Azure 900

Question 1

What are the main components of cloud services?

Answer 1

Compute and Storage

Question 2

What is the shared responsibility model?

Answer 2

All on site means 100% responsibility of IT. Cloud uses shared responsibility model - done things are handled by the cloud provider, some things by the IT customer.

Question 3

What are the three models of services, from mostly managed by the cloud host to mostly managed by the IT customer?

Answer 3

SaaS - software as a service
PaaS - platform as a service
IaaS - infrastructure as a service

Question 4

With cloud services, the customer is always responsible for:

Answer 4

Information and data stored in the cloud

Devices that are allowed to connect to their cloud

Accounts and identities of the people, services and devices within the org

Question 5

In cloud services, the cloud provider is always responsible for

Answer 5

Physical data center
Physical network
Physical hosts

Question 6

What responsibilities are shared, depending on the service model

Answer 6

Operating systems
Network controls
Applications
Identity and infrastructure

Question 7

Define the 4 main cloud models

Answer 7

Private cloud: used and managed by a single entity, manage all hardware and updates

Public cloud: managed by cloud provider, general public availability, pay for use

Hybrid cloud: interconnected private and public cloud services. Most flexible.

Multi-cloud: 2 or more public cloud providers

Question 8

What is Azure Arc?

Answer 8

Set of technologies used to manage a cloud environment.

Question 9

What is Azure VMWare solution?

Answer 9

Allows you to run VMWare workloads in Azure

Question 10

What is the consumption based model and it’s benefits?

Answer 10

You pay for the cloud computing you consume or need. OpExp.

No upfront costs

No purchase or management of infrastructure that might not be needed.

Ability to buy more if needed, ability to stop paying if not needed

Question 11

Define cloud computing in the context of a pricing model

Answer 11

Cloud computing is the delivery of computing services over the Internet by using a pay-as-you-go pricing model. Like renting resources from someone else’s data center.

Question 12

What are 2 of the biggest considerations when building or deploying a cloud application?

Answer 12

Uptime or availability

Ability to handle demand or scale

Question 13

SLAs define what

Answer 13

Service Level Agreement

Uptime or availability

Expected downtime

Question 14

Define scalability in cloud computing

Answer 14

The ability to adjust resources to meet demand.

Question 15

In cloud computing, describe vertical and horizontal scaling

Answer 15

Vertical scaling: add or remove CPUs or RAM for more processing power

Horizontal scaling: deploy more or fewer resources like VMs or containers

Question 16

Define reliability

Answer 16

The ability of a system to recover from failures and continue to function. Decentralized design around the world

Question 17

Define predictability related to the cloud

Answer 17

Performance or cost predictability.

Performance predictability: auto scaling, load balancing, high availability

Cost predictability: ability to forecast the cost of the cloud spend. TCO total cost of ownership, pricing calculator

Question 18

Governance and Security benefits of cloud

Answer 18

Governance: policies and templates, easy to implement and update. Patching depending on model

Security: carrying degrees of control, DDOS protection

Question 19

Two types of manageability in the cloud

Answer 19

Management of the cloud: scaling, templated deployments, monitoring and failover, alerts

Management in the cloud: through the web, command line, APIs, powershell

Question 20

IaaS

Answer 20

Infrastructure as a service. Provider handles hardware, network connectivity and physical security. User responsible for everything else.

Question 21

IaaS scenarios

Answer 21

Lift and shift migration from on premises to cloud

Testing and development- rapidly spin up or down development and test environments

Question 22

PaaS describe

Answer 22

Cloud vendor handles IaaS stuff (physical infrastructure, physical security, connection to Internet) also licensing and patching of OS and databases

Question 23

PaaS scenarios

Answer 23

Development framework

Analytics or business intelligence

Question 24

Describe SaaS

Answer 24

Software as a service - using fully developed applications, like email, etc.