NeST Digital Interview Questions, Process, and Tips

Q1. ELK Stack experience
Ans. 
Experience with ELK Stack for log management and analysis
• Utilized Elasticsearch for indexing and searching log data

• Used Logstash for log collection, parsing, and enrichment

• Employed Kibana for visualization and analysis of log data
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Q2. Kafka algorithms
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Q1. Self introduction
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Q1. Technology based questions
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Q2. Php java based questions
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MCQ and 2 coding questions were there.

Q1. Basic programming related questions.
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Q1. Regular HR questions.
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Q1. Embedded system related questions
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Q2. Bit manipulation
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Q3. Coding questions
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Q1. Embedded system related questions.
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Q1. Personal and professional questions
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Comparatively difficult

Q1. Basic Questions
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Q2. Oops concepts and there explanation
Ans. 
Oops concepts are fundamental principles of object-oriented programming that help in designing and implementing software solutions.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Allowing a class to inherit properties and behavior from another class.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex imple...read more
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Q1. Basic Questions
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The first round of the interview consists of an aptitude test and a coding test. The aptitude test includes 10 questions that cover basic mathematics, English grammar, reasoning, and programming. Additionally, there is one question specifically for the coding test, and candidates can use their preferred programming language to answer it. The time allotted for the 10 aptitude questions is 20 minutes, while the coding test has a duration of 30 minutes.

Q1. What is oops? Explain different types of oops?
Ans. 
OOPs stands for Object-Oriented Programming. It is a programming paradigm based on the concept of objects.
• OOPs is based on four main principles: Inheritance, Encapsulation, Abstraction, and Polymorphism.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation refers to the bundling of data with the methods that operate on that data.

• Abstraction allows hiding the complex implementati...read more
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Q2. What is difference between for loop and while loop?
Ans. 
For loop is used when the number of iterations is known, while loop is used when the condition is true.
• For loop is used when the number of iterations is known beforehand.

• While loop is used when the condition needs to be checked before each iteration.

• For loop is more concise and easier to read for simple iterations.

• While loop is more flexible as the condition can be changed within the loop.

• Example: for(int i=0; i<5; ...read more
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