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Azure Fundamentals (AZ-900) > Describe cloud computing > Flashcards

Describe cloud computing Flashcards

1
Q

What is cloud computing?

A

The delivery of computing services over the internet

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2
Q

What services does Microsoft Azure provide? (7)

A
  1. Virtual machines
  2. Storage
  3. Databases
  4. Networking
  5. IoT
  6. Machine learning
  7. Artificial intelligence
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3
Q

Describe the shared responsibility model

A

The responsibilities of the cloud infrastructure (security, physical space & software) is shared between the cloud provider and the consumer

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4
Q

Which responsibilities are the cloud provider always responsible for in the shared responsibility model? (4)

A
  1. Physical security
  2. Power
  3. Cooling
  4. Network connectivity
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5
Q

Which responsibilities are the consumer always responsible for in the shared responsibility model? (4)

A
  1. Data and information stored in the cloud
  2. Devices that are allowed to connecting to your cloud
  3. The accounts and identities of the people, services and devices within your organisation
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6
Q

Which cloud service type places the most responsibility on the consumer?

A

IaaS

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7
Q

Which cloud service type places the most responsibility on Microsoft?

A

SaaS

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8
Q

When would the consumer be responsible for SQL database management?

A

When they choose to deploy it on a virtual machine - they will then be responsible for database patches and updates

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9
Q

What is meant by the deployment type of cloud resources?

A

How many entities have access to the cloud

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10
Q

What is a private cloud?

A

Cloud infrastructure which is used by a single entity

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11
Q

What is a public cloud?

A

Cloud infrastructure that is built, controlled, and maintained by a third-party cloud provider and has general public availability

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12
Q

What is a hybrid cloud?

A

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)

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13
Q

What is the benefit of a hybrid cloud?

A

Users can flexibly choose which services to keep in public cloud and which to deploy to their private cloud infrastructure

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14
Q

What is a multi-cloud?

A

The use of multiple public cloud providers

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15
Q

What are the benefits of the consumption based model? (4)

A
  1. No upfront costs
  2. No need to purchase and manage costly infrastructure that users might not use to its fullest potential
  3. The ability to pay for more resources when they’re needed
  4. The ability to stop paying for resources that are no longer needed
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16
Q

Where can service uptime guarantees be found?

A

In the service level agreement (SLA) for each Azure service

17
Q

What is meant by high availability?

A

Services will be functioning regardless of disruptions or events that may occur

18
Q

What is the difference between vertical and horizontal scaling?

A

Horizontal scaling adds more machines to a system to distribute the load, while vertical scaling improves the capabilities of existing machines

19
Q

What is meant by reliability?

A

the ability of a system to recover from failures and continue to function

20
Q

What is the benefit of the cloud’s decentralised design?

A

resources are deployed in different regions around the world so if one region has a catastrophic event other regions are still up and running

21
Q

What two types of predictability does the Microsoft Well-Architected Framework heavily influence?

A

Performance and cost

22
Q

What three things can support performance predictability?

A
  1. Autoscaling
  2. Load balancing
  3. High availability
23
Q

Which tool can help you get an idea of your potential cloud spend?

A

the pricing calculator

24
Q

How can you manage your cloud resources (4)

A
  1. Through a web portal.
  2. Using a command line interface.
  3. Using APIs.
  4. Using PowerShell.
25
Q

What are the three cloud service types?

A
  1. Software as a Service
  2. Platform as a Service
  3. Infrastructure as a Service
26
Q

What is the benefit of PaaS?

A

it is designed to give users access to the components they require to quickly develop and operate web or mobile applications over the Internet, without worrying about setting up or managing the underlying infrastructure of servers, storage, networks, and databases.

27
Q

Example use cases of SaaS (3)

A
  1. Email and messaging
  2. Business productivity applications
  3. Finance and expense tracking

Azure Fundamentals (AZ-900) (3 decks)

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