Infor Global Solution Interview Questions and Answers

Q1. Explain OOPS concept and how you apply it in your implementation
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Q2. Difference between Comparable and Comparator. Difference between Abstract Class and Interface
Ans. 
Comparable is an interface used for natural ordering, Comparator is an interface used for custom ordering. Abstract class can have method implementations, Interface cannot.
• Comparable interface is used to define the natural ordering of objects. Example: String class implements Comparable interface for natural ordering based on alphabetical order.

• Comparator interface is used to define custom ordering of objects. Example:...read more
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Q3. Given a string. Find the number of occurrences of each character
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Q4. Given an array. Remove the number of duplicates
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Q5. Given a student object having name and grade data variables. Sort the object on the basis of highest grade.
Ans. 
Sort student objects by grade in descending order to prioritize highest grades.
• Define a Student class with properties: name and grade.

• Create an array of Student objects.

• Use a sorting function (e.g., JavaScript's sort method) to sort by grade.

• Example: students.sort((a, b) => b.grade - a.grade);

• Output the sorted array to see students from highest to lowest grade.
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Q1. Internal working of hashmap
Ans. 
A hashmap uses key-value pairs for efficient data retrieval, leveraging hashing for quick access and storage.
• Hashing: Converts keys into hash codes, which determine the index in an array.

• Collision Handling: Techniques like chaining (linked lists) or open addressing resolve hash collisions.

• Load Factor: A measure of how full the hashmap is, affecting performance; typically triggers resizing when exceeded.

• Resizing: When t...read more
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Q2. What are collections
Ans. 
Collections are data structures that store groups of related objects or values, facilitating data management and manipulation.
• Types of collections include Lists, Sets, Maps, and Queues.

• Lists (e.g., ArrayList in Java) allow duplicate elements and maintain order.

• Sets (e.g., HashSet in Java) store unique elements and do not maintain order.

• Maps (e.g., HashMap in Java) store key-value pairs for efficient data retrieval.

• Queu...read more
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Q3. What are design Patterns explain singleton design pattern
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Q4. What annotations did you use in spring boot. how @transaction annotation works
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Q1. Asked 2 puzzles
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Q2. What is vertical scaling and horizontal scaling
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Q1. Salary Discussion
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Q1. Why did you choose infor
Ans. 
I chose Infor because of its reputation for innovative technology solutions and its commitment to employee development.
• Infor is known for its cutting-edge technology solutions in the industry.

• I was impressed by Infor's focus on employee growth and development opportunities.

• I believe Infor's values align with my own professional goals and aspirations.
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Q2. Explain how you work under stress
Ans. 
I thrive under pressure by staying organized, prioritizing tasks, and maintaining a positive attitude.
• I stay organized by creating to-do lists and breaking down tasks into manageable steps.

• I prioritize tasks based on deadlines and importance to ensure that critical work is completed first.

• I maintain a positive attitude by taking short breaks to recharge, practicing deep breathing exercises, and seeking support from col...read more
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Q1. Everything mentioned on CV
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Q2. Some coding questions
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Q1. Same questions as first interview but deeper approach
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Q2. Coding is involved again
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Coding skills in python

Q1. Whre do yo use python
Ans. 
Python is used in various areas such as web development, data analysis, automation, machine learning, and more.
• Web development (Django, Flask)

• Data analysis (Pandas, NumPy)

• Automation (Scripting, DevOps tools)

• Machine learning (TensorFlow, PyTorch)
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Q2. What are all important Devops tools
Ans. 
Some important DevOps tools include Jenkins, Docker, Ansible, Kubernetes, and Git.
• Jenkins

• Docker

• Ansible

• Kubernetes

• Git
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Q1. Are you willing to work in shifts
Ans. 
Yes, I am willing to work in shifts.
• I am flexible with my working hours and can adapt to different shifts.

• I understand the importance of round-the-clock support in a DevOps role.

• I have previous experience working in shifts and have no issues with it.
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Q2. What are your sal expectation
Ans. 
My salary expectation is based on my experience, skills, and the market rate for DevOps Engineers.
• I have researched the average salary range for DevOps Engineers in this location.

• I am looking for a competitive salary that reflects my expertise in the field.

• I am open to negotiation based on the overall compensation package offered.
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Q1. Explain OOPS concepts
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Q2. Explain Hashmap internals
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Q1. What are your salary expectations and previous experience?
Ans. 
My salary expectations are in line with industry standards based on my 5 years of experience in DevOps roles.
• Salary expectations are based on industry standards and my level of experience

• I have 5 years of experience in DevOps roles

• Previous salary range was $80,000 - $100,000 per year
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Q1. Debugging a broken Dockerfile
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Debugging a broken Dockerfile involves identifying and fixing errors in the Dockerfile code.
• Check for syntax errors in the Dockerfile code

• Ensure that all necessary dependencies are properly installed

• Use the 'docker build' command with the '--debug' flag to get more detailed error messages

• Check the build logs for any specific error messages or warnings

• Consider using a Dockerfile linter to identify common issues
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