Podcast
Questions and Answers
Which statement best describes the essential characteristic of 'on-demand self-service' in cloud computing?
Which statement best describes the essential characteristic of 'on-demand self-service' in cloud computing?
- The provider's ability to monitor resource usage for billing purposes.
- The ability for consumers to unilaterally provision computing resources as needed without human interaction with the provider. (correct)
- The provider's ability to automatically allocate resources based on predicted demand patterns.
- The ability for consumers to automatically adjust the amount of resources used.
How does resource pooling, an essential cloud characteristic, benefit cloud consumers?
How does resource pooling, an essential cloud characteristic, benefit cloud consumers?
- By dynamically assigning and reassigning resources based on consumer demand, leading to more efficient utilization. (correct)
- By ensuring that consumers only share resources with other consumers in the same geographic region.
- By allowing consumers to have dedicated hardware resources.
- By giving consumers direct control over the physical location of their data.
In the context of cloud computing, what does the term 'Rapid Elasticity' refer to?
In the context of cloud computing, what does the term 'Rapid Elasticity' refer to?
- The ability to rapidly switch between different cloud service providers.
- The ability to automatically and quickly scale computing resources up or down as needed. (correct)
- The ability to quickly change the operating system of a virtual machine.
- The speed at which data is transferred between different cloud data centers.
What advantage does 'measured service' provide to both cloud providers and consumers?
What advantage does 'measured service' provide to both cloud providers and consumers?
In the context of cloud computing, what is the primary focus of Infrastructure as a Service (IaaS)?
In the context of cloud computing, what is the primary focus of Infrastructure as a Service (IaaS)?
A development team needs a comprehensive environment to build, test, and deploy applications without managing the underlying servers. Which cloud service model is most suitable for them?
A development team needs a comprehensive environment to build, test, and deploy applications without managing the underlying servers. Which cloud service model is most suitable for them?
A company wants to provide its employees with access to a suite of applications, like CRM and email, over the internet. Which cloud service model aligns with this requirement?
A company wants to provide its employees with access to a suite of applications, like CRM and email, over the internet. Which cloud service model aligns with this requirement?
What is the key difference between IaaS and PaaS regarding resource management?
What is the key difference between IaaS and PaaS regarding resource management?
If an organization requires complete control over its data and infrastructure for compliance reasons, which cloud deployment model is most suitable?
If an organization requires complete control over its data and infrastructure for compliance reasons, which cloud deployment model is most suitable?
Several organizations with shared concerns about security, compliance, and performance decide to pool their resources to create a cloud environment. Which deployment model best fits this scenario?
Several organizations with shared concerns about security, compliance, and performance decide to pool their resources to create a cloud environment. Which deployment model best fits this scenario?
An organization wants to leverage the cost savings of a public cloud for non-sensitive workloads but needs to keep sensitive data in a private cloud for security. Which cloud deployment model would they use?
An organization wants to leverage the cost savings of a public cloud for non-sensitive workloads but needs to keep sensitive data in a private cloud for security. Which cloud deployment model would they use?
Which of the following is a defining characteristic of a public cloud?
Which of the following is a defining characteristic of a public cloud?
What is a primary advantage of using cloud computing in terms of cost and management?
What is a primary advantage of using cloud computing in terms of cost and management?
How does cloud computing contribute to reduced time to deployment for applications and services?
How does cloud computing contribute to reduced time to deployment for applications and services?
What benefit does cloud computing offer in terms of scaling resources?
What benefit does cloud computing offer in terms of scaling resources?
Which of the following best describes the improvement in reliability offered by cloud computing?
Which of the following best describes the improvement in reliability offered by cloud computing?
How does cloud computing contribute to sustainability?
How does cloud computing contribute to sustainability?
Which of the following statements about Amazon Web Services (AWS) is most accurate?
Which of the following statements about Amazon Web Services (AWS) is most accurate?
Which of the following services is a key offering within the Infrastructure as a Service (IaaS) category on AWS?
Which of the following services is a key offering within the Infrastructure as a Service (IaaS) category on AWS?
When considering cloud computing infrastructure, what is the role of a 'hypervisor'?
When considering cloud computing infrastructure, what is the role of a 'hypervisor'?
Flashcards
Cloud Computing
Cloud Computing
A model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources that can be rapidly provisioned and released with minimal management effort or service provider interaction.
Cloud Definition
Cloud Definition
A cloud is a collection of network-accessible hardware and software resources.
Cloud Model
Cloud Model
Consumers can hire IT resources as services.
