Let us do a knowledge check based on the previous article - Azure Cloud Fundamentals
1. What is cloud computing
a. Delivery of computing services over the internet
b. Delivery of storage services over the internet
c. Delivery of websites accessible via the internet
2. Which cloud model uses some datacenters focused on providing cloud services to anyone that wants them, and some data centers that are focused on a single customer?
a. Public cloud
b. Hybrid cloud
c. Multi-cloud
3. According to the shared responsibility model, which cloud service type places the most responsibility on the customer?
a. Infrastructure as a Service (IaaS)
b. Software as a Service (SaaS)
c. Platform as a Service (PaaS)
4. Which type of scaling involves adding or removing resources (such as virtual machines or containers) to meet demand?
a. Vertical Scaling
b. Horizontal Scaling
c. Direct scaling
5. What is characterized as the ability of a system to recover from failures and continue to function?
a. Reliability
b. Predictability
c. Scalability
Answers:
1-a Cloud computing is the delivery of computing services over the internet.
2-b The hybrid cloud model is a combination of public cloud and private cloud, using both datacenters dedicated solely to one customer and datacenters that are shared with the public.
3-a IaaS places the most responsibility on the consumer, with the cloud provider being responsible or the basics of physical security, power, and connectivity.
4-b Horizontal scaling is adding or subtracting the number of resources
5-a Reliability is the ability of a system to recover from failures and continue to function, and it is one of the pillars o the Microsoft Azure Well-Architected Framework
6. Which cloud service type is most suited to a lift and shift migration from an on-premises datacenter to a cloud deployment?
a. Infrastructure as a Service (IaaS)
b. Platform as a Service (PaaS)
c. Software as a Service (SaaS)
7. What type of cloud service type would a Finance and Expense tracking solution typically be in ?
a. Infrastructure as a Service (IaaS)
b. Platform as a Service (PaaS)
c. Software as a Service (SaaS)
8. A company wants to deploy multiple servers to host web applications. It wishes to keep hardware costs and management costs to a minimum. The solution should be highly scalable. Which type of cloud model should it use?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
9. A company wants to maintain control over hardware and infrastructure. The solution can be physically deployed offsite. Which type of cloud model should it use?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
10. A company wants to use an SaaS (Software as a Service) application and wants to minimize costs. The company is legally required to maintain and secure all data onsite. Which type of cloud model should it use?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
Answers:
6-a With an IaaS service type, you can approximate your on-premises environment, making a lift-and-shift transition to the cloud relatively straightforward.
7-c SaaS provides access to software solutions, such as finance and expense tracking, email, or ticketing systems.
8-a Public cloud - Deploying on a public cloud keeps eliminates upfront hardware costs (CapEx). Also, as the hardware is managed by cloud provider (Azure), scalability is a built-in feature and easy to enable.
9-c Private cloud - Since the company wants to keep control over hardware management, private cloud is the appropriate choice here
10-b Hybrid cloud - Since the company wants to keep all data onsite (on-premises), but is okay to use a SaaS application on cloud, the hybrid cloud model is appropriate here, as it allows you to combine features of public and private cloud. The SaaS application can be deployed on the public cloud, while the data can be stored on a private or on-premise cloud.
11. An Azure web application connects to an Azure SQL Database. Which type of cloud model is this?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
12. An Azure WebJob that makes calls to the Azure REST API. Which type of cloud model is this?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
13. An Azure Function that crawls the web for trending news. Which type of cloud model is this?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
14. The public cloud model allows you to deploy resources without managing the underlying hardware infrastructure.
a. True
b. False
15. The hybrid cloud model allows you to deploy resources with no capital expenditure and very minimal IT staffing.
a. True
b. False
Answers:
11-a Public cloud model - In a public cloud model, only Azure resources are used. No on-premise resources are used in this scenario.
12-a Public cloud model - In a public cloud model, only Azure resources are used. No on-premise resources are used in this scenario.
13-a Public cloud model - In a public cloud model, only Azure resources are used. No on-premise resources are used in this scenario.
14-a True - In the public cloud the hardware devices exist in Azure datacenters - the user is only required to manage the configuration of those devices.
15-b False - In hybrid cloud model, there is some capital expenditure (CapEx) involved in buying physical resources upfront for the section dedicated to private cloud, if the private cloud is maintained on-premise. Maintaining those physical resources also requires IT expertise.
