AZ-900 Practice Questions Flashcards
_____ provides you with physical resources but lets you manage the operating systems and installed software, including patches and maintenance.
Infrastructure as a service
If you want patches and maintenance taken care of automatically, ______ may be the best cloud strategies for you.
Platform or Software as a service
Which type of scaling involves adding or removing resources (such as virtual machines or containers) to meet demand?
Horizontal scaling is adding or subtracting the number of resources.
What is characterized as the ability of a system to recover from failures and continue to function?
Reliability is the ability of a system to recover from failures and continue to function, and it is one of the pillars of the Microsoft Azure Well-Architected Framework.
In ____ model, the cloud provider is responsible for maintaining the hardware, network connectivity (to the internet), and physical security
IaaS
Responsibility always maintained by the customer
Information/Data, Devices (Mobile/PC), Accounts and Identities
Responsibility varies by type
Identity and directory infrastructure, applications, network controls, operating system
Responsibility transfers to cloud provider
Physical hosts, Physical Network, physical data center
In ___environment, the cloud provider maintains the physical infrastructure, physical security, and connection to the internet. They also maintain the operating systems, middleware, development tools, and business intelligence services that make up a cloud solution. In ___ scenario, you don’t have to worry about the licensing or patching for operating systems and databases.
PaaS
Which cloud service type is most suited to a lift and shift migration from an on-premises datacenter to a cloud deployment?
IaaS - With an IaaS service type, you can approximate your on-premises environment, making a lift-and-shift transition to the cloud relatively straightforward.
What type of cloud service type would a Finance and Expense tracking solution typically be in?
SaaS - SaaS provides access to software solutions, such as finance and expense tracking, email, or ticketing systems.
________ handles most of the infrastructure decisions you deal with in hosting web-accessible apps:
Deployment and management are integrated into the platform.
Endpoints can be secured.
Sites can be scaled quickly to handle high traffic loads.
The built-in load balancing and traffic manager provide high availability.
Azure App Service
What makes up the Platform layer?
Runtime (IIS/Docker), Middleware (software to use OS)/apps, and OS (WIndows, Linux)
What makes up the Infrastructure layer?
Virtualization (VMs), Servers (memory, motherboard, CPU), Networking (Routers/Switches, Internet), Storage (SSD/HDD)
Name use cases for IaaS
Migration of workloads, Testing & development, storage, backups & recovery
