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Wind River

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Wind River Interview Questions and Answers

Updated 22 Apr 2024

Q1. How would you handle terraform state in file system?

Ans.

Terraform state in file system can be managed using remote backends or local state files.

  • Use remote backends like S3, Azure Blob Storage, or Google Cloud Storage for better collaboration and security.

  • If using local state files, store them in a version-controlled directory to track changes and prevent conflicts.

  • Consider using Terraform Cloud for centralized state management and collaboration among team members.

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Q2. Explain statefulset in terms of kubenetes

Ans.

StatefulSet in Kubernetes manages stateful applications by providing stable, unique network identifiers and persistent storage.

  • StatefulSet ensures that each pod in the set has a unique identity and stable network hostname

  • StatefulSet pods are created and managed in a predictable order, with each pod having a persistent identifier

  • StatefulSet is useful for stateful applications like databases where data persistence and unique identities are important

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Q3. Explain CICD process in a cloud environment.

Ans.

CICD process in a cloud environment involves automating the build, test, and deployment of applications in the cloud.

  • Automate the process of building, testing, and deploying code changes

  • Integrate code changes into a shared repository

  • Automatically trigger builds and tests upon code changes

  • Deploy applications to cloud environments using automation tools like Jenkins, GitLab CI/CD, or AWS CodePipeline

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Q4. What is a scheduler and it's tasks

Ans.

A scheduler is a software component responsible for managing the execution of tasks in a computer system.

  • Schedulers determine the order in which tasks are executed based on priority, deadlines, or other criteria.

  • They allocate resources such as CPU time and memory to tasks.

  • Schedulers can be preemptive (switch tasks before they complete) or non-preemptive (tasks run to completion).

  • Examples of schedulers include the Linux Completely Fair Scheduler (CFS) and the Windows Task Sche...read more

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Q5. Handle issues in working environment.

Ans.

Handling issues in the working environment involves effective communication, problem-solving skills, and conflict resolution.

  • Effective communication is key to addressing and resolving issues in the working environment.

  • Develop problem-solving skills to tackle challenges that arise in the workplace.

  • Practice conflict resolution techniques to manage disagreements and maintain a positive work environment.

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Q6. Explain about RTOS tasks mapping

Ans.

RTOS tasks mapping involves assigning tasks to specific priorities and resources in a real-time operating system.

  • RTOS tasks are mapped to specific priorities based on their importance and deadlines.

  • Tasks are assigned to specific resources such as CPU time, memory, and I/O devices.

  • Mapping ensures that critical tasks are executed on time and resources are efficiently utilized.

  • Example: A task that requires frequent communication with a sensor may be assigned a higher priority to...read more

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Q7. What is memory leak

Ans.

Memory leak is a situation where a program fails to release memory it has allocated, leading to a gradual loss of available memory.

  • Memory leaks occur when a program allocates memory but does not free it after use.

  • This can lead to a gradual increase in memory usage over time, potentially causing the program to crash or slow down.

  • Common causes of memory leaks include programming errors, such as forgetting to free memory or losing track of memory allocations.

  • Examples of memory l...read more

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