Describe cloud computing Flashcards
(27 cards)
What is cloud computing?
The delivery of computing services over the internet
What services does Microsoft Azure provide? (7)
- Virtual machines
- Storage
- Databases
- Networking
- IoT
- Machine learning
- Artificial intelligence
Describe the shared responsibility model
The responsibilities of the cloud infrastructure (security, physical space & software) is shared between the cloud provider and the consumer
Which responsibilities are the cloud provider always responsible for in the shared responsibility model? (4)
- Physical security
- Power
- Cooling
- Network connectivity
Which responsibilities are the consumer always responsible for in the shared responsibility model? (4)
- Data and information stored in the cloud
- Devices that are allowed to connecting to your cloud
- The accounts and identities of the people, services and devices within your organisation
Which cloud service type places the most responsibility on the consumer?
IaaS
Which cloud service type places the most responsibility on Microsoft?
SaaS
When would the consumer be responsible for SQL database management?
When they choose to deploy it on a virtual machine - they will then be responsible for database patches and updates
What is meant by the deployment type of cloud resources?
How many entities have access to the cloud
What is a private cloud?
Cloud infrastructure which is used by a single entity
What is a public cloud?
Cloud infrastructure that is built, controlled, and maintained by a third-party cloud provider and has general public availability
What is a hybrid cloud?
A computing environment that uses both public and private clouds in an inter-connected environment (can provide more security as you can decide which services to keep in private cloud environment)
What is the benefit of a hybrid cloud?
Users can flexibly choose which services to keep in public cloud and which to deploy to their private cloud infrastructure
What is a multi-cloud?
The use of multiple public cloud providers
What are the benefits of the consumption based model? (4)
- No upfront costs
- No need to purchase and manage costly infrastructure that users might not use to its fullest potential
- The ability to pay for more resources when they’re needed
- The ability to stop paying for resources that are no longer needed
Where can service uptime guarantees be found?
In the service level agreement (SLA) for each Azure service
What is meant by high availability?
Services will be functioning regardless of disruptions or events that may occur
What is the difference between vertical and horizontal scaling?
Horizontal scaling adds more machines to a system to distribute the load, while vertical scaling improves the capabilities of existing machines
What is meant by reliability?
the ability of a system to recover from failures and continue to function
What is the benefit of the cloud’s decentralised design?
resources are deployed in different regions around the world so if one region has a catastrophic event other regions are still up and running
What two types of predictability does the Microsoft Well-Architected Framework heavily influence?
Performance and cost
What three things can support performance predictability?
- Autoscaling
- Load balancing
- High availability
Which tool can help you get an idea of your potential cloud spend?
the pricing calculator
How can you manage your cloud resources (4)
- Through a web portal.
- Using a command line interface.
- Using APIs.
- Using PowerShell.
