Tesco Interview Questions and Answers

Q1. Risk management
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Q2. Stakeholder management
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Q3. Solution architecture and block diagram
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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
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Q4. Program values and benefits
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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
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Q5. How to assess a program benefits
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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
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Q6. Project life cycle and framework and methodology
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Q7. Values and principles
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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
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Q2. Tesco leadership values
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Q3. Conflict management
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Effective conflict management involves understanding perspectives, facilitating communication, and finding common ground for resolution.
• Identify the root cause of the conflict by listening to all parties involved.

• Encourage open communication to express feelings and viewpoints without judgment.

• Facilitate a collaborative discussion to brainstorm potential solutions.

• Focus on interests rather than positions to find common ...read more
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Q4. Risk management
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Q5. Resilience and Humility
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Q6. Trust and believe
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Q7. Team work and collaboration
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Q8. Failures and lessons learned
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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
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Q1. Product life cycle
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Q2. Program life cycle
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Q3. Project life cycle
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Q4. Schedule and effort estimate
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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
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Q5. Cost estimates and tracking
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Q6. Define project phases
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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
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Q7. Difference between Opex and Capex
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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
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Q8. Quality and various tools used
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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
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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
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Q10. Waterfall and Agile Software Development
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Q11. Business benefits and realisation
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Q12. Managing conflicting priorities
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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
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Q13. Managing stakeholders expectations and demands
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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
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Q14. Scope management and scope creeps
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Q15. Vendor management and CBA
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Q16. Team performance and Backlog management
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Q1. Write the search functionality for the products(array of objects which is having id & name). Partial Match should work in optimized way
Ans. 
Implement an optimized search function for products using partial matching on names.
• Use a loop to iterate through the products array.

• Utilize the String.prototype.includes() method for partial matching.

• Consider using a regular expression for more complex matching scenarios.

• Optimize by returning early if a match is found.

• Example: For products [{id: 1, name: 'Apple'}, {id: 2, name: 'Banana'}], searching for 'App' returns ...read more
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Q2. System Design: Internal twitter kind of app.
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Q1. What is your current role and responsibilities ?
Ans. 
I am currently working as a Senior Information Security Engineer at XYZ Company.
• Leading the implementation of security measures to protect the organization's computer systems and networks

• Conducting regular security assessments and audits to identify vulnerabilities and risks

• Developing and implementing security policies and procedures

• Responding to security incidents and conducting forensic investigations

• Providing securi...read more
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Q2. What you would like to know about this role at Tesco ?
Ans. 
I would like to know about the specific responsibilities, team structure, technology stack, and opportunities for growth in this role at Tesco.
• Responsibilities of the Information Security Engineer at Tesco

• Team structure and collaboration within the Information Security team

• Technology stack used for security measures at Tesco

• Opportunities for career growth and professional development at Tesco
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Q3. Tell me about yourself
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I am a dedicated Information Security Engineer with a strong background in cybersecurity and a passion for protecting data.
• Experienced in implementing and maintaining security measures to protect networks and systems

• Skilled in conducting security assessments and identifying vulnerabilities

• Proficient in incident response and forensic analysis

• Certified in relevant security certifications such as CISSP or CEH
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Q1. Perform Security Architecture review on the model provided.
Ans. 
Performing a security architecture review on the provided model.
• Identify potential security vulnerabilities in the architecture

• Evaluate the effectiveness of security controls in place

• Assess the overall security posture of the system

• Recommend improvements to enhance security measures
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Q2. Identify loop holes in the model given, identify what are the security controls that you will apply to make it better ?
Ans. 
Identifying loopholes in a security model and proposing security controls to improve it.
• Identify potential vulnerabilities such as weak authentication methods, lack of encryption, or inadequate access controls

• Implement strong authentication measures like multi-factor authentication to prevent unauthorized access

• Encrypt sensitive data both in transit and at rest to protect it from unauthorized access

• Implement strict acc...read more
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Q3. Devsecops related questions
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Q1. What is the domain that you are working in right now?
Ans. 
I am currently working in the domain of network security.
• Designing and implementing network security measures to protect the organization's systems and data

• Monitoring network traffic for potential security breaches

• Conducting regular security assessments and audits to identify vulnerabilities

• Responding to security incidents and implementing incident response procedures

• Implementing and managing firewalls, intrusion detec...read more
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Q2. What are the challenges that you face everyday ?
Ans. 
Some challenges faced everyday include keeping up with evolving threats, managing security incidents, and balancing security with usability.
• Keeping up with evolving threats and vulnerabilities

• Managing security incidents and responding to breaches

• Balancing security measures with usability for end users
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Q3. SaaS vs on-prem. Which technology you would advice to use in terms of security ?
Ans. 
It depends on the specific security requirements and resources of the organization.
• Consider the sensitivity of the data being stored and processed.

• Evaluate the organization's budget and resources for maintaining security measures.

• Assess the expertise of the IT team in managing security for both SaaS and on-prem solutions.

• SaaS may offer better scalability and accessibility, but on-prem may provide more control over secu...read more
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Q4. What are your expectations from your next job ?
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I expect my next job to provide challenging projects, opportunities for growth, a supportive team environment, and a competitive salary.
• Challenging projects that allow me to utilize my skills and knowledge

• Opportunities for professional growth and development

• A supportive team environment where collaboration is encouraged

• Competitive salary and benefits package

• Work-life balance and flexibility in scheduling
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Q1. Design highly scalable inventory management system
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Designing a highly scalable inventory management system involves utilizing distributed databases, microservices architecture, and efficient data processing techniques.
• Utilize distributed databases to handle large volumes of data and ensure high availability.

• Implement microservices architecture to modularize the system and allow for easy scalability.

• Use efficient data processing techniques such as batch processing and s...read more
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Q2. Follow up questions on the design you have built
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Discussing design considerations for a software project, focusing on scalability, maintainability, and user experience.
• Scalability: The design should handle increased load, e.g., using microservices to distribute traffic.

• Maintainability: Code should be modular, e.g., implementing design patterns like MVC for clear separation of concerns.

• User Experience: Prioritize intuitive UI/UX, e.g., conducting user testing to gathe...read more
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Q1. Explain all the SDLC cycle followed in your current project. Need to explain in detail.
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Q1. Tell me about yourslf
Ans. 
Experienced software development manager with a strong background in leading teams and delivering high-quality products.
• Over 10 years of experience in software development and management

• Proven track record of successfully leading cross-functional teams

• Strong technical background in various programming languages and technologies

• Passionate about mentoring and developing team members

• Focused on delivering innovative soluti...read more
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Q2. How do you handle difficult employees
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