AZ-900 Korean 無料問題集「Microsoft Azure Fundamentals (AZ-900 Korean Version)」

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Explanation:
The perimeter layer uses distributed denial of service (DDoS) protection to filter large-scale attacks before they can cause a denial of service for users.
The network layer limits communication between resources through segmentation and access controls.
https://docs.microsoft.com/en-us/learn/modules/secure-network-connectivity-azure/2-what-is- defense-in-depth

解説: (JPNTest メンバーにのみ表示されます)

Explanation:
Azure storage offers different access tiers: hot, cool and archive.
The archive access tier has the lowest storage cost. But it has higher data retrieval costs compared to the hot and cool tiers. Data in the archive tier can take several hours to retrieve.
While a blob is in archive storage, the blob data is offline and can't be read, overwritten, or modified. To read or download a blob in archive, you must first rehydrate it to an online tier.
Example usage scenarios for the archive access tier include:
- Long-term backup, secondary backup, and archival datasets
- Original (raw) data that must be preserved, even after it has been processed into final usable form.
- Compliance and archival data that needs to be stored for a long time and is hardly ever accessed.
Reference:
https://docs.microsoft.com/en-us/azure/storage/blobs/storage-blob-storage-tiers?tabs=azure- portal#archive-access-tier

Explanation:
Cloud is a physical machine (i.e. VM Host) running with many client(i.e. VM guest) to provide services. That mean one client(VM guest) would not bring down the whole VM Host or affecting the performance of other client(VM guest) even they have 100% cpu loading.

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Explanation:
https://azure.microsoft.com/en-us/support/legal/preview-supplemental-terms/

Explanation:
Box 1: Azure Sentinel
Box 2: Azure Security Center
Box 3: Azure Key Vault
- Azure Active Directory (Azure AD)
Azure AD is an identity and access management service, which helps your employees sign in and access resources
- Azure Lighthouse
Azure Lighthouse is used for cross- and multi-tenant management.
Reference:
https://docs.microsoft.com/en-us/azure/sentinel/overview
https://docs.microsoft.com/en-us/azure/security-center/secure-score-security-controls
https://practical365.com/securing-sensitive-information-in-azure-functions-with-the-azure-key- vault/
https://docs.microsoft.com/en-us/azure/active-directory/fundamentals/active-directory-whatis
https://docs.microsoft.com/en-us/azure/lighthouse/overview

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解説: (JPNTest メンバーにのみ表示されます)

解説: (JPNTest メンバーにのみ表示されます)

解説: (JPNTest メンバーにのみ表示されます)

解説: (JPNTest メンバーにのみ表示されます)

解説: (JPNTest メンバーにのみ表示されます)

Explanation:
Box 1: No
Most services go to private preview then public preview before being released to general availability. The private preview is only available to certain Azure customers for evaluation purposes.
Box 2: Yes
Public Preview means that the service is in public beta and can be tried out by anyone with an Azure subscription. Services in public preview are often offered at a discount price. Public previews are excluded from SLAs and in some cases, no support is offered.
Box 3: No
An Azure service in general availability is available to all Azure customers, not just a subset of the customers.
References:
https://azure-overview.com/Home/Faq

Explanation:
Box 1: Yes
A reservation is where you commit to pay for a resource (for example a virtual machine) for one or three years. This gives you a discounted price on the resource for the reservation period.
Box 2: No
There are other factors that influence the cost of a virtual machine such as the virtual hard disks attached to the virtual machine. You could have multiple virtual machines with the same `size' (B2S in this case) but with different virtual hard disk configurations.
Box 3: Yes
When a virtual machine is stopped (deallocated), the virtual machine is unloaded/dismounted from the physical server in Azure. In this state, you are not charged for the virtual machine itself.
However, you are still charged for the storage costs of the virtual hard disks attached to the virtual machine.
If the virtual machine is stopped but not deallocated (this happens if you shut down the virtual machine from the operating system of the virtual machine), the virtual machine is still mounted on the physical server in Azure and you are charged for the virtual machine itself as well as the storage costs. To ensure that a virtual machine is `stopped (deallocated)', you need to stop the virtual machine in the Azure portal.
Reference:
https://azure.microsoft.com/en-us/reservations/
https://docs.microsoft.com/en-us/azure/virtual-machines/linux/b-series-burstable
https://blogs.technet.microsoft.com/uspartner_ts2team/2014/10/10/azure-virtual-machines- stopping-versus-stopping-deallocating/

Explanation:
Box 1: No
Box 2: No
Each resource can exist in only one resource group.
Box 3: Yes
Resources from multiple different regions can be placed in a resource group. The resource group only contains metadata about the resources it contains.
Reference:
https://docs.microsoft.com/en-us/azure/azure-resource-manager/resource-group-overview
https://www.codeisahighway.com/effective-ways-to-delete-resources-in-a-resource-group-on- azure/

Explanation:
The Azure File Sync agent enables data on a Windows Server to be synchronized with an Azure File share.
Reference:
https://www.microsoft.com/en-us/download/details.aspx?id=57159

Explanation:
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