Virtualization Cloud Flashcards
What is virtualization?
Running multiple virtual machines on a single physical host.
What is the purpose of a hypervisor?
To manage and run virtual machines on a physical host.
What are the two types of hypervisors?
Type 1 (bare-metal) and Type 2 (hosted).
What is an example of a Type 1 hypervisor?
VMware ESXi, Microsoft Hyper-V.
What is an example of a Type 2 hypervisor?
Oracle VirtualBox, VMware Workstation.
What are the advantages of virtualization?
Cost savings, resource efficiency, and easy scalability.
What is hardware virtualization support in CPUs?
Features like Intel VT-x and AMD-V to improve VM performance.
What is virtual machine (VM) snapshot?
A saved state of a VM that can be restored later.
What is cloud computing?
Delivering computing services over the internet.
What are the three primary cloud service models?
IaaS (Infrastructure as a Service), PaaS (Platform as a Service), SaaS (Software as a Service).
What is an example of IaaS?
Amazon EC2, Microsoft Azure Virtual Machines.
What is an example of PaaS?
Google App Engine, Microsoft Azure App Services.
What is an example of SaaS?
Google Workspace, Microsoft 365.
What are the four main cloud deployment models?
Public cloud, private cloud, hybrid cloud, and community cloud.
What is the difference between public and private clouds?
Public clouds are shared among multiple users; private clouds are dedicated to one organization.
What is a hybrid cloud?
A combination of public and private cloud resources.
What is on-demand self-service in cloud computing?
The ability to provision resources as needed without human intervention.
What is resource pooling in cloud computing?
Sharing resources among multiple customers dynamically.
What is cloud elasticity?
The ability to scale resources up or down based on demand.
What is cloud scalability?
The ability to handle growth by adding more resources.
What is a benefit of cloud computing?
Reduced IT infrastructure costs and increased accessibility.
What is cloud metering?
Paying for cloud resources based on usage.
What is a cloud-based virtual desktop infrastructure (VDI)?
Hosting a desktop environment on a remote server accessible via the cloud.
What is containerization?
Running applications in isolated environments called containers.
What is an example of a containerization platform?
Docker, Kubernetes.
What is a virtual private network (VPN)?
A secure connection to a private network over the internet.
What is an example of a cloud storage service?
Google Drive, Dropbox, Microsoft OneDrive.
What is the purpose of cloud monitoring tools?
To track resource usage, performance, and security in a cloud environment.
What is a potential risk of cloud computing?
Data breaches and lack of control over physical infrastructure.
What is the purpose of encryption in cloud computing?
To protect data stored and transmitted in the cloud.
What is multi-tenancy in cloud computing?
Multiple customers sharing the same physical resources in a cloud environment.
What is the role of identity and access management (IAM) in the cloud?
To control user access to cloud resources.
What is a service-level agreement (SLA)?
A contract defining the level of service expected from a cloud provider.
What is the difference between horizontal and vertical scaling in the cloud?
Horizontal scaling adds more machines; vertical scaling adds more resources to an existing machine.
What is a cloud orchestration tool?
Automates cloud management tasks like provisioning and scaling.
What is serverless computing?
Running code without managing server infrastructure.
What is an example of a serverless platform?
AWS Lambda, Google Cloud Functions.
What is edge computing?
Processing data closer to its source rather than in a centralized data center.
