Tecplix Technologies L2 Engineer Interview Questions and Answers

Q1. Role check
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Q2. Tech stackP
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Q1. Project based questions
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Q2. AWS related questions
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Q1. Architecture questions
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Q1. Behaviour questions
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Q1. What is network
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A network is a collection of computers, servers, mainframes, network devices, and other devices connected to each other to share resources and communicate.
• Networks can be wired or wireless

• They can be local (LAN), wide (WAN), or global (Internet)

• Networks use protocols like TCP/IP to facilitate communication

• Examples of networks include LANs in offices, WANs connecting branch offices, and the Internet
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Q2. What is the dhcp
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DHCP stands for Dynamic Host Configuration Protocol, used to automatically assign IP addresses to devices on a network.
• DHCP is a network protocol that automatically assigns IP addresses to devices on a network

• It helps in managing and conserving IP addresses by dynamically allocating them as needed

• DHCP servers are responsible for leasing IP addresses to clients for a specific period of time

• DHCP also provides other netwo...read more
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Q1. - Coin change Variation - Behaviour based questions - Puzzle
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Q1. - 0-1 knapsack and print its weight - Past Experience and Project
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0-1 knapsack problem involves selecting items to maximize value within a weight constraint.
• 0-1 knapsack is a classic optimization problem where items have a weight and value, and the goal is to maximize the total value while staying within a weight limit.

• Dynamic programming is commonly used to solve the 0-1 knapsack problem efficiently.

• Example: Given items with weights [2, 3, 4, 5] and values [3, 4, 5, 6], and a knapsa...read more
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Q1. - SQL Joins - Rest API Paging - Frontend Questions - Past Experience
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Q1. Introduction about yourself.
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I am a software engineer with 5 years of experience in developing web applications.
• I have a strong proficiency in programming languages like Java, Python, and JavaScript.

• I have experience in working with frameworks like Spring Boot and Django.

• I am skilled in front-end development using HTML, CSS, and JavaScript.

• I have worked on database management systems like MySQL and MongoDB.

• I have knowledge of version control syste...read more
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Q2. Hashmap internal working
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Q1. Array question's, string basic, oops java, exception handling, collection, multi threading, hash map, system design, spring boot, singletons, seralisation and deserialisation in java ,synchronous
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Q1. Spring boot, database querying, indexing, rest API
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Q1. Palindrome program, why you want to join, about last company
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It was a test to create a login page and connect to database

Q1. What is difference between interface and abstract class
Ans. 
Interface is a contract with no implementation, while abstract class can have some implementation.
• Interface cannot have any implementation, only method signatures

• Abstract class can have both abstract methods and concrete methods

• A class can implement multiple interfaces but can only inherit from one abstract class

• Interfaces are used to achieve multiple inheritance in Java
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Q2. What are main concepts of oops
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Main concepts of OOP include encapsulation, inheritance, polymorphism, and abstraction.
• Encapsulation: Bundling data and methods that operate on the data into a single unit (class).

• Inheritance: Ability of 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 implementation details and showing only the nec
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