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30+ dsm-firmenich Interview Questions and Answers

Updated 20 Feb 2025

Q1. Linux commands and how can we monitor using Linux.

Ans.

Linux commands for monitoring

  • top - displays system processes

  • htop - interactive process viewer

  • vmstat - virtual memory statistics

  • iostat - input/output statistics

  • netstat - network statistics

  • sar - system activity report

  • free - displays memory usage

  • df - displays disk space usage

  • ps - displays information about running processes

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Q2. What do you do if developers don't agree to your design?

Ans.

I would collaborate with developers to understand their concerns and find a compromise that meets both design and technical requirements.

  • Listen to developers' feedback and understand their perspective

  • Explain the reasoning behind the design decisions and the user needs

  • Collaborate with developers to find a solution that balances design and technical constraints

  • Consider alternative design options that may address developers' concerns without compromising user experience

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Q3. What is your favorite app? What do you think you can improve in that?

Ans.

My favorite app is Spotify. I think it can improve by providing more personalized playlists based on user preferences.

  • Improve recommendation algorithm for better personalized playlists

  • Enhance user interface for easier navigation and discovery of new music

  • Integrate social features for sharing and discovering music with friends

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Q4. What research did you do to back your design decisions?

Ans.

I conducted user interviews, usability testing, and competitive analysis to inform my design decisions.

  • Conducted user interviews to understand user needs and pain points

  • Performed usability testing to gather feedback on design iterations

  • Conducted competitive analysis to identify industry trends and best practices

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Q5. Why looking for change ? What kind of work is there in qualys?

Ans.

I am looking for change to explore new challenges and opportunities. Qualys offers a variety of work in cybersecurity and cloud security.

  • Seeking new challenges and opportunities to grow professionally

  • Interested in cybersecurity and cloud security

  • Excited about the diverse range of projects at Qualys

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Q6. Find the names of students whose average marks are greater than 85

Ans.

Filter students with average marks > 85

  • Calculate average marks for each student

  • Filter students with average marks > 85

  • Return names of filtered students

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Q7. How to analyze SQL Plan

Ans.

SQL plan can be analyzed using tools like SQL Developer, SQL*Plus, or Oracle Enterprise Manager.

  • Use EXPLAIN PLAN to generate a query execution plan

  • Analyze the plan for potential performance issues

  • Look for full table scans, high cost operations, and missing indexes

  • Use SQL tuning tools to optimize the plan

  • Consider using hints to force a specific execution plan

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Q8. How do you handle single-line requirements from your clients?

Ans.

I prioritize and clarify single-line requirements with clients to ensure understanding and alignment.

  • Prioritize communication with clients to clarify single-line requirements

  • Ask probing questions to fully understand the client's needs

  • Document the requirements clearly to avoid misunderstandings

  • Provide regular updates to the client on the progress of the project

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Q9. Details of SSL certs, what are usage of netstat commands.

Ans.

SSL certs are used to secure communication over the internet. Netstat command is used to display network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.

  • SSL certs are used to encrypt data transmitted between a client and a server to ensure secure communication.

  • SSL certs contain information such as the certificate holder's name, the certificate authority that issued the certificate, the certificate's public key, and the digi...read more

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Q10. Create an enqueue function that will give an enqueue dequeue peek and size

Ans.

Create an enqueue function with enqueue, dequeue, peek, and size operations.

  • Create a class Queue with an array to store elements.

  • Implement enqueue method to add elements to the queue.

  • Implement dequeue method to remove elements from the queue.

  • Implement peek method to return the first element in the queue.

  • Implement size method to return the number of elements in the queue.

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Q11. What is OWASP? Explain how to exploit SSRF.

Ans.

OWASP is a non-profit organization focused on improving software security. SSRF is a vulnerability that allows attackers to send requests from the server.

  • OWASP stands for Open Web Application Security Project

  • OWASP provides resources and tools to improve software security

  • SSRF (Server-Side Request Forgery) is a vulnerability that allows attackers to make requests from the server to internal or external resources

  • Attackers can exploit SSRF to access sensitive information, bypass ...read more

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Q12. What's false positives and what is false negatives

Ans.

False positives are incorrect alerts that are mistakenly identified as threats, while false negatives are actual threats that are missed by the system.

  • False positives are alerts that are incorrectly identified as threats by a security system.

  • False negatives are actual threats that are missed by the security system.

  • False positives can lead to wasted time and resources investigating non-existent threats.

  • False negatives can result in real threats going undetected and causing har...read more

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Q13. Challenge in analysis

Ans.

The challenge in analysis is to identify the root cause of performance issues.

  • Identify the performance metrics to be analyzed

  • Collect and analyze data from various sources

  • Use tools like APM, profiling, and monitoring tools

  • Identify patterns and anomalies in the data

  • Correlate the data to identify the root cause

  • Provide recommendations for improvement

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Q14. What is and how to use This keyword

Ans.

The 'this' keyword refers to the current object in a method or constructor.

  • Used to refer to the current object within a class

  • Can be used to pass the current object as a parameter to another method

  • Helps differentiate between instance variables and local variables with the same name

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Q15. Explain React components and lifecycle methods

Ans.

React components are reusable UI elements that manage their own state and lifecycle methods control the behavior of components.

  • React components are reusable UI elements that can be composed together to build complex user interfaces.

  • Components can manage their own state, which allows for dynamic and interactive user interfaces.

  • Lifecycle methods in React control the behavior of components at different stages of their lifecycle, such as mounting, updating, and unmounting.

