Microsoft Azure Administrator Associate AZ-104 Practice Question
You are an Azure Administrator for a company that deploys a web application using virtual machine scale sets. The application suddenly experiences increased traffic during certain times of the day, and users report intermittent connectivity issues during instance updates. You need to ensure that the scale set instances can handle the fluctuating demand and updates without affecting the application's availability. What should you configure to accomplish this?
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Configure the scale set to use Spot instances.
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Disable instance health monitoring.
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Enable autoscaling based on scheduled times and configure health probes on the load balancer.
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Increase the default instance count of the scale set.
To accommodate fluctuating demand, enabling autoscaling allows the scale set to automatically adjust the number of instances based on schedules or performance metrics, such as CPU usage. Configuring health probes on the load balancer ensures that traffic is directed only to healthy instances, preventing connectivity issues during updates. Increasing the default instance count does not address varying traffic patterns and can be cost-inefficient. Configuring Spot instances is not appropriate for critical applications because these instances can be deallocated unexpectedly. Disabling instance health monitoring would prevent the scale set from detecting and replacing unhealthy instances, which could worsen availability problems.
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What is auto-scaling in Azure, and how does it work?
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Microsoft Azure Administrator Associate AZ-104
Deploy and manage Azure compute resources
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