AZ-900 Free Practice Test

- (Exam Topic 3)
Select the answer that correctly completes the sentence.

Solution:


Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

- (Exam Topic 3)
You have an accounting application named App1 that uses a legacy database. You plan to move App1 to the cloud. Which service model should you use?

1. A. software as a service (SaaS)
2. B. infrastructure as a service (laaS)
3. C. platform as a service (PaaS)

Correct Answer: B

- (Exam Topic 2)
For each of the following statements, select Yes if the statement is true. Otherwise, select No. NOTE: Each correct selection is worth one point.

Solution:
YES YES YES

Does this meet the goal?

1. A. Yes
2. B. No

Correct Answer: A

- (Exam Topic 3)
What additional resource is required by an Azure virtual machine?

1. A. Azure Firewall
2. B. a virtual network
3. C. a public IP address
4. D. a service endpoint

Correct Answer: B

- (Exam Topic 1)
You have an on-premises network that contains several servers. You plan to migrate all the servers to Azure.
You need to recommend a solution to ensure that some of the servers are available if a single Azure data center goes offline for an extended period.
What should you include in the recommendation?

1. A. fault tolerance
2. B. elasticity
3. C. scalability
4. D. low latency

Correct Answer: A
Fault tolerance is the ability of a system to continue to function in the event of a failure of some of its components.
In this question, you could have servers that are replicated across datacenters.
Availability zones expand the level of control you have to maintain the availability of the applications and data on your VMs. Availability Zones are unique physical locations within an Azure region. Each zone is made up of one or more datacenters equipped with independent power, cooling, and networking. To ensure resiliency, there are a minimum of three separate zones in all enabled regions. The physical separation of Availability Zones within a region protects applications and data from datacenter failures.
With Availability Zones, Azure offers industry best 99.99% VM uptime SLA. By architecting your solutions to use replicated VMs in zones, you can protect your applications and data from the loss of a datacenter. If one zone is compromised, then replicated apps and data are instantly available in another zone.
https://docs.microsoft.com/en-us/azure/virtual-machines/windows/manage-availability