NCR Corporation Software Quality Engineer 2 Interview Questions and Answers

Average to easy difficulty level.

Q1. Java code of string manipulation
Ans. 
String manipulation in Java involves various methods like substring, concat, replace, etc.
• Use substring() to extract a part of the string

• Use concat() to concatenate two strings

• Use replace() to replace a specific character or substring in a string
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Q2. What is the Java code for various types of sorting algorithms?
Ans. 
Various sorting algorithms in Java code
• Bubble Sort: int[] arr = {5, 2, 8, 1, 3}; Arrays.sort(arr);

• Selection Sort: int[] arr = {5, 2, 8, 1, 3}; Arrays.sort(arr);

• Insertion Sort: int[] arr = {5, 2, 8, 1, 3}; Arrays.sort(arr);

• Merge Sort: int[] arr = {5, 2, 8, 1, 3}; Arrays.sort(arr);

• Quick Sort: int[] arr = {5, 2, 8, 1, 3}; Arrays.sort(arr);
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Q3. Sql query and topics related to joins.
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Q1. About yourself and family
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Q2. What do you know about the company?
Ans. 
The company is a leading software development firm specializing in creating innovative solutions for various industries.
• Specializes in creating innovative software solutions

• Works with clients from various industries

• Known for high-quality and reliable products

• Has a strong team of software engineers and developers
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Q3. Can you provide examples of real-life scenarios where you handled conflicts with either a colleague or a manager?
Ans. 
Handled conflicts by addressing issues directly, seeking compromise, and maintaining professionalism.
• Addressed a disagreement with a colleague by scheduling a one-on-one meeting to discuss concerns and find common ground.

• Resolved a conflict with a manager by actively listening to their perspective, providing feedback, and working together to find a solution.

• Maintained professionalism during conflicts by staying calm, r...read more
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Q4. What actions would you take if your manager does not approve your product idea, and how would you attempt to persuade them?
Ans. 
I would gather more data to support my idea, present a compelling case to my manager, and be open to feedback and compromise.
• Gather data to support the idea, such as market research, user feedback, or cost-benefit analysis.

• Prepare a well-structured presentation highlighting the potential benefits of the product idea.

• Listen to the manager's concerns and feedback, and be open to making adjustments or compromises.

• Seek sup...read more
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Q1. What is the Singleton pattern ? in how many ways can this pattern be broken ?
Ans. 
Singleton pattern ensures a class has only one instance and provides a global point of access to it.
• Singleton pattern can be implemented by making the constructor private and providing a static method to access the instance.

• The pattern can be broken by using reflection to access the private constructor and create multiple instances.

• Another way to break the Singleton pattern is by using multiple class loaders in Java.

• Th...read more
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Q2. What is the internal implementation of hashmap? Let's assume that you want to store duplicate keys in the hashmap, how can we achieve the same in hashmap ?
Ans. 
HashMap internally uses an array of linked lists to store key-value pairs. To store duplicate keys, we can use a custom implementation of HashMap.
• HashMap internally uses an array of linked lists to handle collisions.

• To store duplicate keys, we can create a custom HashMap implementation that allows multiple values for the same key.

• One approach is to use a HashMap with values as lists, where each key can have multiple va
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Q1. What microservices patterns are you aware ? let's assume that there is a microservice based architecture and service A is calling service B which in turn service C. If service b fails, how will you manage ...read more
Ans. 
Use compensating transactions and distributed tracing for managing transaction and logging in case of service B failure.
• Implement compensating transactions to rollback changes made by service B in case of failure.

• Use distributed tracing to track the flow of requests and identify where the failure occurred.

• Implement retry mechanisms to handle transient failures in service B.

• Use circuit breakers to prevent cascading fail...read more
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Q2. System Design question : Design a booking wesite for.eg: bookin.com ?
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Q1. Questions on Jetpack compose, kotlin, hilt, permission, Testing,
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Q1. Questions on mvvm, clean architecture.
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Q1. Client round with questions on android permission, Android security
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Q1. Salary discussed
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Basic aptitudes question in online test

Two coding Q online test

Q1. Resume bsic Q asked
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Q2. Oops question basic theory
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Q1. One coding question asked to solve on paper of arrays
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Q2. Basic questions from resume
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Q1. Relocating related questions
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Q2. Why u want to join global logic
Ans. 
I want to join Global Logic because of their reputation for cutting-edge technology solutions and collaborative work environment.
• Global Logic is known for their innovative technology solutions

• I am impressed by the collaborative work environment at Global Logic

• I believe Global Logic offers great opportunities for professional growth and development
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Aptitude, core concepts and a code

Q1. What is the one thing you learnt from college club?
Ans. 
I learned the importance of teamwork and collaboration from my college club.
• Developed strong communication skills by working with diverse group of individuals

• Learned how to delegate tasks effectively to achieve common goals

• Gained experience in problem-solving and conflict resolution through group projects
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Q2. What is the one thing you want to expereince?
Ans. 
I want to experience living in a different country and immersing myself in a new culture.
• Traveling to a foreign country and learning about their customs and traditions

• Trying new foods and experiencing different ways of life

• Making friends with locals and exploring the local attractions
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Q1. Difference between relational and non relational dbms
Ans. 
Relational DBMS stores data in tables with predefined relationships, while non-relational DBMS stores data in flexible, schema-less formats.
• Relational DBMS uses structured query language (SQL) for querying data

• Non-relational DBMS can store data in various formats like key-value pairs, document-based, graph databases

• Relational DBMS ensures data integrity through normalization and constraints

• Non-relational DBMS offers be...read more
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Q2. Difference betweeen class,abstract class,interface in python
Ans. 
Class is a blueprint for creating objects, abstract class cannot be instantiated and can have abstract methods, interface is a contract for classes to implement certain methods.
• Class is a blueprint for creating objects with attributes and methods.

• Abstract class cannot be instantiated and can have abstract methods that must be implemented by subclasses.

• Interface is a contract for classes to implement certain methods, bu
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Q3. Project related questions were asked
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Basic C# coding Questions

Q1. Questions related to Angular
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Q2. Question related to ASP.NET CORE
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Q1. Simple task to fetch cart and display items in the cart
Ans. 
Fetch cart items and display them
• Create a function to fetch cart items from database

• Display the items in the cart on the user interface

• Handle empty cart scenarios

• Consider pagination for large number of items
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Q2. React hooks, life cycle methods, error boundaries, hoc
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Q1. Simple task to fetch characters and their movies
Ans. 
Fetch characters and their movies
• Use API like IMDb or The Movie Database to fetch movie data

• Parse the data to extract characters and their associated movies

• Store the characters and movies in an array of strings
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Q1. Culture based questions
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Q1. Explain advantages of Angular
Ans. 
Angular offers advantages such as two-way data binding, dependency injection, and modular architecture.
• Two-way data binding allows automatic synchronization of data between the model and the view, reducing the need for manual DOM manipulation.

• Dependency injection helps manage dependencies and promotes code reusability by allowing components to be easily injected with their dependencies.

• Modular architecture enables deve...read more
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Q2. Explain about ngmodel
Ans. 
ngModel is a directive in AngularJS that binds the value of HTML controls to application data.
• ngModel is used for two-way data binding in AngularJS.

• It can be used with input, select, textarea, and custom form controls.

• Example:
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Q1. Java coding questions
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Q2. Core java and spring questions
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Q1. Salary expectation
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