Create and Configure Azure App Service AZ-104 Practice Questions (Page 4)

Questions 16–20

1. 16application · medium

   A company wants to use an apex domain (contoso.com) for their Azure App Service web app. They have already added the custom domain to the App Service and validated ownership. What DNS record must they create to point the apex domain to the App Service?

   • AAn NS record pointing to Azure DNS
   • BAn AAAA record pointing to the App Service's IPv6 address
   • CAn A record pointing to the App Service's outbound IP address
   • DA CNAME record pointing to the App Service's default domain
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2. 17application · medium

   A company runs a production web app on an Azure App Service plan with three instances. During a scheduled marketing campaign, the app experiences predictable traffic spikes for two hours each evening. The company wants to add two extra instances only during those hours and keep the baseline at three instances. What should you configure?

   • AA metric-based autoscale rule that adds instances when CPU exceeds 80% for 10 minutes
   • BManual scaling to five instances before the campaign and back to three after the campaign ends
   • CA scheduled autoscale rule that increases the instance count to five at the campaign start time and decreases it back to three at the end time
   • DA scale-out rule that triggers when the request queue length exceeds a threshold
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4. 18application · medium

   Your company's web app experiences variable traffic throughout the day. You need to automatically adjust the number of instances based on CPU usage. You want to scale out when CPU exceeds 70% and scale in when CPU drops below 30%. What should you configure?

   • AUse Azure Traffic Manager to distribute traffic based on CPU load.
   • BManually scale the App Service plan based on daily traffic reports.
   • CEnable autoscale on the App Service plan with a CPU percentage rule that scales out at 70% and scales in at 30%.
   • DConfigure a scheduled autoscale rule that changes instance count at specific times.
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5. 19application · medium

   Your company has a web app that requires 4 GB of memory and 2 vCPUs per instance. You expect steady traffic with occasional spikes. You want to minimize cost while ensuring the app can scale out to at least 3 instances during spikes. Which App Service plan tier should you choose?

   • AIsolated plan with 2 vCPUs and 4 GB memory per instance, and enable autoscale to scale out to 3 instances.
   • BBasic plan with 2 vCPUs and 4 GB memory per instance, and manually scale to 3 instances during spikes.
   • CPremium v3 plan with 2 vCPUs and 8 GB memory per instance, and enable autoscale to scale out to 3 instances.
   • DStandard plan with 2 vCPUs and 4 GB memory per instance, and enable autoscale to scale out to 3 instances.
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6. 20expert · hard

   A company runs a web app on an Azure App Service plan (Standard tier) with autoscale enabled. The autoscale rule scales out when CPU exceeds 80% for 10 minutes and scales in when CPU drops below 30% for 10 minutes. The company has a staging deployment slot on the same plan. During a load test on the staging slot, the CPU on the plan increases, triggering a scale-out. This increases costs. What should you do to prevent the staging slot from affecting production scaling?

   • AMove the staging slot to a separate App Service plan
   • BDisable autoscale on the production plan
   • CSet the autoscale rule to use a higher CPU threshold
   • DLimit the staging slot's CPU usage by configuring a CPU quota
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