolve, reject, then, catch)

• Implement a constructor function that takes an executor function as an argument

• Handle asynchronous operations using callbacks and setTimeout

• Implement the then and catch methods to handle success and error cases respec
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Q3. React hooks -useEffect useMemo
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Q1. Session Management in applications
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Session management is the process of securely managing user sessions in web applications.
• Use cookies or tokens to track user sessions

• Implement session timeout to prevent unauthorized access

• Store session data securely on the server side

• Use HTTPS to encrypt session data during transmission
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Q2. Why react is fast than other frameworks
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React is faster than other frameworks due to its virtual DOM, efficient diffing algorithm, and use of server-side rendering.
• React uses a virtual DOM which allows it to update only the necessary components instead of re-rendering the entire page.

• React's efficient diffing algorithm compares the virtual DOM with the actual DOM to minimize updates and improve performance.

• React supports server-side rendering, which can impr...read more
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