AZ-900 Part 1: High Availability in Cloud Environments

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Questions and Answers

Match the following cloud service types with their responsibility distribution:

IaaS = Places the most responsibility on the consumer SaaS = Places most of the responsibility with the cloud provider PaaS = Evenly distributes responsibility between the cloud provider and the consumer

Match the cloud models with their descriptions:

Private Cloud = Used by a single entity, provides greater control, may be hosted on site or offsite Public Cloud = Built, controlled, and maintained by a third-party cloud provider, available to anyone Hybrid Cloud = Uses both public and private clouds, can surge for increased demand

Match the responsibilities with who they fall on in the Shared Responsibility Model:

Physical datacenter, network, and hosts = Cloud provider Information and data stored, devices connected, accounts and identities = Consumer Operating systems, network controls, applications = Depends on the service model

Match the cloud models with their characteristics:

Public Cloud = No capital expenditures to scale up, quick provisioning and deprovisioning, pay only for what is used Private Cloud = Complete control over resources and security, data is not collocated with others, hardware purchase for startup and maintenance Hybrid Cloud = Provides the most flexibility, determines where to run applications, controls security, compliance, or legal requirements Signup and view all the answers

Match the following with the type of cloud model they are most associated with:

Organizations have complete control over resources and security = Private Cloud Applications can be quickly provisioned and deprovisioned = Public Cloud Provides the most flexibility = Hybrid Cloud Hardware must be purchased for startup and maintenance = Private Cloud Signup and view all the answers

Match the following cloud computing concepts with their definitions:

High availability = Ensuring maximum availability, regardless of disruptions or events Scalability = The ability to adjust resources to meet demand Vertical scaling = Increasing or decreasing the capabilities of resources Horizontal scaling = Adding or subtracting the number of resources Signup and view all the answers

Match the following benefits of cloud computing with their descriptions:

Reliability = The ability of a system to recover from failures and continue to function Predictability = Moving forward with confidence, either in performance or cost Performance predictability = Predicting the resources needed to deliver a positive experience for your customers Cost predictability = Predicting or forecasting the cost of the cloud spend Signup and view all the answers

Match the following Azure services with their functions:

Azure Well-Architected Framework = Helps in developing solutions whose cost and performance are predictable Autoscaling = Deploys additional resources to meet the demand, and then scale back when the demand drops Load balancing = Redirects some of the overload to less stressed areas if the traffic is heavily focused on one area Service-level agreements (SLAs) = Guarantees uptime depending on the service Signup and view all the answers

Match the following terms with their definitions in the context of scaling:

Scale up = Add more CPUs or RAM to the virtual machine Scale down = Lowering the CPU or RAM specifications Scale out = Add additional virtual machines or containers Scale in = Reduce the number of virtual machines or containers Signup and view all the answers

Match these cloud computing features with their explanations:

Decentralized design = Supports a reliable and resilient infrastructure Global scale = Resources deployed in regions around the world Consumption-based model = Pay only for what you use Service availability guarantees = Need to account for this when architecting your solution Signup and view all the answers

Match the following cloud computing services with their descriptions:

Virtual machines = Common IT infrastructure service that simulates a physical computer Storage = Cloud service for saving and retrieving data Networking = Cloud service that enables communication between cloud resources Machine Learning = Advanced cloud service that allows systems to automatically learn and improve from experience Signup and view all the answers

Match the following responsibilities in the shared responsibility model with who they belong to:

Physical security, power, cooling, and network connectivity = Cloud provider Maintaining data and information stored in the cloud = Consumer Maintaining all the infrastructure and software needed to keep the datacenter up and running = IT department in a traditional datacenter Ensuring security and maintaining or replacing the servers = Company in a traditional datacenter Signup and view all the answers

Match the following cloud computing characteristics with their descriptions:

Internet-based = The cloud uses this to deliver services Not constrained by physical infrastructure = This is a key advantage of cloud computing over traditional datacenters Rapid expansion of IT footprint = This is possible with cloud computing without building a new datacenter Shared responsibility model = This model divides responsibilities between the cloud provider and the consumer Signup and view all the answers

Match the following cloud computing offerings with their descriptions:

Internet of Things (IoT) = Cloud service that connects physical devices with the internet Artificial Intelligence (AI) = Advanced cloud service that simulates human intelligence Databases = Common IT infrastructure service for storing, retrieving and managing data Machine Learning (ML) = Advanced cloud service that enables systems to learn and improve from data Signup and view all the answers

Match the following entities with their responsibilities in a traditional corporate datacenter:

