Module 4 Flashcards
The physical resources or infrastructure are housed in :
Regions, zones, data centers
Regions
A geographic area or location where a cloud provider’s infrastructure is clustered. It may have names such as NA (North America) South or US (United States) East.
Zones
Each cloud region can have multiple zones (also known as availability zones or AZ) which are typically distinct data centers with their own power, cooling, and networking resources.
Data center
A huge warehouse or room containing cloud infrastructure equipment. These data centers contain pods and racks or standardized containers of computing resources such as servers plus storage and networking equipment.
Computing resources
Virtual servers, bare metal servers, serverless
Virtual servers
Many of the servers in a cloud data center run hypervisors to create servers or VMs that are software-based computers.
Bare Metal Servers
Bare metal servers are other servers in the rack that are not virtualized.
Serverless
Serverless computing resources are also available for users to run their workloads. They are considered an abstraction layer on top of VMs.
Block and file storage modes struggle with
scale, performance, and distributed characteristics of the cloud
Most common mode of storage in the cloud
Object storage because is highly distributed and resilient
Virtualization
The process of creating a software based or a virtual version of a computing resource or facility, whether it be compute, storage, networks, servers, or applications.
Hypervisor
- Software that runs above the physical server or host.
- They essentially pull the resources from the physical server and allocate them to a virtual environment.
Types of VMs
Shared or public Cloud VMs, Transient or spot VMs, Dedicated hosts
Shared or public Cloud VMs
provider-managed, multitenant deployments that can be provisioned on-demand with predefined sizes.
Transient or spot VMs
take advantage of unused capacity in a cloud data center.
-
Dedicated Hosts
offer single tenant isolation
Bare metal Server
It is a single tenant, dedicated physical server.
-The cloud provider takes the physical server and plugs it into a rack in a data center for customers. They manage the server up to the operating system. The provider is responsible for fixing hardware or rack connections.
What are containers?
Containers are an executable unit of software in which application code is packaged, along with its libraries and dependencies, in common ways so that it can be run anywhere, whether it be on desktop, traditional IT, or the cloud.
Reserved VMs
allow you to reserve capacity and guarantee resources for future Deployments.
Which one of the following layers is considered the foundation of the cloud?
Infrastructure layer
Which of the following isknown as distinct data centers with their own power, cooling, and networking resources?
Zones
Which of the following are characteristics ofa region? Identify all that apply.
Has a name such as NA South or US East.
Is isolated from other regions, so if one was impacted by a natural disaster, the cloud operations in others would continue to function.
A geographic area or location where a cloud provider’s infrastructure is clustered.
Which one of the following is a characteristic of both a bare metal server and a virtual server?
Provisioned with default storage in local drives.
What is the function of a hypervisor?
Pulls resources from the physical server and allocate them to a virtual environment.
What is another name given to a Type 2 hypervisor?
Hosted
Virtual servers and virtual instances are two terms used synonymously in the IBM Cloud with which of the following?
Virtual Machines
What type of server satisfies workload examples such as ERP, CRM, AI, deep learning and virtualization?
Bare metal
VMware, ESXi, Microsoft Hyper-v, and open-source KVM are some examples of which Type of hypervisor?
1
Which of the following is added to the network to enable users’ access to the application in the internet tier?
Public gateaway
What is the main difference between deploying a network in an on-premises data center and deploying a cloud network?
Physical devices
Portability, scalability, streamlined development and deployment of cloud-native applications and architectures are some of the advantages of which one of the following components?
Containers
