Module 3 Flashcards
Infrastructure as a service
- The cloud provider manages the physical resources, data centers, cooling power, network and security
- The networking and storage resources are virtualized by the vendor so a user can access and configure them the way they want
Platform as a service
The cloud provider manages the platform infrastructure -operating systems, development tools, databases and business analytics
- The user is only responsible for application code and its maintainance
- User pays on usage basis
User/persona Iaas
IT admin
User/persona Paas
Developer
Software as a service
- The cloud provider hosts and manages the applications and data
- The user doesn’t have to install or update software
- Charged via subscription model
User/Persona
Anyone
Paas Clouds
Provide a level of abstraction to users, eliminating the complexity of deploying applications, configuring infrastructures, and provisioning and configuring supporting technologies like load balancers
Paas Runtimes
Executes end-user code according to policies set by the application owner and cloud provider
Paas offerings
support a range of application infrastructure (or middleware) capabilities (e.g., servers, database management systems, business analytics services, mobile back-end services, business process management systems, rules engines and complex event-processing systems).
Essential Characteristics of Paas
Paas Clouds, Paas runtimes, Paas Offerings
Advantages of Paas
Scalability, greater agility and innovation, middleware capabilities
Disadvantages of Paas
- Information security threats
- Services impacted when provider’s infrastructure experiences downtime.
- Customers do not have direct control over the changes that may take place by the provider, affecting strategy, service offerings and/or tools.
Key characteristics Saas
- SaaS clouds have a multitenant architecture.
- Infrastructure and code are centrally maintained and accessed by all users.
- SaaS makes it easy for users to manage privileges, monitor data use, and ensure everyone sees the same information at the same time.
- Security, compliance, and maintenance are all part of the offering.
- Users can customize applications to fit their business processes with point-and-click ease.
- Users can customize the user interface (UI) to work with branding guidelines; they can modify data fields and enable or disable features within business processes. These customizations are preserved through upgrades.
- Users pay for the use of the services via a subscription model.
- Resources can be scaled easily, depending on the service needs.
Public Cloud
n the public cloud model, the service provider owns, manages, provisions, and maintains the physical infrastructure such as data centers, servers, networking equipment, and storage, with users accessing virtualized compute, networking, and storage resources as services.
Private Cloud
NIST defines private cloud as cloud infrastructure provisioned for exclusive use by a single organization comprising multiple consumers such as the business units within the organizations.
VPC
A VPC is a public cloud offering that lets an organization establish its own private and secure cloud-like computing environment in a logically isolated part of a shared public cloud.
Hybrid Cloud
Hybrid cloud is a computing environment that connects an organization’s on-premises private cloud and third-party public cloud into a single, flexible infrastructure for running the organization’s applications and workloads.
Types of Hybric clouds
Monocloud, multicloud, composite multicloud
You have been working with a client to secure a business deal involving one of their infrastructure platforms; subsequently, they have decided to implement IaaS for the wide range of services it provides. Who will be the typical user for IaaS?
System administrator
In which of the following service models does the cloud service provider take responsibility for the installation, configuration, and operation of the application infrastructure?
Paas
Which of the following represents a use case for SaaS?
Leveraging it to avoid the need for ongoing upgrades, maintenance, and patching.
It may be owned, managed, and operated by the organization, a third party, or some combination of those functions and may exist on or off premises identifies characteristics of which cloud deployment model?
Private Cloud
Interoperability, scalability, and portability are key tenets of which one of the following cloud deployment models?
Hybrid
Which of the following is a benefit of the hybrid cloud deployment model?
It offers resource optimization.
Which of the following describes a use case for the public cloud?
Using it for computing resources to build secondary infrastructures for disaster recovery, data protection, and business continuity.
Which of the following describes a use case for the private cloud?
Providing an opportunity to modernize and unify an organization’s in-house and legacy applications.
A virtualized, multi-tenant architecture enabling tenants or users to share computing resources residing outside their firewalls best describes a characteristic for which cloud type?
Public cloud
Which of the following is considered a use case for a public cloud?
Increasingly opting to access cloud-based applications and platforms so an organization’s teams can focus on building and testing applications and platforms, thus reducing time-to-market for their products and services.
