AZ-300 Azure Virtual Machines & Compute 1 — Questions and Answers
Question 1: Which VM size series is optimized for memory-intensive workloads such as relational databases and in-memory analytics in Azure?
- Av2 series
- Ev3 series (Correct answer)
- Fsv2 series
- Lsv2 series
Correct answer: Ev3 series
The Ev3 series is memory-optimized and ideal for in-memory workloads like large relational databases and caches.
Question 2: What is the maximum number of data disks that can be attached to a Standard_D8s_v3 VM?
- 8
- 16
- 32 (Correct answer)
- 64
Correct answer: 32
The Standard_D8s_v3 VM supports up to 32 data disks.
Question 3: Which Azure feature allows you to group multiple VMs across fault domains and update domains to ensure high availability?
- Scale Set
- Availability Set (Correct answer)
- Proximity Placement Group
- Dedicated Host
Correct answer: Availability Set
Availability Sets distribute VMs across fault domains and update domains to protect against hardware failures and planned maintenance.
Question 4: When deploying VMs in an Azure Virtual Machine Scale Set, which autoscale trigger is based on a metric from Azure Monitor?
- Schedule-based scaling
- Metric-based scaling (Correct answer)
- Predictive scaling
- Manual scaling
Correct answer: Metric-based scaling
Metric-based scaling in VMSS uses Azure Monitor metrics such as CPU percentage to automatically scale in or out.
Question 5: Which disk type provides the highest IOPS and lowest latency for Azure VMs running production workloads?
- Standard HDD
- Standard SSD
- Premium SSD
- Ultra Disk (Correct answer)
Correct answer: Ultra Disk
Ultra Disk offers the highest IOPS (up to 160,000) and sub-millisecond latency for the most demanding workloads.
Question 6: What Azure feature enables you to reserve compute capacity for VMs in a specific region, guaranteeing availability even during capacity constraints?
- Spot Instances
- Reserved Instances
- On-Demand Instances
- Capacity Reservations (Correct answer)
Correct answer: Capacity Reservations
Azure Capacity Reservations allow you to reserve compute capacity in a region, ensuring it is available when needed without committing to a specific VM.
AZ-300 Azure Virtual Machines & Compute 1
Which VM size series is optimized for memory-intensive workloads such as relational databases and in-memory analytics in Azure?