Infrastructure as a Service (IaaS)
Infrastructure as a Service (IaaS)
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Platform as a Service (PaaS)
Platform as a Service (PaaS)
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Software as a Service (SaaS)
Software as a Service (SaaS)
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Public Cloud
Public Cloud
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Private Cloud
Private Cloud
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Community Cloud
Community Cloud
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Hybrid Cloud
Hybrid Cloud
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Cost & Management (Cloud)
Cost & Management (Cloud)
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Reduced Time to Deployment (Cloud)
Reduced Time to Deployment (Cloud)
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Scaling (Cloud)
Scaling (Cloud)
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Reliability (Cloud)
Reliability (Cloud)
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Sustainability (Cloud)
Sustainability (Cloud)
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Google Compute Engine
Google Compute Engine
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Google App Engine
Google App Engine
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Amazon Web Services (AWS)
Amazon Web Services (AWS)
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Amazon EC2
Amazon EC2
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Amazon S3
Amazon S3
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Study Notes
Introduction to Cloud Computing
- Cloud computing enables ubiquitous, convenient, and on-demand network access to a shared pool of configurable computing resources like servers, storage, networks, applications, and services.
- Resources are rapidly provisioned and released
- It involves minimal management effort or service provider interaction.
- A cloud comprises network-accessible hardware and software resources.
- It consists of IT resource pools in data centers.
- Cloud model lets consumers hire IT resources as services.
Essential Cloud Characteristics
- On-demand self-service: Users can unilaterally provision computing resources as needed automatically
- Broad network access: Capabilities are available over the network and accessed through standard mechanisms.
- Resource pooling: Provider's computing resources are pooled to serve multiple consumers using a multi-tenant model, with resources dynamically assigned and reassigned.
- Rapid elasticity: Capabilities can be elastically provisioned and released, scaling rapidly outward and inward based on demand.
- Measured service: Cloud systems automatically control and optimize resource use by leveraging a metering capability.
Cloud Service Models:
- Cloud infrastructure supports three service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS).
Infrastructure as a Service (IaaS):
- Provides consumers with the ability to provision processing, storage, networks, and other fundamental computing resources.
- Consumers can deploy and run arbitrary software, including operating systems and applications.
- Consumers do not manage or control the underlying cloud infrastructure but have control over operating systems, storage, deployed applications, and possibly select networking components.
Platform as a Service (PaaS):
- Offers consumers the capability to deploy consumer-created or acquired applications onto the cloud infrastructure.
- Applications are created using programming languages, libraries, services, and tools supported by the provider (e.g., Google App Engine, Heroku, Microsoft Azure).
- Consumers do not manage or control the underlying cloud infrastructure, but have control over the deployed applications and possibly configuration settings for the application-hosting environment.
Software as a Service (SaaS):
- Permits consumers to use the provider's applications running on a cloud infrastructure.
- Applications are accessible from various client devices through a thin client interface like a web browser (e.g., web-based email).
- Consumers do not manage or control the underlying cloud infrastructure, including network, servers, operating systems, storage, or individual application capabilities, except for limited user-specific application configuration settings.
Cloud Deployment Models
- Public Cloud: Cloud infrastructure is available to the general public or a large industry group and is owned by an organization selling cloud services.
- Private Cloud: Cloud infrastructure is for exclusive use by a single organization, supporting multiple internal consumers.
- Community Cloud: Cloud infrastructure is for exclusive use by a specific community of consumers with shared concerns.
- Hybrid Cloud: Cloud infrastructure is a composition of two or more distinct cloud infrastructures (private, community, or public) that remain unique entities but are bound together.
Google Cloud Platform
- Google Cloud Platform includes Static External IP Addresses and is divided into Zones and Regions for VMs and Disks.
- Compute Engine enables virtual machines hosted on Google’s infrastructure as Infrastructure-as-a-Service.
- App Engine allows you to deploy code directly to a fully-managed platform as Platform-as-a-Service.
- Container Engine runs a Docker container cluster on Google Cloud Platform as Container-as-a-Service.
- Cloud SQL offers full SQL support for an online transaction processing (OLTP) system.
- Cloud Datastore stores highly structured objects and query with SQL-like statements.
- Cloud Storage stores immutable blobs larger than 10 MB, such as large images or videos.
- Cloud BigTable is a high-performance, extremely scalable NoSQL database that scales to billions of entries.
Amazon Web Services (AWS)
- AWS encompasses Amazon's web-based technology services.
- AWS primarily offers infrastructure services like Amazon Elastic Compute Cloud (EC2), Amazon Simple Storage Service (S3), Amazon Simple Queue Service (SQS), Amazon CloudFront, and Amazon SimpleDB.
- Amazon Web Services provides Compute, Storage, Databases, Networking, and many more services.
- Cross-Service includes Support, Marketplace, Management Console, SDKs, IDE kits and CLIs.
Microsoft Azure
- Microsoft Azure offers various services, organized into app services, data services, and infrastructure services.
Cloud Benefits
- Cost & management benefits arise from economies of scale and “out-sourced” resource management.
- Reduced Time to deployment is achieved through ease of assembly and "out of the box" functionality.
- Scaling is facilitated by on-demand provisioning and co-location of data and compute resources.
- Reliability is enhanced through massive, redundant, shared resources.
- Sustainability is improved because hardware is not owned.
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