16. The private cloud model allows you to deploy resources with minimal IT staffing.
a. True
b. False
17. Using Private and public cloud is an example of hybrid cloud infrastructure.
a. True
b. False
18. Using multiple public clouds is an example of hybrid cloud infrastructure.
a. True
b. False
19. Using on-premise and private cloud is an example of hybrid cloud infrastructure.
a. True
b. False
20. Using on-premise and public cloud is an example of hybrid cloud infrastructure.
a. True
b. False
Answers:
16-b False - In private cloud model, if the cloud is on-premise, then some IT expertise is needed to maintain the infrastructure. If the private cloud is maintained by 3rd party cloud vendor however, then IT expertise is not needed.
17-a True - Hybrid cloud is a combination of Private and Public cloud
18-b False - Using multiple public clouds is known as Multiple Cloud. On the other hand, Hybrid cloud is a combination of Private and Public cloud.
19-b False - Hybrid cloud is a combination of Private and Public cloud
20-a True - Hybrid cloud is a combination of Private and Public cloud. On-Premise cloud is also categorized as a type of private cloud.
21. Azure reduces CapEx costs by allowing you to reduce the level of IT staffing that is required to maintain on-premises applications and services.*
a. True
b. False*
22. Azure lowers CapEx costs by reducing the amount of maintenance that is associated with the configuration of firewalls
a. True
b. False
23. Azure lowers CapEx costs by allowing you to pay annually for its PaaS (Platform as a Service) offerings
a. True
b. False
24. Azure lowers CapEx costs by allowing you to pay monthly based on usage rather than pay upfront for physical hardware.*
a. True
b. False*
25. An organization wants to create a virtual network with 20 VMs, but with no capital expenditure (CapEx) costs. Which cloud model is suitable here?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
Answers:
21-b False - Azure does not necessarily allow you to reduce the IT expertise and staffing required to maintain on-premises applications and services. Note that IT staffing is not required for maintaining hardware infrastructure in Azure public cloud, but the organization still needs IT staff to maintain its on-premises applications and services.
22-b False - Azure does not reduce the amount of maintenance that is associated with configuring firewalls. Even though Azure eliminates the need to perform physical cabling of networks, it still requires you to configure software.
23-b False - Azure does not allow you to pay annually to reduce costs associated with PaaS offerings. It allows you to pay annually only for some IaaS offerings such as VMs, through reserved VM instances.
24-a True - CapEx refers to upfront money that is spent on hardware infrastructure. Azure public cloud allows you to pay as per usage, thus eliminating CapEx costs.
25-a Public cloud - Public cloud is the appropriate model here as it eliminates capital expenditure (you don't have to buy hardware) and allows you to pay based on usage.
26. An organization wants control over the methods used for the security of resources. Which cloud model is suitable here?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
27. An organization does not have IT experts or the money to purchase its own servers. Which cloud model is suitable here?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
28. An organization has its e-commerce solution on infrastructure provided by a third party service provider and shared with other organizations. It only pays for the compute, storage and networking resources it uses. Which cloud model is used here?
a. Public cloud
b. Hybrid cloud
c. Private cloud
d. On-premises datacenter
29. An organization plans to migrate applications and services to the cloud. The chief architect recommends a hybrid cloud to be deployed. What may be the reason?
a. To consolidate all cloud resources in a single data center.
b. To eliminate the need for company-managed resources
c. To ensure that charges are only incurred when cloud resources are used
d. To augment on-premises resources by providing overflow capacity.
30. An organization deploys resources in Azure. According to the shared responsibility model, which task will you be required to perform?*
a. Configure connectivity between regions
b. Manage access to data center resources
c. Install critical updates on virtual machines
d. Upgrade RAM on virtualization systems*
Answers:
26-c Private cloud - this is the most secure option if you are concerned about the security of your resources, as it is a single tenant model i.e the resources are exclusive and not shared with other users.
27-a Public cloud - Public cloud is the appropriate model here as it eliminates capital expenditure (you don't have to buy hardware) and allows you to pay based on usage.
28-a Public cloud - Public cloud model is used here. The cloud resources are owned and operated by the cloud service provider. The organization pays for what it uses.. The underlying infrastructure is shared with other organizations.
29-d An organization can augment on-premises resources by providing overflow capacity, by using the hybrid cloud. It gives the organization the flexibility to use public cloud resources when they need them, while also keeping sensitive data and apps on-premises in a private cloud. It allows them to manage peaks and valleys in traffic more efficiently.
30-c According to the shared responsibility model, you will install critical updates on VMs. You will not manage access to data center resources because that access is tightly controlled by the cloud provider. You will not configure connectivity between regions, or upgrade RAM on virtualization systems, as this is the responsibility of the cloud provider.