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NTV Telugu Interview Questions and Answers

Updated 8 Feb 2025
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Q1. What are the different types of data structures available?

Ans.

Different types of data structures include arrays, linked lists, stacks, queues, trees, and graphs.

  • Arrays: store elements of the same data type in contiguous memory locations

  • Linked lists: elements are stored in nodes with pointers to the next node

  • Stacks: last in, first out data structure

  • Queues: first in, first out data structure

  • Trees: hierarchical data structure with a root node and child nodes

  • Graphs: nodes connected by edges to represent relationships

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Q2. How do you gain experience in data analysis?

Ans.

Gain experience in data analysis through education, internships, projects, and continuous learning.

  • Pursue a degree in a related field such as statistics, mathematics, or computer science.

  • Participate in internships or co-op programs to gain hands-on experience.

  • Work on data analysis projects independently or as part of a team.

  • Take online courses or attend workshops to learn new tools and techniques.

  • Join data analysis communities or forums to network and learn from others.

  • Contin...read more

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Q3. What is your experience in data analysis? 3 years experience

Ans.

I have 3 years of experience in data analysis.

  • Utilized various statistical tools and software for data analysis

  • Performed data cleaning, transformation, and visualization

  • Developed predictive models and conducted trend analysis

  • Worked on projects involving large datasets from diverse sources

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Q4. What do you know about E - commerce

Ans.

E-commerce refers to buying and selling goods or services online.

  • E-commerce involves online transactions between businesses and consumers.

  • Common examples include Amazon, eBay, and Alibaba.

  • It allows for convenient shopping, comparison of products, and secure payment methods.

  • E-commerce platforms often use data analytics to personalize user experiences and improve sales.

  • Mobile commerce (m-commerce) is a growing trend in e-commerce, with transactions conducted via mobile devices.

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Q5. What is coustomer service

Ans.

Customer service is the provision of assistance and support to customers before, during, and after a purchase.

  • It involves addressing customer inquiries and complaints

  • Providing information about products or services

  • Resolving issues and ensuring customer satisfaction

  • Examples include phone support, email support, live chat, and in-person assistance

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Q6. What is a data structure?

Ans.

A data structure is a way of organizing and storing data in a computer so that it can be accessed and modified efficiently.

  • Data structures define the way data is organized and stored in memory.

  • Examples include arrays, linked lists, stacks, queues, trees, and graphs.

  • Different data structures are used for different purposes, such as optimizing search or insertion operations.

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Q7. Find nth maximum salary from table

Ans.

Use SQL query with ORDER BY and LIMIT to find nth maximum salary from table.

  • Use SQL query like SELECT salary FROM table_name ORDER BY salary DESC LIMIT n-1, 1 to find nth maximum salary.

  • Replace table_name with actual table name and n with the desired nth value.

  • For example, SELECT salary FROM employees ORDER BY salary DESC LIMIT 2, 1 will give you the 2nd maximum salary.

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Q8. What is algorithm

Ans.

An algorithm is a set of instructions designed to perform a specific task or solve a particular problem.

  • An algorithm is a step-by-step procedure for solving a problem or accomplishing a task.

  • It can be represented using flowcharts, pseudocode, or programming languages.

  • Algorithms are used in various fields such as computer science, mathematics, and engineering.

  • Examples include sorting algorithms like bubble sort, searching algorithms like binary search, and machine learning alg...read more

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Q9. Difference between List and tuple

Ans.

List is mutable, tuple is immutable in Python.

  • List can be modified after creation, tuple cannot

  • List uses square brackets [], tuple uses parentheses ()

  • List is used for collections of items that may change, tuple for fixed collections

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