20 vCloud Director Interview Questions and Answers

vCloud Director is a powerful cloud management platform used by businesses of all sizes. If you’re interviewing for a position that involves vCloud Director, you can expect to be asked questions about your knowledge and experience with the platform. In this article, we’ll review some of the most common vCloud Director interview questions and provide tips on how to answer them.

vCloud Director Interview Questions and Answers

Here are 20 commonly asked vCloud Director interview questions and answers to prepare you for your interview:

1. What is vCloud Director?

vCloud Director is a software solution that allows you to create and manage virtual data centers, also known as vDCs. With vCloud Director, you can provision and manage virtual machines, networking, and storage resources in a vDC. You can also create and manage user accounts, and control access to vDC resources.

2. Can you explain what a catalog is in the context of vCloud Director?

A catalog in vCloud Director is a collection of virtual machines and/or vApps templates that are made available to users. Users can then deploy new virtual machines and/or vApps from the catalog.

3. What are the different types of catalogs available in vCloud Director?

There are three types of catalogs available in vCloud Director:

1. Organization catalog: This catalog is created and managed by the vCloud administrator and is made available to all users in the organization.

2. External catalog: This catalog is created and managed by an external provider and is made available to vCloud users who have been granted access by the provider.

3. Local catalog: This catalog is created and managed by a user and is only available to that user.

4. How does cloud bursting work with vCloud Director?

Cloud bursting is a feature of vCloud Director that allows you to dynamically expand your cloud capacity by connecting to an external cloud provider. This is useful if you have a sudden spike in demand that exceeds your current capacity. By connecting to an external cloud provider, you can quickly and easily expand your capacity to meet the demand.

5. Can you give me some examples of common use cases for vCloud Director?

vCloud Director is a cloud computing platform that allows users to create and manage virtual data centers. It is often used by businesses that need to quickly provision new IT resources, or by service providers that need to offer cloud-based services to their customers. Some common use cases for vCloud Director include creating test and development environments, hosting web applications, and providing disaster recovery services.

6. Can you explain the concept of VLAN tagging and how it works in vCloud Director?

VLAN tagging is a process of adding identifying labels, or tags, to packets of data so that they can be routed correctly through a network. In vCloud Director, VLAN tagging is used to allow virtual machines to communicate with each other and with external networks. Each virtual machine is assigned a unique VLAN ID, and all of the traffic between virtual machines is routed through this ID. This ensures that each virtual machine remains isolated from the others on the network.

7. What’s the difference between vCloud Director and other virtualization solutions like VMware ESX, Microsoft Hyper-V, or OpenStack?

The main difference between vCloud Director and other virtualization solutions is that vCloud Director is designed specifically for cloud computing. This means that it is able to provide a number of features and benefits that are not found in other virtualization solutions, such as the ability to easily create and manage multiple virtual datacenters, the ability to dynamically allocate resources between different virtual machines, and more.

8. What are roles in vCloud Director?

Roles in vCloud Director are used to control user access to the various features and functions of the vCloud Director interface. There are a number of built-in roles, such as the vCloud Administrator role, which provides full access to all vCloud Director features, or the vApp User role, which provides limited access to only those features related to working with vApps. Organizations can also create custom roles with specific permissions to match the needs of their users.

9. What are the differences between an organization and an organization administrator?

An organization is a group of users who have been given access to a shared set of resources, while an organization administrator is a user who has been given the ability to manage those resources.

10. What is the purpose of OAuth tokens?

OAuth tokens are used to authenticate vCloud Director users. When a user attempts to log in to vCloud Director, they will be prompted for their OAuth token. This token is then used to verify the user’s identity and grant them access to the vCloud Director interface.

11. Can you explain what IAM access control policies are?

IAM access control policies are the set of rules that govern who has access to what resources within vCloud Director. These policies can be used to restrict access to certain areas of the system, or to grant specific permissions to users or groups of users.

12. Can you describe the process by which users can acquire a token from a provider vDC?

When a user attempts to access a provider vDC, vCloud Director checks to see if the user has a valid access token. If the user does not have a valid token, vCloud Director will generate one and return it to the user.

13. Can you explain the role of a portal user and the type of access they have?

A portal user is a user who has been given access to the vCloud Director portal, which is a web-based interface for managing and interacting with vCloud Director. Portal users have limited access and can only perform certain actions, such as creating and managing virtual machines, networking, and storage.

14. What is the maximum number of organizations that can be created on vCloud Director?

The maximum number of organizations that can be created on vCloud Director is 100.

15. What are vApps?

A vApp is a container that can hold one or more virtual machines, and is used to package and distribute applications in vCloud Director.

16. What are the main components of a vApp?

The main components of a vApp are the vApp settings, the vApp network, and the vApp children. The vApp settings include things like the name, description, and memory allocation for the vApp. The vApp network defines how the vApp will connect to other networks, and the vApp children are the individual virtual machines that make up the vApp.

17. What is the purpose of having multiple virtual machines within a single vApp?

There are a few reasons for having multiple virtual machines within a single vApp. One reason is for the purposes of resource sharing. If you have multiple virtual machines that need to access the same resources, then it can be more efficient to have them all within the same vApp. Another reason is for the purposes of security. By keeping multiple virtual machines within the same vApp, you can more easily control and monitor their access to resources.

18. What is the minimum amount of memory needed to run vCloud Director server?

The minimum amount of memory needed to run vCloud Director server is 4 GB.

19. What is the maximum number of logical CPUs allowed for vCloud Director server?

The maximum number of logical CPUs allowed for vCloud Director server is 32.

20. What are the various ways you can deploy vCloud Director?

There are three ways to deploy vCloud Director:

1. OVA file – this is a pre-configured virtual appliance that you can simply deploy and begin using

2. Installable software – this is a more traditional installation where you install the software on a server and then configure it accordingly

3. vCloud Director Cell – this is a clustered deployment option that is typically used for larger deployments