HCLTech SAP Hana Consultant Interview Questions and Answers

Math's and reasoning

Q1. Why we are selecting you?
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Q1. Nth higest salary query in sql
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Q2. Constraints
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Q3. Delete drop truncate
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Q4. Identity column
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Q5. Ref and out
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Q6. Polymorphism code
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Q7. Inheritance, interface, abstract class,access modifiers, solid principles,design patterns
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Q8. Remove duplicates from an array
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Remove duplicates from an array of strings
• Create a Set to store unique elements

• Iterate through the array and add each element to the Set

• Convert the Set back to an array to get the unique elements
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Q1. Internal working of Hashmap
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HashMap in Java is a data structure that stores key-value pairs and uses hashing to efficiently retrieve values.
• HashMap uses an array of buckets to store key-value pairs.

• Keys are hashed to determine the index where the value will be stored.

• In case of hash collisions, a linked list or balanced tree is used to store multiple entries in the same bucket.

• HashMap allows one null key and multiple null values.

• Example: HashMap&...read more
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Q2. JAVA 8 Stream API coding questions
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Q1. JAVA 8 advanced coding question
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Q2. Specific questions on client requirements
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Q1. General questions on expectations
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Percentage and averages, number and alphabet series, compound interest (CI) and simple interest (SI).

Basic programs include: 1. A program to perform the addition of two numbers, 2. A program to print a star pattern, and 3. A program to generate a triangle output, among others.

Q1. What challenges did we face?
Ans. 
We faced challenges related to communication, resource allocation, and project timelines.
• Communication breakdown between team members

• Limited resources available for the project

• Struggling to meet project deadlines
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Q2. Where do you see yourself in the next five years?
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In five years, I see myself as a senior consultant leading projects and mentoring junior team members.
• Advancing to a senior consultant role

• Leading projects and teams

• Mentoring junior team members

• Continuing professional development through training and certifications
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Q3. What strategies can be employed to overcome failures?
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Strategies to overcome failures include learning from mistakes, staying positive, seeking feedback, and setting new goals.
• Learn from mistakes by analyzing what went wrong and how to improve

• Stay positive and maintain a growth mindset to bounce back from setbacks

• Seek feedback from mentors or colleagues to gain different perspectives

• Set new goals and create a plan to move forward with renewed motivation
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Q4. Are you able to work effectively under pressure?
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Yes, I thrive under pressure and can effectively manage my time and priorities to meet deadlines.
• I have experience working in fast-paced environments where quick decision-making and adaptability are key.

• I am able to stay calm and focused under pressure, allowing me to deliver high-quality work even in challenging situations.

• I prioritize tasks effectively to ensure that deadlines are met without compromising on quality.

• ...read more
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Q1. Java Based Questions
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Q1. Shipping point determination
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Q2. Plant determination with order of preference
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Plant determination can be done by considering various factors in order of preference.
• Start by looking at the plant's physical characteristics such as leaves, flowers, and stems.

• Next, consider the plant's habitat and location to narrow down possibilities.

• Use plant identification guides or apps for further assistance.

• Consult with botanical experts or horticulturists for accurate identification.

• Consider factors like seas...read more
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Q3. Difference between s4 hana and ecc
Ans. 
SAP S/4HANA is the next-generation business suite designed to run on SAP HANA, while ECC is the previous version of SAP's ERP software.
• S/4HANA is built on the SAP HANA platform for real-time data processing, while ECC runs on traditional databases.

• S/4HANA offers a simplified data model and user interface, while ECC has a more complex structure.

• S/4HANA includes advanced features like predictive analytics and machine lea...read more
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Q4. Difference between Greenfield and brownfield implementation
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Greenfield is starting a new project from scratch, while brownfield is implementing changes to an existing project.
• Greenfield involves building a new system or project from the ground up.

• Brownfield involves making changes or improvements to an existing system or project.

• Greenfield projects are typically more time-consuming and costly due to starting from scratch.

• Brownfield projects may have limitations or constraints d...read more
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Q5. Scenario based questions around Product allocation and back order processing bop
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Q6. Business partner and what tables are updated in backend in sap s4 hana, why is the old tables like kna1, knb1 still required?
Ans. 
Old tables like KNA1, KNB1 are still required in SAP S4 HANA for compatibility and historical data purposes.
• Old tables like KNA1, KNB1 are still required in SAP S4 HANA for compatibility with existing programs and reports.

• Some custom developments may still be using the old tables, requiring them to be maintained.

• Historical data stored in the old tables may still be needed for reference or reporting purposes.
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Q7. Questions on current project
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Q8. S4 Hana einvoice - consolidated invoice
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Q9. Why are you looking for a change(Exp in curren company<= 2 years)
Ans. 
Seeking new challenges and growth opportunities after gaining valuable experience in current role.
• Looking for new challenges and opportunities for growth

• Seeking a role with more responsibility and impact

• Want to expand my skill set and knowledge in a different environment
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Q1. What are the difference between column storage and row storage
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Write a program to print the Fibonacci series.

Q1. Your experience in Manufacturing
Ans. 
I have over 10 years of experience in manufacturing, specializing in lean production and process optimization.
• Implemented lean manufacturing principles to reduce waste and improve efficiency

• Led cross-functional teams to streamline production processes

• Utilized Six Sigma methodologies to identify and solve quality issues

• Managed production schedules and inventory levels to meet customer demand

• Implemented automation and ro
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Q2. What is the complex integration you did?
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I led a complex integration project between two large financial institutions to streamline their data sharing processes.
• Designed a custom API to facilitate real-time data exchange between the systems

• Implemented data mapping and transformation logic to ensure compatibility between the different data formats

• Worked closely with both technical teams to troubleshoot and resolve integration issues

• Developed a comprehensive te...read more
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