ScanCafe Interview Questions and Answers

Q1. 3 short programming questions(can solve in any language, just need to complete the missing code)
Add your answer
Q2. Aptitude and technical mcqs
Add your answer

Long programming round in the Chennai office - 3 hours.
use case scenario will be provided: need to sketch any diagrams like uml/class/ER diagrams but not flow chart.

45 min for diagram and presentation to Pannel(each Pannel: 10 students with 1-3 Pannel members) once your presentation and modifications are approved. van proceed with programming(implementation of the use case).

Q1. 30- 45 min of technical 1 Each Pannel consist of 2 to3 interviewers.
Add your answer
Q2. Questions from resume(projects,skillsets) solving problems with low time complexity possible
Add your answer
Q3. Database(sql Querys) Indepth Opps questions(with implementation)
Add your answer

Q1. Technical 2 DSA(data structures like linked list, trees) projects evaluating skills few os and cn questions
Add your answer

It is oru skills and communication and problem solving time management

Q1. Languageas and knowledge are designned to acess you specific and work wirh skills to the technical aspects of the job
Add your answer
Q2. And job role and solve the problem whether the good communication activness and spirit an leadership and time management
Add your answer
Q3. And basically i was interested in sports also like football cricket and highlight the achievement and work for this company so i was interested and like sales executive
Add your answer
Q4. I was work I company sure I was layout tha product design and some strategies and diffent ideas to use it and good communication and active listening of working and great leadership to empriaze thank you
Add your answer

Group dicussion is nothinv but face to face of interview choose one topic and say somethinh about from 5 to 7 minutes of paragarpah and to be staright forward of this group discussion and proper pronuciation and way of speaking and communication language whether right or wrong we must do and speak

Q1. It also oru skills and communication to be check and about tha company the will explain about that
Add your answer
Q2. At finally good communictaion and posiively and leadership is to work and developed that company in every situation
Add your answer

PPT working relatives

PPT as per working and feedback to team leader and manignent side.

Q1. Good Profomanc and and hard working and good leadership.
Add your answer
Q2. Team work all employees and detter results my senior.
Add your answer
Q3. Team Responcbality and achieved the target🎯
Add your answer
Q4. Good performance support with senior better results.
Add your answer
Q5. Without any issue achieved tha target.
Add your answer

There were 4 sections and first one was quant, second one was logical, third was English and finally 3 coding questions in last section

4 codes and 5 technical questions

Q1. Explain multi threading
Ans. 
Multi threading is the ability of a CPU to execute multiple threads concurrently.
• Allows for parallel execution of tasks, improving performance

• Each thread has its own stack and runs independently

• Threads can communicate and synchronize using shared memory

• Examples: running multiple tasks simultaneously in a web server, processing data in parallel
Answered by AI
Add your answer
Q2. What is polymorphism
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types.

• Examples include method overloading and method overriding in object-oriented programming.
Answered by AI
Add your answer
Q3. Diff b/w inner and outer joins
Ans. 
Inner join returns only the rows that have matching values in both tables, while outer join returns all rows from both tables.
• Inner join: returns rows with matching values in both tables

• Outer join: returns all rows from both tables, with NULL values where there is no match

• Example: Inner join - SELECT * FROM table1 INNER JOIN table2 ON table1.id = table2.id

• Example: Outer join - SELECT * FROM table1 LEFT OUTER JOIN table
Answered by AI
Add your answer

Q1. Risk management
Add your answer
Q2. Stakeholder management
Add your answer
Q3. Solution architecture and block diagram
Ans. 
Solution architecture and block diagram involves designing the overall structure of a system and visually representing it.
• Identify key components and their interactions

• Define data flow and communication protocols

• Consider scalability, security, and performance

• Use tools like UML diagrams or flowcharts

• Example: AWS architecture with EC2 instances, S3 storage, and RDS database
Answered by AI
Add your answer
Q4. Program values and benefits
Ans. 
Program values and benefits are essential for successful project management, ensuring alignment with organizational goals and delivering value to stakeholders.
• Program values define the principles and beliefs that guide decision-making and behavior within the program.