  • Example...read more

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Q16. How to backup network device config?

Ans.

Network device config can be backed up using tools like TFTP, SCP, or vendor-specific backup solutions.

  • Use TFTP (Trivial File Transfer Protocol) to backup device config to a TFTP server.

  • Use SCP (Secure Copy Protocol) to securely transfer config files to a remote server.

  • Leverage vendor-specific backup solutions like Cisco's Configuration Archive or Juniper's Junos Space Network Director.

  • Automate backups using scripts or network management tools like Ansible or SolarWinds.

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Q17. Are you wiling to work on hybrid mode

Ans.

Yes, I am willing to work on hybrid mode.

  • I have experience working on hybrid applications using frameworks like Ionic or React Native.

  • I am comfortable with developing for both web and mobile platforms.

  • I understand the benefits of hybrid development in terms of cost and time efficiency.

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Q18. What is Code Splitting

Ans.

Code splitting is a technique used to split code into smaller chunks that can be loaded on demand.

  • Code splitting helps improve performance by reducing initial load times.

  • It allows for lazy loading of code, meaning only necessary code is loaded when needed.

  • Commonly used in React applications with tools like React.lazy() and Suspense.

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Q19. diffrence between django and flask

Ans.

Django is a high-level Python web framework that encourages rapid development and clean, pragmatic design. Flask is a lightweight WSGI web application framework.

  • Django is a full-featured framework with built-in ORM, admin panel, and authentication system.

  • Flask is a microframework that is more lightweight and flexible, allowing developers to choose their own tools and libraries.

  • Django follows the 'batteries included' philosophy, while Flask follows the 'minimalistic' approach....read more

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Q20. Experience of deployment using docker

Ans.

I have experience deploying web applications using Docker for containerization and easy deployment.

  • Utilized Docker Compose for managing multi-container applications

  • Created Dockerfiles to define application environments

  • Deployed applications to production servers using Docker Swarm or Kubernetes

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Q21. Details in SSL, use if netstat command

Ans.

SSL (Secure Sockets Layer) is a protocol that ensures secure communication over a computer network.

  • SSL encrypts data transmitted between a client and a server to prevent eavesdropping.

  • Netstat command is used to display active network connections, routing tables, and interface statistics.

  • To check SSL connections using netstat, you can use 'netstat -an | findstr :443' for HTTPS connections.

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Q22. Find starting point in a graph

Ans.

To find starting point in a graph, perform a topological sort and return the first node with no incoming edges.

  • Perform a topological sort on the graph

  • Return the first node with no incoming edges as the starting point

  • If there are multiple nodes with no incoming edges, choose any one as the starting point

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Q23. Sorting element in Array

Ans.

Sorting elements in an array of strings

  • Use built-in sorting functions like sort() in most programming languages

  • Custom sorting can be implemented based on specific requirements

  • Consider the case sensitivity and special characters while sorting

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Q24. Exploit a vulnerable demo website.

Ans.

Exploit a vulnerable demo website to demonstrate technical skills.

  • Identify the vulnerability in the website (e.g. SQL injection, XSS)

  • Exploit the vulnerability to gain unauthorized access or perform malicious actions

  • Document the steps taken and potential impact of the exploit

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Q25. How to integrate entities

Ans.

Integrating entities involves connecting different systems or components to work together seamlessly.

  • Identify the entities that need to be integrated

  • Determine the communication protocols and data formats for integration

  • Develop APIs or middleware to facilitate communication

  • Test the integration to ensure proper functionality

  • Monitor and maintain the integration for ongoing performance

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Q26. Difference between budget and forecast

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Q27. How to handle cookies

Ans.

Cookies should be handled securely to protect user privacy and prevent security risks.

  • Always use secure and HttpOnly flags to prevent cross-site scripting attacks

  • Set expiration dates for cookies to limit their lifespan

  • Regularly review and update cookie policies to comply with privacy regulations

  • Inform users about the use of cookies and provide options to manage their preferences

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Q28. Phases while using terraform

Ans.

Phases in using Terraform include initialization, planning, applying, and destroying.

  • Initialization: Setting up Terraform environment with 'terraform init'

  • Planning: Preview changes with 'terraform plan'

  • Applying: Execute changes with 'terraform apply'

  • Destroying: Remove resources with 'terraform destroy'

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Q29. Datatypes in python

Ans.

Python has various datatypes like int, float, str, list, tuple, dict, set, bool.

  • int: whole numbers

  • float: decimal numbers

  • str: text

  • list: ordered collection

  • tuple: ordered, immutable collection

  • dict: key-value pairs

  • set: unordered collection with no duplicates

  • bool: True or False values

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Q30. Explain OSI model

Ans.

The OSI model is a conceptual framework that standardizes the functions of a telecommunication or computing system into seven layers.

  • The OSI model stands for Open Systems Interconnection model.

  • It divides network communication into seven layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application.

  • Each layer has specific functions and interacts with adjacent layers for data transmission.

  • The model helps in understanding how data flows in a network and...read more

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Q31. Explain your org structure

Ans.

Matrix-based with cross-functional teams and clear reporting lines

  • Matrix structure with functional and project-based teams

  • Clear reporting lines for accountability

  • Cross-functional teams for collaboration and innovation

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Q32. System design on Tiny URL

Ans.

System design on Tiny URL

  • Use a unique identifier for each URL to generate a short alias

  • Implement a mapping system to redirect the short alias to the original URL

  • Consider scalability and performance when designing the system

  • Ensure security measures are in place to prevent misuse or abuse of the system

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