20+ Associate Technology Interview Questions and Answers

Detect and remove loop in a singly linked list in place with O(n) time complexity and O(1) space complexity.

• Use Floyd's Tortoise and Hare algorithm to detect the loop in the linked list.

• Once the loop is detected, find the start of the loop using the algorithm.

• Adjust the pointers to remove the loop and return the modified linked list.

• Example: For input 5 2 and 1 2 3 4 5, the output should be 1 2 3 4 5.

Preemptive scheduling allows the operating system to interrupt a process, while non-preemptive scheduling does not.

• Preemptive scheduling allows the operating system to switch between processes without the cooperation of the processes themselves.

• Non-preemptive scheduling requires processes to voluntarily give up control of the CPU.

• Preemptive scheduling is more responsive and ensures fairness among processes, while non-preemptive scheduling may lead to longer response times for...read more

Specific times for Control-M Batch production jobs can be set using scheduling tools within the Control-M application.

• Use the Control-M application to access the scheduling tools

• Create job definitions with specific start times

• Set dependencies between jobs to control the order of execution

• Utilize calendars to define recurring schedules

• Monitor job status and make adjustments as needed

A horse starts with 1 carrot and increases its intake by 7 each day. Calculate when it will finish 100 carrots.

• Day 1: 1 carrot eaten (99 left)

• Day 2: 1 + 7 = 8 carrots eaten (91 left)

• Day 3: 8 + 7 = 15 carrots eaten (76 left)

• Continue this pattern until total carrots eaten reaches 100.

Microservice architecture allows for greater scalability and flexibility compared to monolith architecture.

• Microservices are smaller, independent components that can be developed and deployed separately

• Monoliths are a single, large application with tightly coupled components

• Microservices allow for easier maintenance and updates

• Monoliths can be simpler to develop and deploy initially

• Examples of microservice architecture include Netflix and Amazon

• Examples of monolith architectu...read more

ViewBag and ViewData are used to pass data from controller to view in MVC. ViewBag uses dynamic properties while ViewData uses dictionary.

• ViewBag is a dynamic object while ViewData is a dictionary object.

• ViewBag is a property of the Controller base class while ViewData is a property of the ViewDataDictionary class.

• ViewBag is used to pass data from controller to view while ViewData is used to pass data from controller to view and between views.

• Example of using ViewBag: ViewBag...read more

Pointers are variables that store memory addresses, enabling efficient data manipulation and dynamic memory management.

• Dynamic Memory Allocation: Pointers allow for the allocation of memory at runtime, useful in applications like databases.

• Data Structures: Pointers are essential in implementing linked lists, trees, and graphs, enabling efficient data organization.

• Function Arguments: Pointers can be used to pass large data structures to functions without copying, improving per...read more

I have used Wipro's electrical appliances, particularly their LED lighting solutions and smart home devices.

• Wipro's LED lights are energy-efficient and have a long lifespan.

• I have installed Wipro smart bulbs that can be controlled via a mobile app.

• Their electrical appliances are known for their durability and performance.

To access items of a Dictionary, use the key to retrieve the corresponding value.

• Use the key inside square brackets to access the value in a Dictionary.

• Example: dictionary['key'] will return the value associated with 'key'.

Use SELECT query in MySQL to select specific columns

• Use SELECT followed by the column names separated by commas

• Specify the table name after the keyword FROM

• Add any necessary conditions using WHERE clause if needed

Control-M Enterprise Manager components play a crucial role in managing and monitoring batch processing workflows.

• Control-M Server: Manages scheduling and monitoring of jobs

• Control-M Agent: Executes jobs on remote servers

• Control-M/EM GUI: Provides a user interface for managing workflows

• Control-M/EM Server: Manages communication between components

• Control-M/EM Reporting Facility: Generates reports on job status and performance

Interface defines a contract while abstract class provides partial implementation.

• Interface only contains method signatures while abstract class can have both abstract and non-abstract methods.

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

• Interfaces are used for loose coupling while abstract classes are used for code reusability.

• Example of interface: Comparable interface in Java.

• Example of abstract class: Animal class with abstract met...read more

Controllers in WebApi are used to handle incoming HTTP requests and provide appropriate responses.

• Controllers are responsible for handling specific HTTP requests and returning appropriate responses.

• They contain action methods that are invoked when a specific HTTP request is received.

• Controllers can also be used to implement authorization and authentication logic.

• Example: A UserController can handle HTTP requests related to user management such as creating, updating, and delet...read more

Syntax for integrating through List involves using loops to iterate over each element in the list.

• Use a for loop to iterate over each element in the list

• Access each element using the index in the loop

• Perform the integration operation on each element

As of October 2023, the CEO of Wipro is Thierry Delaporte, who has been leading the company since July 2020.

• Thierry Delaporte joined Wipro as CEO and Managing Director in July 2020.

• He has over 25 years of experience in the IT services industry.

• Before Wipro, he was the Chief Operating Officer at Capgemini.

• Delaporte is focused on driving Wipro's digital transformation strategy.

Wipro is a leading global information technology, consulting, and business process services company, founded by Azim Premji.

• Wipro was founded in 1945 by Mohamed Premji as a vegetable oil manufacturer.

• Azim Premji, the son of Mohamed Premji, transformed Wipro into a major IT services company in the 1980s.

• Wipro is publicly traded, meaning it has multiple shareholders rather than a single owner.

• As of now, Azim Premji is the chairman of Wipro and is one of the largest shareholders...read more

A self join in SQL allows a table to be joined with itself to compare rows within the same table.

• Self joins are used to compare rows in the same table.

• Example: To find employees who have the same manager, you can join the employee table with itself.

• Syntax: SELECT a.name, b.name FROM employees a JOIN employees b ON a.manager_id = b.id;

• Self joins can be used to find hierarchical data, like organizational structures.

A dictionary in programming is a collection of key-value pairs used to store and retrieve data.

• Syntax: {key1: value1, key2: value2, ...}

• Keys must be unique and immutable

• Values can be of any data type

• Access values using keys

3D arrays are used in various fields for data representation, simulations, and modeling complex structures.

• Medical Imaging: 3D arrays represent volumetric data from MRI or CT scans.

• Computer Graphics: Used to store 3D models and textures in video games.

• Scientific Simulations: Simulating physical phenomena like fluid dynamics in a 3D space.

• Robotics: Representing spatial data for navigation and obstacle avoidance.

• Geospatial Data: Storing 3D geographical information for mapping a...read more

Programming is the process of designing and building executable computer software to accomplish specific tasks.

• Involves writing code in programming languages like Python, Java, or C++.

• Used to create applications, websites, and software systems.

• Involves algorithms and data structures to solve problems efficiently.

• Example: A simple Python program to add two numbers.

• Can be used in various fields, including web development, data analysis, and artificial intelligence.

Wipro is a leading global information technology, consulting, and business process services company based in India.

• Strong focus on sustainability and corporate social responsibility, with initiatives like Wipro's 'Earthian' program.

• Diverse service offerings, including cloud computing, AI, and cybersecurity, catering to various industries.

• Global presence with operations in over 50 countries, allowing for a wide range of client engagement.

• Recognition for workplace culture, ofte...read more

Different types of join include inner join, outer join, left join, and right join.

• Inner join: Returns rows when there is a match in both tables

• Outer join: Returns all rows when there is a match in one of the tables

• Left join: Returns all rows from the left table and the matched rows from the right table

• Right join: Returns all rows from the right table and the matched rows from the left table