Azure - Revision Quiz 01

What is the shared responsibility model in cloud computing?

• A model where the cloud provider is responsible for all aspects of security.

• A model where the customer is responsible for all aspects of security.

• A model where both the cloud provider and the customer share responsibilities for security.

• A model where neither the cloud provider nor the customer is responsible for security.

Answer explanation

The shared responsibility model in cloud computing means that both the cloud provider and the customer are responsible for security. The provider secures the infrastructure, while the customer secures their applications and data.

What is a private cloud?

• A cloud model where resources are exclusively used by one organisation

• A cloud model where resources are shared among multiple organisations

• A cloud model that combines both private and public cloud features

• A cloud model that is accessible to the general public

Answer explanation

A private cloud is a cloud model where resources are exclusively used by one organization, ensuring greater control and security compared to shared or public cloud models.

Which cloud model provides the most flexibility?

• Public cloud

• Private cloud

• Hybrid cloud

• All

Answer explanation

The public, private, and hybrid cloud models all offer flexibility, but the public cloud is often considered the most flexible due to its scalability and on-demand resources, allowing users to easily adjust their services as needed.

Which of the following is a benefit of the consumption-based model in cloud computing?

• High upfront costs

• No upfront costs

• Fixed monthly fees

• Unlimited resources

Answer explanation

The consumption-based model in cloud computing allows users to pay only for the resources they use, resulting in no upfront costs. This is a key advantage over traditional models that often require significant initial investments.

Azure Arc is used for:

• Managing hybrid cloud environments

• Developing mobile applications

• Creating virtual machines

• Designing websites

Answer explanation

Azure Arc is primarily used for managing hybrid cloud environments, allowing organizations to extend Azure management capabilities to on-premises and multi-cloud resources.

What is one of the benefits of using a cloud-based model over a traditional datacentre?

• You need to purchase more hardware.

• You pay for extra capacity.

• You only pay for the resources you use.

• You need to manage your own infrastructure.

Answer explanation

One of the key benefits of a cloud-based model is that you only pay for the resources you use, unlike traditional datacentres where you often have to invest in excess hardware and manage infrastructure.

What is the concept of high availability in cloud computing?

• Ensuring that a system is continuously operational for a long period of time

• Reducing the cost of cloud services

• Increasing the speed of data processing

• Enhancing the security of cloud data

Answer explanation

High availability in cloud computing refers to ensuring that a system is continuously operational for a long period of time, minimizing downtime and maintaining service reliability.

What is scalability in cloud computing and why is it important?

• Scalability is the ability to increase or decrease IT resources as needed, and it is important for handling varying workloads efficiently.

• Scalability refers to the security measures in cloud computing, and it is important for protecting data.

• Scalability is the process of backing up data in the cloud, and it is important for data recovery.

• Scalability is the method of encrypting data in the cloud, and it is important for data privacy.

Answer explanation

Scalability in cloud computing refers to the ability to adjust IT resources as needed, which is crucial for efficiently managing fluctuating workloads and ensuring optimal performance.

What is the difference between vertical scaling and horizontal scaling in cloud computing?

• Vertical scaling involves adding more resources to a single server, while horizontal scaling involves adding more servers.

• Vertical scaling involves adding more servers, while horizontal scaling involves adding more resources to a single server.

• Vertical scaling and horizontal scaling both involve adding more servers.

• Vertical scaling and horizontal scaling both involve adding more resources to a single server.

Answer explanation

The correct choice states that vertical scaling adds more resources to a single server, while horizontal scaling adds more servers. This distinction is crucial in cloud computing for understanding how to manage resources effectively.

What is the most complete cloud service model from a product perspective?

• Infrastructure as a Service (IaaS)

• Platform as a Service (PaaS)

• Software as a Service (SaaS)

• Function as a Service (FaaS)

Answer explanation

Software as a Service (SaaS) is the most complete cloud service model as it provides fully functional software applications over the internet, eliminating the need for users to manage infrastructure or platforms.