• Benefits are the positive outcomes or results that the program aims to achieve, such as cost savings, increased efficiency, or improved customer satisfacti...read more
Answered by AI
Add your answer
Q5. How to assess a program benefits
Ans. 
Assessing program benefits involves identifying key metrics, collecting data, analyzing results, and comparing against goals.
• Identify key metrics to measure success, such as cost savings, revenue growth, customer satisfaction, etc.

• Collect relevant data to track progress and measure impact of the program.

• Analyze the data to determine if the program is meeting its objectives and delivering expected benefits.

• Compare the r...read more
Answered by AI
Add your answer
Q6. Project life cycle and framework and methodology
Add your answer
Q7. Values and principles
Add your answer

2 case study rounds for 1.5 hours, 1st case study is a small use case with 2 questions and there will be 10 mins given for preparation. 2nd case study will have 5 questions and time given for preparation will be 25 mins.

Q1. Tesco cultural values
Add your answer
Q2. Tesco leadership values
Add your answer
Q3. Conflict management
Add your answer
Q4. Risk management
Add your answer
Q5. Resilience and Humility
Add your answer
Q6. Trust and believe
Add your answer
Q7. Team work and collaboration
Add your answer
Q8. Failures and lessons learned
Ans. 
I have experienced failures in past projects and have learned valuable lessons from them.
• Recognizing the importance of clear communication and setting expectations early on

• Implementing regular project status updates to stakeholders to avoid surprises

• Documenting lessons learned to prevent repeating the same mistakes in future projects
Answered by AI
Add your answer

Q1. Product life cycle
Add your answer
Q2. Program life cycle
Add your answer
Q3. Project life cycle
Add your answer
Q4. Schedule and effort estimate
Ans. 
Schedule and effort estimation is crucial for successful project management.
• Understand the scope of the project and break it down into smaller tasks

• Estimate the time and resources required for each task

• Consider dependencies between tasks and potential risks

• Use historical data or expert judgment to improve accuracy

• Regularly review and update the schedule as needed
Answered by AI
Add your answer
Q5. Cost estimates and tracking
Add your answer
Q6. Define project phases
Ans. 
Project phases are distinct stages in a project's lifecycle, each with specific goals and deliverables.
• Initiation: Define project scope, objectives, and stakeholders.

• Planning: Create a detailed project plan, including timelines and resources.

• Execution: Implement the project plan and deliver the project's objectives.

• Monitoring and Controlling: Track project progress, identify issues, and make necessary adjustments.

• Closi...read more
Answered by AI
Add your answer
Q7. Difference between Opex and Capex
Ans. 
Opex refers to operational expenses, while Capex refers to capital expenses.
• Opex includes day-to-day expenses like salaries, rent, utilities, and maintenance.

• Capex involves investments in assets that provide long-term value, such as equipment, property, and infrastructure.

• Opex is typically incurred regularly and is fully tax-deductible in the year it is incurred.

• Capex is usually depreciated over time as the asset is us...read more
Answered by AI
Add your answer
Q8. Quality and various tools used
Ans. 
Quality is crucial in delivering successful projects. Various tools like Jira, Confluence, and Jenkins are commonly used to ensure high quality.
• Quality assurance processes are essential to maintain high standards in project deliverables

• Tools like Jira are used for issue tracking and project management

• Confluence is used for documentation and collaboration among team members

• Jenkins is used for continuous integration and ...read more
Answered by AI
Add your answer
Q9. Demonstrate one project with technical expertise and IT landscape and Tech Stacks
Ans. 
Led a project to implement a cloud-based data analytics platform using AWS services and Python tech stack.
• Designed architecture for data analytics platform using AWS services like S3, Glue, and Athena.

• Implemented ETL processes using Python and Apache Spark for data transformation and analysis.

• Integrated machine learning models into the platform for predictive analytics.

