Tranistics Data Technologies Interview Questions and Answers

Q1. Concat two LinkedList without using any space and in O(n) time
Ans. 
Concatenate two LinkedList without using extra space in O(n) time
• Traverse the first LinkedList and update the last node's next pointer to the head of the second LinkedList

• Return the head of the first LinkedList as the concatenated LinkedList
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Q2. 2 Sql Queries -1] rank window function 2] join
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Q3. Project focused
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Q1. Discussion about Interfaces
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Q2. Discussion about Dependency Injection in .net
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Q3. Multiple .net questions
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Q1. Create Data structure to store file system like tree. it should get used for file and folder both.? find count of files in folder ?
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Q2. Redis cache system
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Q3. System designing Discussion
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Q4. Dependency Injection discussion
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Q5. Project in depth discussion
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Q1. Project Focused questions
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Q2. What are your contributions in projects
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Normal basic question train and few Logic

Q1. What is Continue?
Ans. 
Continue is a keyword in programming that is used to skip the current iteration of a loop and continue with the next iteration.
• Continue is used in loops like for, while, and do-while to skip the current iteration and move to the next one.

• It is often used to skip certain elements in an array or to avoid executing specific code under certain conditions.

• Example: for(int i=0; i<5; i++) { if(i==2) { continue; } System.out.p
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Q2. Break, if else, while
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Q1. Question based on CV
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1 hour - NodeJS Based

Q1. High Level System Design
Ans. 
High level system design involves creating an overall architecture for a software system.
• Identify the main components of the system

• Define the interactions between the components

• Consider scalability, reliability, and performance

• Use diagrams to visualize the design

• Example: Designing a social media platform with user profiles, posts, and messaging functionality
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Q1. Low Level System Design
Ans. 
Low level system design involves designing the internal components of a software system.
• Focus on the architecture of the system at a detailed level

• Consider how different components interact with each other

• Optimize for performance and efficiency

• Think about scalability and maintainability

• Examples: designing a database schema, creating algorithms for data processing
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Q1. Culture Fit Round - Strength, Challenges etc
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It was Machine test, i had to make a project and connect it to Database and submit details in database table from form.

Q1. Technical verbal Interview, question were related to JavaScript, Json, JQuery, and how to perform click and other event on click, on change etc, and how to get text content entered in text box, mostly rel...read more
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Q2. What is Collection Framework?
Ans. 
Collection Framework is a unified architecture for representing and manipulating collections of objects in Java.
• It provides interfaces (List, Set, Queue, etc.) and classes (ArrayList, HashSet, PriorityQueue, etc.) to store and manipulate groups of objects.

• Collections can be easily sorted, searched, and iterated using methods provided by the Collection Framework.

• Example: ArrayList is a class that implements the List int...read more
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Q3. What is RestApi?
Ans. 
RestApi is a set of rules and conventions for building and interacting with web services using HTTP methods.
• RestApi stands for Representational State Transfer Application Programming Interface.

• It allows communication between different software systems over the internet.

• RestApi uses standard HTTP methods like GET, POST, PUT, DELETE for data manipulation.

• JSON or XML formats are commonly used for data exchange in RestApi.

• ...read more
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Q4. How to add one ArrayList object to another, which method is used to achieve this. Ans:- By using addAll() Method

Ans. 

The addAll() method is used to add all elements of one ArrayList to another.

• Use the addAll() method to add all elements of one ArrayList to another

• Syntax: list1.addAll(list2);

• Example: ArrayList list1 = new ArrayList<>(); list1.addAll(Arrays.asList(1, 2, 3));

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