Describe cloud concepts Flashcards
A company wants to migrate its current on-premises servers to Azure. They want to ensure that the servers are running even if a single Azure Data Center goes down. Which of following terms refers to the solution that needs to be in place to fulfill this requirement?
Fault tolerance
Elasticity
Scalability
Low latency
Fault tolerance, this refers to achieving high availability on the cloud.
An application consists of a set of virtual machines hosted in a virtual network. In a month, the application seems to have a load of around 20% for 3 weeks. During the last week, the load on the application reaches 80%. Which of the following benefits of Azure Cloud would ensure the underlying application infrastructure’s cost and efficiency?
High availability
Elasticity
Disaster recovery
Fault tolerance
Elasticity
In this use case, you could define a virtual machine scale set in Azure.
You could define an initial set of virtual machines as part of the scale set that would run for the first 3 weeks.
You can then add a scaling policy to add more virtual machines to support the application during the last week.
You can then add a scaling policy to remove the extra virtual machines at the end of the last week to save on costs.
A company plans to implement the architecture between on-premises and Azure cloud infrastructure using a site-to-site IPSec VPN tunnel. Which of the followig best describes this cloud model?
Private cloud
Public cloud
Government cloud
Hybrid Cloud
Hybrid cloud, this is an example of having infrastrcture hosted in both the Azure public cloud and your on-premises network.
Which of the following is the right concept behind the following description?
“A cloud service that can be accessed quickly by users over the internet (Quick response time is important to users)”
Fault tolerance
Disaster recovery
Dynamic Scalability
Low latency
Low latency, provides users fast and reliable access to their cloud services, apps, and content.
When can an organisation decommision its private cloud infrastrcture hosted in its data center?
When they have a hybrid solution
When all of their servers are in the private cloud
When all of their servers are in the public cloud
When all of their servers are in the public or private cloud
When all of their servers are in the public cloud
When all servers are migrated to the Azure cloud (which is a public cloud) you will have no dependency left on the private cloud or on-premises envrionment. Then it can be decommissioned.
Which of the following is the right Azure cloud service benefit that matches the following description?
“A cloud service that can be restored in the event of a catastrophic loss.”
Fault tolerance
Disaster recovery
Dynamic scalability
Low latency
Disaster recovery
This is the process of restoring application functionality in the wake of a catastrophic loss.
Which of the following are advantages of using the public cloud? Choose 2 answers from the options given below.
Lower capital costs
Higher maintenance
High reliability
Higher capital costs
Lower capital costs
High reliability
Advantages of public clouds:
Lower costs - no need to purchase hardware or software, and you pay only for the service you use.
No maintenance - your service provides the maintenance
Near unlimited scalability - on-demand resources are available to meet your business needs.
High reliability - a vast network of servers ensures against failure.
A company is planning to create several VMs in Azure. Which of the following is the right category to which the Azure VM belongs?
Infrastructure as a services (IaaS)
Platform as a service (PaaS)
Software as a service (SaaS)
Function as a service (FaaS)
Infrastructure as a service (IaaS)
IaaS:
Data centre physical building
Networking, firewalls/security
Servers and storage
PaaS:
Operating systems
Development tools, database management, business analytics
SaaS
Hosted applications
