Paravirtualization differs from full virtualization in that:
- It doesn't isolate workloads.
- It doesn't require a hypervisor.
- It doesn't support live migration.
- It requires modification of the guest OS.
Paravirtualization requires modifying the guest OS to improve performance, whereas full virtualization does not require such modifications.
In the context of cloud deployment models, which type of cloud typically has a higher upfront cost due to infrastructure investments?
- Community Cloud
- Hybrid Cloud
- Private Cloud
- Public Cloud
Private Clouds are typically associated with higher upfront costs because organizations need to invest in their infrastructure and management. Public clouds share resources and costs with multiple organizations.
What distinguishes a hybrid cloud from a multi-cloud?
- Hybrid uses physical servers
- Mixing public and private clouds
- Multi-cloud combines different cloud service providers
- The use of multiple private clouds in a hybrid setup
A hybrid cloud combines public and private cloud infrastructure, whereas a multi-cloud involves using services from different cloud providers, which may not be public-private mix.
The cloud infrastructure that is provisioned for open use by the general public is termed as ________.
- Community
- Hybrid
- Private
- Public
The cloud infrastructure designed for use by the Public is accessible by individuals, businesses, and organizations. It is hosted and managed by a cloud service provider and offers services on a pay-as-you-go basis. Public clouds are shared resources, providing flexibility and cost-effectiveness.
A multinational corporation is looking for a cloud solution that can be accessed from any of their global locations, without any restrictions on the devices used. Which characteristic of cloud computing best fits their needs?
- Accessibility
- Elasticity
- On-Demand Usage
- Scalability
Accessibility is a key aspect of cloud computing that ensures that resources are available from anywhere, on any device, making it suitable for global use.
In which cloud model does an organization exclusively own and maintain the cloud infrastructure?
- Community Cloud
- Hybrid Cloud
- Private Cloud
- Public Cloud
In a "Private Cloud" model, an organization exclusively owns and maintains the cloud infrastructure. It is not shared with other organizations and is hosted on-premises or in a dedicated environment. This provides greater control and security but requires more resources.
In a microservices architecture, each service should ideally be:
- Loosely Coupled
- Stateful
- Stateless
- Tightly Coupled
In a microservices architecture, services should be loosely coupled to allow for flexibility, independent scaling, and easy replacement without affecting the entire system.
One potential drawback of SaaS for some businesses is the potential lack of ________ over the software's functionality and data.
- Accessibility
- Control
- Cost
- Customization
Control is a critical aspect that some businesses may worry about in a SaaS model, as they have limited control over the software's behavior and data.
When an organization opts for a cloud service where they only need to manage and configure the operating system, it is referred to as ________.
- Database as a Service (DBaaS)
- Infrastructure as a Service (IaaS)
- Platform as a Service (PaaS)
- Software as a Service (SaaS)
Infrastructure as a Service (IaaS) provides users with virtualized infrastructure components. Organizations manage and configure the operating system, applications, and data on top of this infrastructure while leaving hardware management to the cloud provider.
An organization wants to optimize its cloud costs. They decide to focus on analyzing and optimizing their allocated and used cloud resources. Which part of the cloud architecture should they primarily focus on?
- Cost monitoring tools
- Reserved instances
- Resource tagging and categorization
- Resource utilization analysis
To optimize cloud costs, the organization should focus on analyzing resource utilization and efficiency, identifying underused resources, and rightsizing.