Well, here I am with OpenStack interview question and answers.

Are you looking for your next career challenge and want to advance your cloud computing skills? Take a look at our OpenStack advanced interview questions! When it comes to providing scalable, versatile, and effective cloud solutions, this breakthrough open-source platform is leading the way.

Don’t be afraid! It is entirely possible to obtain all of the necessary knowledge to ace and land your ideal employment with the right mentality and strategy.

Interview Questions on OpenStack:

1. What is OpenStack?

OpenStack is a popular platform for managing private and hybrid clouds, with the latter being more accessible to users. Private clouds offer users control over their environment, such as changing servers or saving storage devices, while public clouds do not provide access to infrastructure.

2. What is cloud computing?

Cloud computing is the delivery of computing resources, such as application platforms, infrastructure, compute power, storage, and network, through the internet. It offers flexibility and industrialization of IT services. You can get an idea on OpenStack cloud interview questions here.

3. How does virtualization work?

Virtualization involves using the physical computer and applying a hypervisor to break down the system virtually to create instances over top of it. This creates a virtual environment on top of the main architecture, which is a real machine such as a laptop, system, or server.

4. What is the difference between virtualization and cloud computing?

Virtualization allows for more efficient and cost-effective solutions by allowing multiple operating systems to be installed on a server or system, running with the same amount of cooling power and space.

Cloud computing addresses the cost factor, scaling utilization, and provides freedom to self-service.

5. What will be covered in the first module of the OpenStack?

The first module will cover understanding cloud and open stack, with modules such as keystone, no box, cinder, glance, neutron, horizon, heat, cilamenta, databases, step, object storage, installation troubleshooting, operators, and ELK stack.

6. What is the ELK stack?

The ELK stack is a new concept introduced in module 14 and is a central logman system implemented on top of the Open Stack environment to collect logs and troubleshoot issues.

7. What are the two types of virtualizations?

There are two types of virtualizations hardware virtualization and software virtualization. Hardware virtualization involves using software hypervisors to virtualize a system’s hardware, while software virtualization uses hardware virtualization to create virtual machines or instances.

8. What is cloud computing’s commitment postulate?

Cloud computing’s commitment postulate is dynamic and on-demand provisioning, allowing users to access virtual machines or instances from their home without waiting for a system.

9. What is multi-tenancy computing?

Multi-tenancy computing is a type of cloud computing where different tenants share resources.

Virtualization virtualizes systems, creating an environment where users can access one cluster of servers and another project without accessing another.

10. What is the difference between public and private clouds?

Public clouds are for private organizations, where they can use it without being in charge or having access to hard reads.

In contrast, private clouds are used by organizations for internal purposes, where they have full exposure over day-to-day operations, server types, internet speeds, bandwidth, and server locations.

11. What are the three main types of cloud services?

The three main types of cloud services are Infrastructure Services (IA S), Software Services (SAs), and Devices as Services (D-B A S). IA S provides a platform for users to start a cloud, while SAs offers software services for consumers. D-B A S is a shorthand for devices, while SAs provides a platform for users to manage their devices.

12. What is cloud delivery model?

The cloud delivery model is not just a service model, but a combination of three main offerings infrastructure, platform, and software. Infrastructure is used to launch virtual machines, while platform is a platform-based application that manages hardware, bandwidth, and other aspects. Software is a service that users can use, and the provider is responsible for providing it.

13. What are the building blocks of a cloud computing infrastructure as a service?

The building blocks of a cloud computing infrastructure as a service include a hypervisor virtual machine (CPU), stacked memory, a virtual network, VPNs, storage networks, and web services.

These technologies allow for agility by running multiple opportunities systems on a single physical system and sharing underlying resources.

14. What is infrastructure as a service (IaaS)?

Infrastructure as a service (IaaS) is used by operators and IT professionals for the infrastructure on the metal or in the cloud. This model allows for better management and flexibility in managing resources and resources efficiently.

15. What is virtual machine on the metal (VM on the metal)?

Virtual machine on the metal (VM on the metal) is mainly used by patchers and end users who use the system for development work.

16. What is service level agreement (SLA)?

Service level agreement (SLA) is a contractual agreement between a service provider and a customer that specifies the level of service that the provider will deliver, including uptime, response time, and other performance metrics.

17. What is a cloud orchestration tool?

A cloud orchestration tool is software that automates the deployment, scaling, and management of applications and services in a cloud environment.

18. What is a heat template?

Heat template is a JSON file that defines the infrastructure and configuration of a cloud-based application or service. It is used to automate the deployment and scaling of applications in a cloud environment.