• Ensured scalability and performance optimization o...read more
Answered by AI
Add your answer
Q10. Waterfall and Agile Software Development
Add your answer
Q11. Business benefits and realisation
Add your answer
Q12. Managing conflicting priorities
Ans. 
Managing conflicting priorities involves prioritizing tasks, communicating effectively, and being flexible.
• Prioritize tasks based on importance and deadlines

• Communicate with stakeholders to understand their needs and expectations

• Be flexible and willing to adjust plans as needed

• Use tools like project management software to track progress and manage tasks
Answered by AI
Add your answer
Q13. Managing stakeholders expectations and demands
Ans. 
Managing stakeholders expectations and demands is crucial for successful project delivery.
• Establish clear communication channels with stakeholders

• Set realistic expectations from the beginning

• Regularly update stakeholders on project progress

• Address any concerns or issues promptly

• Seek feedback from stakeholders to ensure alignment
Answered by AI
Add your answer
Q14. Scope management and scope creeps
Add your answer
Q15. Vendor management and CBA
Add your answer
Q16. Team performance and Backlog management
Add your answer

Q1. Variation of sort 0,1,2
Ans. 
The question is asking for a variation of sorting an array containing 0s, 1s, and 2s.
• Use a three-way partitioning algorithm to sort the array in a single pass.

• Keep track of three pointers - low, mid, and high to partition the array.

• Example: Input array = [0, 1, 2, 1, 0], Output array = [0, 0, 1, 1, 2]
Answered by AI
Add your answer
Q2. Longest palindromic substring
Ans. 
A palindromic substring is a string that reads the same forwards and backwards.
• Use dynamic programming to find the longest palindromic substring.

• Start by considering each character as the center of a potential palindrome.

• Expand outwards from each center to check for palindromic substrings.

• Keep track of the longest palindrome found so far.

• Example: Input 'babad', Output 'bab' or 'aba'.
Answered by AI
Add your answer
Q3. Core qns (DBMS+OS+OOPS+CN)+ high level of project
Add your answer

Q1. Deep dive discussion on projects(No DSA qns)
Add your answer
Q2. Asking why you used only that techstack on project ,what are your difficulties on project and who advised you to use that techstack
Add your answer

Q1. What is the code of steel use in plant?
Ans. 
The code of steel used in plants is typically specified by the American Society for Testing and Materials (ASTM).
• Steel used in plants is often specified by ASTM standards.

• Common codes for steel used in plants include ASTM A36, ASTM A572, and ASTM A516.

• The specific code of steel used in a plant will depend on factors such as the type of plant, the structural requirements, and the environmental conditions.
Answered by AI
Add your answer
Q2. What is compressor & how it work?
Ans. 
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume.
• Compressors are commonly used in refrigeration, air conditioning, and gas turbines.

• They work by taking in a gas at a low pressure and volume, and then reducing the volume to increase the pressure.

• This process is achieved through the use of pistons, vanes, or rotating impellers.

• The compressed gas is then released at a higher
Answered by AI
Add your answer

Q1. What is roots blower & it's working principle?
Ans. 
A roots blower is a type of positive displacement pump that operates by pumping fluid between a pair of meshing lobes.
• Consists of two counter-rotating lobes that trap and move fluid through the blower

• Fluid is pushed from the inlet to the outlet without compression

• Commonly used in applications such as wastewater treatment, pneumatic conveying, and vacuum systems
Answered by AI
Add your answer
Q2. Tell me about truss, lover & peeling.
Ans. 
Truss, lever, and pulley are mechanical components commonly used in engineering for structural support and mechanical advantage.
• Truss is a framework of beams used to support a structure, often in the form of triangles for stability.

• Lever is a simple machine consisting of a rigid bar that pivots around a fixed point to amplify force.

• Pulley is a wheel with a groove used to change the direction of a force, allowing for ea...read more
Answered by AI
Add your answer

Online test with a few behavioral questions and games. Nothing difficult.

This round included CSE Core MCQs and 2 coding questions. MCQs where moderated and Coding questions were for Leetcode Medium-Hard difficulty.

Q1. Interview Round - Resume based questions regarding internships, projects and tech stacks.
Add your answer
Q2. Python-based simple questions, a few DBMS questions, and some AI/ML. Nothing too difficult and one-liner answers were expected.
Add your answer