AZ-900: Microsoft Azure Fundamentals
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Box 1: No
An Azure AD tenant can have multiple subscriptions but an Azure subscription can only be associated with one Azure AD tenant.
Box 2: Yes
Box 3: No
If your subscription expires, you lose access to all the other resources associated with the subscription. However, the Azure AD directory remains in Azure. You can associate and manage the directory using a different Azure subscription.
References:
https://docs.microsoft.com/en-us/azure/active-directory/fundamentals/active-directory-how-subscriptions-associated-directory
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Box 1: Yes
You can use the same account to manage multiple subscriptions. You can create an additional subscription for your account in the Azure portal. You may want an additional subscription to avoid hitting subscription limits, to create separate environments for security, or to isolate data for compliance reasons.
Box 2: No
You cannot merge two subscriptions into a single subscription. However, you can move some Azure resources from one subscription to another. You can also transfer ownership of a subscription and change the billing type for a subscription.
Box 3: Yes
A company can have multiple subscriptions and store resources in the different subscriptions. However, a resource instance can exist in only one subscription.
Reference:
https://docs.microsoft.com/en-us/azure/cost-management-billing/manage/create-subscription
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Box 1: No
Not all Azure regions support availability zones.
Box 2: No
Availability zones can be used with many Azure services, not just VMs.
Box 3: No
Availability Zones are unique physical locations within a single Azure region.
Reference:
https://docs.microsoft.com/en-us/azure/availability-zones/az-region#azure-regions-with-availability-zones
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Box 1: No
Azure resources deployed to a single resource group can be located in different regions. The resource group only contains metadata about the resources it contains.
When creating a resource group, you need to provide a location for that resource group. You may be wondering, "Why does a resource group need a location?
And, if the resources can have different locations than the resource group, why does the resource group location matter at all?" The resource group stores metadata about the resources. When you specify a location for the resource group, you're specifying where that metadata is stored. For compliance reasons, you may need to ensure that your data is stored in a particular region.
Box 2: No
Tags for Resources are not inherited by default from their Resource Group
Box 3: Yes
A resource group can be used to scope access control for administrative actions. By default, permissions set at the resource level are inherited by the resources in the resource group.
Reference:
https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-overview
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Box 1: Yes
There are different replication options available with a storage account. The minimum replication option is Locally Redundant Storage (LRS). With LRS, data is replicated synchronously three times within the primary region.
Box 2: No
Data is not backed up automatically to another Azure Data Center although it can be depending on the replication option configured for the account. Locally Redundant Storage (LRS) is the default which maintains three copies of the data in the data center.
Geo-redundant storage (GRS) has cross-regional replication to protect against regional outages. Data is replicated synchronously three times in the primary region, then replicated asynchronously to the secondary region.
Box 3: No
The limits are much higher than that. The current storage limit is 2 PB for US and Europe, and 500 TB for all other regions (including the UK) with no limit on the number of files.
Reference:
https://docs.microsoft.com/en-us/azure/storage/common/storage-account-overview
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Box 1: No
Not all Azure regions support availability zones.
Box 2: No
Regions that support availability zones support Linux virtual machines.
Box 3: No
Availability zones are used to replicate data and applications in the same region.
Availability Zones is a high-availability offering that protects your applications and data from datacenter failures. 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's 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. Zone-redundant services replicate your applications and data across Availability Zones to protect from single-points-of-failure. With Availability Zones, Azure offers industry best 99.99% VM uptime SLA.
References:
https://docs.microsoft.com/en-gb/azure/availability-zones/az-overview
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Answer is No - No - No
Box 1: No
North America has several Azure regions, including West US, Central US, South Central US, East Us, and Canada East.
Box 2: No
Azure Region: A region is a geographical area on the planet that contains at least ONE but potentially multiple datacenters
Box 3: No
Outbound data transfer is charged at the normal rate and inbound data transfer is free.
References:
https://azure.microsoft.com/en-us/global-infrastructure/regions/
https://azure.microsoft.com/en-us/pricing/details/bandwidth/
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Answer is No - No - Yes
Reference: https://docs.microsoft.com/en-us/azure/virtual-desktop/overview
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Answer is Yes - No - Yes
Box 1: Yes
Azure Monitor maximizes the availability and performance of your applications and services by delivering a comprehensive solution for collecting, analyzing, and acting on telemetry from your cloud and on-premises environments.
Box 2: No
Box 3: Yes
Azure Monitor uses Target Resource, which is the scope and signals available for alerting. A target can be any Azure resource. Example targets: a virtual machine, a storage account, a virtual machine scale set, a Log Analytics workspace, or an Application Insights resource.
References:
https://docs.microsoft.com/en-us/azure/azure-monitor/overview
https://docs.microsoft.com/en-us/azure/azure-monitor/platform/alerts-overview
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
Answer is Yes Yes No
It states "It is not true that a company must always migrate from a private cloud model or must first have a private cloud to implement a hybrid cloud. You could start with a public cloud and then combine that with an on-premise infrastructure to implement a hybrid cloud."
This is true. But how can you have a hybrid with having BOTH on-prem and online infrastructure in place? Think about it - If you start with on-prem then you need to first have online infrastructure before you can be considered hybrid. And if you start online then you need to have on-prem infrastructure before you can be considered hybrid.
So you need have both first. Until then, you are either private or public but not hybrid.
Reference:
https://azure.microsoft.com/en-us/overview/what-is-hybrid-cloud-computing/