The company = Responsible for maintaining the physical space, ensuring security, and maintaining or replacing the servers The IT department = Responsible for maintaining all the infrastructure and software needed to keep the datacenter up and running, and for keeping all systems patched and on the correct version The consumer = Not collocated with the datacenter, hence not responsible for physical security, power, cooling, and network connectivity The cloud provider = Not applicable in a traditional datacenter scenario Signup and view all the answers

Match the cloud service models with their descriptions:

Infrastructure as a Service (IaaS) = Provides maximum control over cloud resources, user is responsible for operating system installation, configuration, and maintenance Platform as a Service (PaaS) = Middle ground between IaaS and SaaS Software as a Service (SaaS) = Deployments where patches and maintenance are taken care of automatically Total Cost of Ownership (TCO) = Tool used to get an estimate of potential cloud spend Signup and view all the answers

Match the cloud features with their benefits:

Set templates = Ensure deployed resources meet corporate standards and government regulatory requirements Cloud-based auditing = Helps flag any resource that’s out of compliance and provides mitigation strategies Automatic software patches and updates = Helps with both governance and security Infrastructure as a Service (IaaS) = Provides physical resources but lets user manage the operating systems and installed software Signup and view all the answers

Match the manageability types for cloud computing with their descriptions:

Management of the cloud = Speaks to managing your cloud resources Management in the cloud = Speaks to how you’re able to manage your cloud environment and resources Automatic scaling = Scale resource deployment based on need Automatic alerts = Receive alerts based on configured metrics for real-time performance awareness Signup and view all the answers

Match the cloud computing scenarios with their corresponding service models:

Lift-and-shift migration = Infrastructure as a Service (IaaS) Testing and development = Infrastructure as a Service (IaaS) Maximum control of security = Infrastructure as a Service (IaaS) Automatic patches and maintenance = Platform as a Service (PaaS) or Software as a Service (SaaS) Signup and view all the answers

Match the cloud management methods with their descriptions:

Through a web portal = A method to manage your cloud environment and resources Using a command line interface = A method to manage your cloud environment and resources Using APIs = A method to manage your cloud environment and resources Using PowerShell = A method to manage your cloud environment and resources Signup and view all the answers

Match the following cloud service models with their descriptions:

PaaS = The cloud provider maintains the physical infrastructure, operating systems, middleware, development tools, and business intelligence services. Suited to provide a complete development environment. SaaS = The model that places the most responsibility with the cloud provider and the least responsibility with the user. Examples include Email, financial software, messaging applications. Shared responsibility model = Applies to all the cloud service types and splits the responsibility between the user and the cloud provider. Development framework = A common scenario for PaaS where it provides a framework that developers can build upon to develop or customize cloud-based applications. Signup and view all the answers

Match the following scenarios with the correct cloud service model:

Development framework = PaaS Analytics or business intelligence = PaaS Email and messaging = SaaS Business productivity applications = SaaS Signup and view all the answers

Match the following responsibilities with the correct cloud service model:

Maintaining the physical infrastructure, operating systems, databases, and development tools = PaaS Responsible for the data that you put into the system, the devices that you allow to connect to the system, and the users that have access = SaaS Physical security of the datacenters, power, network connectivity, and application development and patching = SaaS Networking settings and connectivity within your cloud environment, network and application security, and the directory infrastructure = PaaS Signup and view all the answers

Match the following scenarios with their descriptions:

Development framework = PaaS provides a framework that developers can build upon to develop or customize cloud-based applications. Analytics or business intelligence = Tools provided as a service with PaaS allow organizations to analyze and mine their data. Email and messaging = Common examples of a SaaS implementation. Business productivity applications = Another common scenario for SaaS. Signup and view all the answers

Match the following responsibilities with their descriptions:

Physical infrastructure = Responsibility of the cloud provider in a PaaS environment. Data input = Responsibility of the user in a SaaS environment. Physical security of the datacenters = Responsibility of the cloud provider in a SaaS environment. Networking settings and connectivity = Responsibility shared between the user and the cloud provider in a PaaS environment. Signup and view all the answers

Match the following terms with their definitions:

Azure Arc = A set of technologies that helps manage your cloud environment. Azure VMware Solution = Lets you run your VMware workloads in Azure with seamless integration and scalability. CapEx = A one-time, up-front expenditure to purchase or secure tangible resources. OpEx = Spending money on services or products over time. Signup and view all the answers

Match the following cloud computing benefits with their descriptions:

No upfront costs = You don't need to purchase and manage costly infrastructure that users might not use to its fullest potential. Pay for more resources when they're needed = You can add more resources as demand increases. Stop paying for resources that are no longer needed = You can remove resources as demand decreases. Cloud computing falls under OpEx = Cloud computing operates on a consumption-based model. Signup and view all the answers

Match the following terms with their definitions:

