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posted on 25 Jan 2025
I was interviewed in Dec 2024.
A standardized assessment that measures a person's skills, cognitive abilities, and potential to perform in a specific role.
I was interviewed in Dec 2024.
Data Analysis and Automation Testing.
Team work and communication
Balancing income and study is possible with proper time management and prioritization.
Prioritize tasks based on importance and deadlines
Create a study schedule that fits around work hours
Utilize breaks at work to study or review material
Consider part-time study options or online courses
Seek financial aid or scholarships to alleviate financial burden
I applied via Company Website and was interviewed in Dec 2024. There were 3 interview rounds.
Basic self evaluation test.
Handling class imbalance involves techniques like resampling, using different algorithms, and adjusting class weights.
Use resampling techniques like oversampling or undersampling to balance the classes.
Utilize algorithms that are robust to class imbalance, such as Random Forest, XGBoost, or SVM.
Adjust class weights in the model to give more importance to minority class.
Use evaluation metrics like F1 score, precision, r...
posted on 28 Nov 2024
Constructors are special methods in a class used to initialize objects. There are default, parameterized, copy, and static constructors.
Constructors have the same name as the class and do not have a return type.
Default constructors are automatically created by the compiler if no constructor is defined.
Parameterized constructors accept parameters to initialize object properties.
Copy constructors create a new object as a...
findElements method in Selenium returns a list of WebElements or an empty list if no elements are found.
findElements method returns a list of WebElements
If no elements are found, it returns an empty list
Return type is List
Webdriver is a tool used for automating web application testing.
Webdriver is a popular automation tool used for testing web applications.
It allows testers to automate interactions with a web browser.
Webdriver supports multiple programming languages such as Java, Python, and C#.
It can simulate user interactions like clicking buttons, entering text, and navigating through pages.
Webdriver is commonly used in QA automation...
Logic to find duplicate numbers and their count in a given list.
Iterate through the list and store each number in a hashmap with its count
If a number is already in the hashmap, increment its count
After iterating, check the hashmap for numbers with count greater than 1 to find duplicates
Factorial using recursion is a mathematical function that calculates the product of all positive integers up to a given number.
Define a function that takes an integer parameter n
Base case: if n is 0, return 1
Recursive case: return n multiplied by the factorial of n-1
Example: factorial(5) = 5 * factorial(4) = 5 * 4 * factorial(3) = 5 * 4 * 3 * factorial(2) = 5 * 4 * 3 * 2 * factorial(1) = 5 * 4 * 3 * 2 * 1 = 120
I applied via Company Website and was interviewed in Dec 2024. There were 2 interview rounds.
Joins in SQL are used to combine rows from two or more tables based on a related column between them.
Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.
INNER JOIN returns rows when there is at least one match in both 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 tabl...
Use the SQL query with ORDER BY and LIMIT to find the third highest salary.
Use the SQL query: SELECT DISTINCT Salary FROM Employees ORDER BY Salary DESC LIMIT 2, 1
The above query will return the third highest salary from the 'Employees' table
Make sure to replace 'Employees' and 'Salary' with the appropriate table and column names
I prioritize tasks, set clear expectations, utilize time management tools, and communicate effectively.
Prioritize tasks based on urgency and importance
Set clear expectations with clients regarding response times and availability
Utilize time management tools such as calendars and task lists
Communicate effectively with clients to provide updates and manage expectations
I prioritize issues based on impact, urgency, and complexity.
Assess the impact of each issue on the system or users
Consider the urgency of resolving each issue
Evaluate the complexity of fixing each issue
Prioritize critical issues that have high impact, urgency, and low complexity
Create a priority list based on these factors
posted on 2 Jan 2025
I applied via Approached by Company and was interviewed in Dec 2024. There were 3 interview rounds.
I applied via Company Website and was interviewed in Oct 2024. There were 4 interview rounds.
Basic Python, SQL, and Bash questions
Data pipeline design involves creating a system to efficiently collect, process, and analyze data.
Understand the data sources and requirements before designing the pipeline.
Use tools like Apache Kafka, Apache NiFi, or AWS Glue for data ingestion and processing.
Implement data validation and error handling mechanisms to ensure data quality.
Consider scalability and performance optimization while designing the pipeline.
Doc...
posted on 28 Nov 2024
HashMap is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values based on keys.
HashMap internally uses an array of linked lists to store key-value pairs.
When a key-value pair is added, the key is hashed to determine the index in the array where it will be stored.
If multiple keys hash to the same index, a linked list is used to handle collisions.
To retrieve a value, the key is hash...
Find anagrams from a string array
Iterate through each string in the array
Sort the characters of each string to create a key for comparison
Use a hashmap to group anagrams together
Return the grouped anagrams as arrays
A top view of a binary tree shows the nodes visible when looking at the tree from the top.
The top view of a binary tree is the set of nodes visible when looking at the tree from the top.
Nodes at the same horizontal distance from the root are considered at the same level.
Use a map to store the horizontal distance of each node and only keep the first node encountered at each horizontal distance.
Height of a binary tree is the maximum number of edges on the longest path from the root node to a leaf node.
Height of an empty tree is -1
Height of a tree with only one node is 0
Height of a binary tree can be calculated recursively by finding the height of left and right subtrees and adding 1 to the maximum of the two heights
I applied via Campus Placement
Solid Principles are a set of five design principles for writing clean, maintainable, and scalable code.
Single Responsibility Principle (SRP) - A class should have only one reason to change.
Open/Closed Principle (OCP) - Software entities should be open for extension but closed for modification.
Liskov Substitution Principle (LSP) - Objects of a superclass should be replaceable with objects of its subclasses without affe...
Design patterns are reusable solutions to common problems encountered in software design and development.
Design patterns provide a way to communicate solutions to common design problems
They help in making code more maintainable, scalable, and reusable
Examples include Singleton, Factory, Observer, and Strategy patterns
Our current project architecture follows a microservices design pattern with Docker containers and Kubernetes for orchestration.
Microservices architecture
Docker containers
Kubernetes for orchestration
I am interested in NCR because of its reputation for innovation and cutting-edge technology in the software industry.
NCR has a strong reputation for innovation and cutting-edge technology
I am excited about the opportunity to work on challenging projects at NCR
I believe NCR offers a great platform for career growth and development
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