QUESTION: 1

Same Case Study as topic 8
HOTSPOT (Drag and Drop is not supported)
How should the migrated databases DB1 and DB2 be implemented in Azure?
Hot Area:

See Explanation section for answer.

Answer(s): A

Explanation:

Box 1: SQL Managed Instance
Scenario: Once migrated to Azure, DB1 and DB2 must meet the following requirements:
- Maintain availability if two availability zones in the local Azure region fail.
- Fail over automatically.
- Minimize I/O latency.
The auto-failover groups feature allows you to manage the replication and failover of a group of databases on a server or all databases in a managed instance to another region. It is a declarative abstraction on top of the existing active geo-replication feature, designed to simplify deployment and management of geo- replicated databases at scale. You can initiate a geo-failover manually or you can delegate it to the Azure service based on a user-defined policy. The latter option allows you to automatically recover multiple related databases in a secondary region after a catastrophic failure or other unplanned event that results in full or partial loss of the SQL Database or SQL Managed Instance availability in the primary region.
Box 2: Business critical
SQL Managed Instance is available in two service tiers:
General purpose: Designed for applications with typical performance and I/O latency requirements.
Business critical: Designed for applications with low I/O latency requirements and minimal impact of underlying maintenance operations on the workload.

Reference:

https://docs.microsoft.com/en-us/azure/azure-sql/database/auto-failover-group-overview https://docs.microsoft.com/en-us/azure/azure-sql/managed-instance/sql-managed-instance-paas-overview

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QUESTION: 1

You have an Azure subscription that contains a Basic Azure virtual WAN named VirtualWAN1 and the virtual hubs shown in the following table.
You have an ExpressRoute circuit in the US East Azure region.
You need to create an ExpressRoute association to VirtualWAN1.
What should you do first?

Upgrade VirtualWAN1 to Standard.
Create a gateway on Hub1.
Enable the ExpressRoute premium add-on.
Create a hub virtual network in US East.

Answer(s): A

Explanation:

A basic Azure virtual WAN does not support express route. You have to upgrade to standard.

Reference:

https://docs.microsoft.com/en-us/azure/virtual-wan/virtual-wan-about

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QUESTION: 1

You have SQL Server on an Azure virtual machine. The databases are written to nightly as part of a batch process.
You need to recommend a disaster recovery solution for the data. The solution must meet the following requirements:
-Provide the ability to recover in the event of a regional outage.
-Support a recovery time objective (RTO) of 15 minutes.
-Support a recovery point objective (RPO) of 24 hours.
-Support automated recovery.
-Minimize costs.
What should you include in the recommendation?

Azure virtual machine availability sets
Azure Disk Backup
an Always On availability group
Azure Site Recovery

Answer(s): D

Explanation:

Replication with Azure Site Recover:
- RTO is typically less than 15 minutes.
- RPO: One hour for application consistency and five minutes for crash consistency.
Incorrect Answers:
B: Too slow.
C: Always On availability group RPO: Because replication to the secondary replica is asynchronous, there's some data loss.

Reference:

https://docs.microsoft.com/en-us/azure/site-recovery/site-recovery-sql

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QUESTION: 1

HOTSPOT (Drag and Drop is not supported)
You design a solution for the web tier of WebApp1 as shown in the exhibit.
For each of the following statements, select Yes if the statement is true. Otherwise, select No.
NOTE: Each correct selection is worth one point.
Hot Area:

See Explanation section for answer.

Answer(s): A

Explanation:

Box 1: Yes
Any new deployments to Azure must be redundant in case an Azure region fails.
Traffic Manager is resilient to failure, including the failure of an entire Azure region.
Box 2: No
Traffic Manager provides load balancing, but not auto-scaling.
Box 3: No
Automatic failover using Azure Traffic Manager: when you have complex architectures and multiple sets of resources capable of performing the same function, you can configure Azure Traffic Manager (based on DNS) to check the health of your resources and route the traffic from the non-healthy resource to the healthy resource.

Reference:

https://docs.microsoft.com/en-us/azure/traffic-manager/traffic-manager-overview https://docs.microsoft.com/en-us/azure/networking/disaster-recovery-dns-traffic-manager

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