High availability = Important for resources to be available when needed. Scalability = The ability to handle demand. Multi-cloud environment = Dealing with two or more public cloud providers and managing resources and security in both environments. Cloud computing = The delivery of computing services over the internet by using a pay-as-you-go pricing model. Signup and view all the answers

Match the following terms with their definitions:

IT infrastructure models = Models that consider two types of expenses, CapEx and OpEx. Traditional datacenter = A model where you try to estimate the future resource needs, and if underestimated, may suffer from decreased performance. Cloud-based model = A model where you don’t have to worry about getting the resource needs just right. You pay for what you use. Cloud pricing models = Pay-as-you-go pricing model, you typically pay only for the cloud services you use. Signup and view all the answers

Match the following terms with their definitions:

Cloud resources = Resources from someone else’s datacenter that you can rent. Maintaining CPUs and storage = The cloud provider takes care of this in the cloud computing model. Cloud enables = To quickly solve your toughest business challenges and bring cutting-edge solutions to your users. Resource needs = In a cloud-based model, if more virtual machines are needed, you add more. If the demand drops, you remove machines as needed. Signup and view all the answers

Which of the following is NOT a computing service provided by cloud computing?

Physical servers Signup and view all the answers

What are the responsibilities of the cloud provider in the shared responsibility model?

Maintaining physical security Signup and view all the answers

What are the responsibilities of the consumer in the shared responsibility model?

Maintaining the data Signup and view all the answers

What are some examples of expanded IT offerings in cloud computing?

All of the above Signup and view all the answers

Why does cloud computing allow for rapid expansion of IT infrastructure?

It doesn't require physical infrastructure Signup and view all the answers

Which type of scaling allows you to add or subtract resources to meet demand in the cloud?

Horizontal scaling Signup and view all the answers

Which cloud benefit refers to the ability of a system to recover from failures and continue to function?

Reliability Signup and view all the answers

Which cloud benefit allows you to predict the resources needed to deliver a positive experience for your customers?

Predictability Signup and view all the answers

Which cloud benefit focuses on predicting or forecasting the cost of cloud spend?

Predictability Signup and view all the answers

Which cloud characteristic refers to the ability to adjust resources to meet demand in the cloud?

Scalability Signup and view all the answers

Which type of expenditure is typically a one-time, up-front expenditure to purchase or secure tangible resources?

Capital expenditure (CapEx) Signup and view all the answers

In a cloud-based model, what happens when you find that you need more virtual machines?

You add more virtual machines Signup and view all the answers

What is the main benefit of high availability in the cloud?

Resources are available when needed Signup and view all the answers

Which type of expenditure is spending money on services or products over time?

Operational expenditure (OpEx) Signup and view all the answers

Which cloud model provides the most flexibility?

Hybrid cloud Signup and view all the answers

What is the main benefit of scalability in the cloud?

The ability to handle demand Signup and view all the answers

Which cloud model is used by a single entity and provides greater control for the company and its IT department?

Private cloud Signup and view all the answers

Which cloud model is built, controlled, and maintained by a third-party cloud provider, allowing anyone to access and use resources?

Public cloud Signup and view all the answers

Which cloud model uses both public and private clouds in an interconnected environment and can be used to allow a private cloud to surge for increased, temporary demand?

Hybrid cloud Signup and view all the answers

Which cloud scenario involves the use of multiple public cloud providers?

Multi-cloud Signup and view all the answers

Which cloud service model is the most complete from a product perspective?

Software as a Service (SaaS) Signup and view all the answers

In a PaaS environment, what responsibilities does the cloud provider have?

Maintaining operating systems and development tools Signup and view all the answers

Which cloud service model requires the least technical knowledge or expertise to fully employ?

Software as a Service (SaaS) Signup and view all the answers

What does the shared responsibility model mean for SaaS?

The cloud provider is responsible for physical security and network connectivity Signup and view all the answers

Which cloud service model is well suited for providing a complete development environment without the headache of maintaining all the development infrastructure?

Platform as a Service (PaaS) Signup and view all the answers

Which cloud service model provides the most control over cloud resources?

Infrastructure as a Service Signup and view all the answers

Which cloud service model is a middle ground between Infrastructure as a Service and Software as a Service?

Platform as a Service Signup and view all the answers

Which cloud service model is responsible for maintaining the physical infrastructure and its access to the internet?

Infrastructure as a Service Signup and view all the answers

Which cloud service model is best suited for lift-and-shift migration and rapid replication of development and test environments?

Infrastructure as a Service Signup and view all the answers

Which cloud service model provides the least control over cloud resources?

Software as a Service Signup and view all the answers

True or false: Cloud computing services include only common IT infrastructure such as virtual machines, storage, databases, and networking.

False Signup and view all the answers