19. What is an IRC channel?

IRC (Internet Relay Chat) is a real-time communication protocol that is used for text-based communication on the Internet. An IRC channel is a collection of messages sent between users in a chat room on an IRC server.

CloudFoundation will provide you with OpenStack interview questions and answers for experience and freshers who want to start their career in OpenStack.

20. What is an OpenStack community?

The OpenStack community is a group of developers, users, and organizations that contribute to the development and deployment of open-source cloud infrastructure software.

21. What is the configuration of virtual machines and their memory usage recommended in the text?

It is recommended that a 10 GB to 15 GB virtual machine is recommended, with one core for every server. For other virtual machines, only one GB of RAM can be used.

22. What are the different service models discussed in the text?

The different service models discussed in the text are Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).

23. What is Cinder in the OpenStack?

Cinder is a virtualized block storage service in the OpenStack that is attached to a virtual machine at the time of creation, allowing users to store data under the virtual machine.

24. What is Keystone in the OpenStack?

Keystone is an authentication and authorization service in the OpenStack that manages user tokens and verifies them to prevent security breaches. It is the main part of the OpenStack’s identity system.

25. What are the core services in the OpenStack?

The core services in the OpenStack include storage services like Swift and Cinder, which are object stores that can store large amounts of data, and computing services like Nova, which provides virtualization capabilities using a hypervisor and enables instances creation.

26. What are some of the extra services in the OpenStack?

Some of the extra services in the OpenStack include Neutron, which provides virtual networks, Swift, which is an object storage service, and Cinder, which is a virtualized block storage service.

27. What is the hypervisor in the OpenStack?

The hypervisor is the main part of the OpenStack’s compute system, which provides virtualization capabilities using a hypervisor and enables instances creation.

28. What is Rapid M in the OpenStack?

Rapid M is a messaging queue that is used for inter-service communication in the OpenStack.

29. What is the messaging queue used in OpenStack?

The messaging queue is a subservice used in the OpenStack architecture to receive and store messages, providing functionality. It uses My Suare as a standard database, and every service has its own database with important metadata. Here you can get an overview on OpenStack architect interview questions.

30. What are the types of clouds provided by OpenStack?

OpenStack provides various types of clouds, including compute, objects storage, and shared devices. Compute plus object storage allows users to store large and huge files on a shared device, while objects storage is used for internal storage like logical drives.

31. What is Cinder?

Cinder is a component of OpenStack that stores all file systems, similar to a device’s internal structure. It can be set as a NAS or SAN type of storage. Once a virtual machine is created, it stores the operating system and downloaded files.

32. What is Shift?

Shift is a component of OpenStack that stores files on a server or non-cell instance. Cinder is the main storage of the open stack instance and can be backup and placed on top of the instance.

33. What is the OpenStack dashboard?

The OpenStack dashboard is a web-based user interface that allows users to interact with and manage OpenStack components and services.

34. What is Ironic?

Ironic is a component of OpenStack that provides bare metal provisioning services, allowing for the provisioning of a system based on bare metal provisioning. It is used when a specific instance or operating system requires running on bare metal.

35. What is Bear Metal provisioning?

Bear Metal provisioning is a process that launches a system or service on top of hardware, such as an operating system on top of a virtualization software. It involves installing additional services for monitoring or contacting shared services in the OpenStack.

36. What are the advantages of using OpenStack on top of VMware?

The advantages of using OpenStack on top of VMware include high availability, excellent support, and flexibility in managing virtual machines.

OpenStack provides a secure environment for virtual machines, with various components and services being added to enhance performance and adapt to different environments.

37. How does the bridge adapter work in installing a virtual machine on a server network?

The bridge adapter works by providing a new IP address based on the router setting. If you have a firewall and router, it is recommended to use a bridge adapter for a new IP address.

If you are behind a router and your router can provide the IP address, you can choose a host, network, or NAT and edit it in Ubuntu to ensure it is using a computer’s network.

38. How can you test the functionality of the OpenStack?

To test the functionality of the OpenStack, the user creates a virtual box with the necessary configuration. They create an Ubuntu Linux virtual machine with 2GB of storage and create a virtual machine with the animator allocated. The virtual machine is then created and left to run.

39. How does the OpenStack dashboard work?

The OpenStack dashboard runs on a virtual machine and can be accessed through a web browser. The speaker shows how to make a request to the Django Horizon, which tries to contact Keystone to confirm the user’s identity.

Once approved, the user is sent to the next screen, where a response body is displayed. The response body contains all API calls, which are then populated onto the desktop.

40. How can the user access the desktop in the dashboard?

The user clicks on the desktop, clicks on the virtual machine, and then selects the storage option. The user then chooses an ID for the storage and creates Ubuntu. The system boots up using the specified image.

41. What is V M and how is it used in development and application purposes?

V M (Visible Memory) is used for development and application purposes to utilize keystone for authorization.

42. What is the case study of Time Warner Cable and R V Networks about?

The case study is about how Time Warner Cable, a leading cable company in the US, faced challenges due to the limitations of traditional analog to digital converters (ADCs) and the lack of advanced features in open-source solutions.

They sought an open stack solution with fully automated provisioning and integration with automation tools.

43. What were the challenges faced by Time Warner Cable?

Time Warner Cable faced challenges due to the limitations of traditional analog to digital converters (ADCs) and the lack of advanced features in open-source solutions.

44. How did Time Warner Cable address these issues?

Time Warner Cable addressed these issues by seeking an open stack solution with fully automated provisioning and integration with automation tools. They divided resources into three parts: compute, where processing takes place, and storage for metadata or related files. The networker would connect each service and everything to the internal network, while the virtualization layer would be placed on their own standard hardware.

45. What is the importance of a proper management system in maintaining the orchestration of virtual ADCs?

The R V Networks helped Time Warner Cable implement an open stack infrastructure, with tenants being application developers. The presentation highlights the importance of a proper management system to maintain the orchestration of virtual ADCs and the complexity of orchestrating them.

46. How did the open stack solution make provisioning easier for Time Warner Cable?

The open stack solution made provisioning easier for Time Warner Cable, as application developers can create their own instances using the open stack dashboard. This dashboard is controlled and centrally managed by the R V controller, which manages the open stack cloud. The I D team communicates with the R V controller, which handles application developer request and manages their environments.

47. What are some of the benefits of using V M for development and application purposes?

The presentation concludes by highlighting the benefits of using V M for development and application purposes.

Now let’s have a quick review on OpenStack in MCQ’S form.

1. What is the OpenStack?
a. A cloud-based service that provides various services and features to meet the needs of various industries
b. A virtual machine configuration tool
c. A database management system
d. A software development platform

2. What is the main focus of the development of apps and OpenStack with a focus on installation and configuration?
a) Development of cloud computing
b) Development of virtualization
c) Development of open stack architecture and provisioning
d) Development of hybrid cloud

3. What is the primary purpose of the live one-man classes and module-wise assessments available?
a) To provide additional course content
b) To provide students with an opportunity to take course content, assignments, projects, and multiple class questions
c) To provide students with additional resources for studying
d) To provide students with an opportunity to attend virtual classes

4. What is cloud computing?
a) A self-service driven model that allows users to work for the desired flavor of a computer, system, or server.
b) A system that encompasses application platforms, infrastructure, compute power, storage, and network.
c) A hardware virtualization process that creates virtual machines or instances.
d) A software virtualization process that creates virtual machines or instances.

5. What is virtualization in the context of cloud computing?
a) A process that creates virtual machines or instances.
b) A process that uses software hypervisors to virtualize a system’s hardware.
c) A process that uses hardware virtualization to create virtual machines or instances.
d) A process that provides access to resources in a cloud environment.

6. What is the difference between public and private clouds in the context of cloud computing?
a) Public clouds are used by organizations for internal purposes, while private clouds are used by the general public for public use.
b) Public clouds offer more control over infrastructure, while private clouds provide more control over the data and infrastructure.
c) Public clouds are used by organizations for public use, while private clouds are used by the general public for private use.
d) Public clouds offer more control over the data and infrastructure, while private clouds provide more control over infrastructure.

7. What is the cloud delivery model?
a) A service model
b) A combination of infrastructure, platform, and software
c) A model for software development
d) A model for infrastructure management

8. What are the building blocks of a cloud computing infrastructure as a service?
a) CPU, stacked memory, virtual network, VPNs, storage networks, web services
b) Server, storage, network, database
c) Application, platform, infrastructure
d) Storage, database, operating system

9. What is the process for getting open-stack for different environments?
a) Downloading Ubuntu server 14.04 or using a desktop question to down
b) Creating a mailing list for each service and a separate IRC for developers to join and share their projects
c) Submitting open-stack projects to the IRC for consideration
d) Writing a heat template to execute a call to heat, which executes the pre-written template and launches an instance to reduce usage

10. What is the recommended virtual machine memory usage?
A. 10 G B to 15 G B
B. 1 G B
C. 5 G B
D. 2 G B

By reading this OpenStack interview questions, I hope you’re now prepared to ace the OpenStackinterview; OpenStack has become quite simple to grasp, and I hope you’ve found all the knowledge you need to make an informed decision regarding OpenStack in this blog post.

All the best!!!