MCQs on Best Practices and Troubleshooting | Azure Disk Storage
In this set of 30 multiple-choice questions (MCQs), we will explore best practices, troubleshooting, and performance tuning in Azure Disk Storage. Understanding these concepts is crucial for optimizing disk performance and ensuring seamless scalability and provisioning.
MCQs on Best Practices and Troubleshooting | Azure Disk Storage
Disk Performance Tuning
- Which Azure disk type is best suited for high-performance, transactional applications?
a) Standard HDD
b) Standard SSD
c) Premium SSD
d) Ultra Disk - What is the main advantage of using Azure Premium SSDs over Standard SSDs?
a) Higher throughput and IOPS
b) Lower cost
c) Better durability
d) Easier to manage - Which factor most influences disk performance in Azure?
a) Disk size
b) Disk type
c) VM size
d) Data redundancy level - What is the purpose of enabling disk caching in Azure?
a) To improve storage reliability
b) To reduce disk I/O latency
c) To prevent data corruption
d) To encrypt disk data - How can you improve the IOPS of a disk in Azure?
a) By increasing the disk size
b) By using a lower-tier disk type
c) By adding more data disks to the VM
d) By enabling disk encryption - What is a recommended practice when tuning disk performance for a VM with high transactional workloads?
a) Use Standard HDD disks
b) Increase the size of the OS disk
c) Use Premium SSD disks and enable read-write caching
d) Use disk mirroring - Which tool can be used to monitor disk performance and diagnose disk issues in Azure?
a) Azure Monitor
b) Azure Storage Explorer
c) Azure CLI
d) Azure Disk Manager - What is the effect of using Azure Ultra Disks for high-performance workloads?
a) Improved cost efficiency
b) Higher IOPS and throughput with low latency
c) Lower capacity limits
d) Better support for disk redundancy - Which of the following Azure disk configurations would you use to improve disk throughput for a database application?
a) Standard SSD with LRS
b) Premium SSD with ZRS
c) Ultra Disk with ZRS
d) Standard HDD with GRS - Which Azure feature can help ensure optimal disk performance during peak loads?
a) VM scaling
b) Disk caching
c) Azure Load Balancer
d) Auto-scaling
Troubleshooting Disk-Related Issues
- Which of the following indicates that a disk might be underperforming in Azure?
a) High disk latency and low IOPS
b) Increased disk throughput
c) Disk capacity nearing the maximum limit
d) No disk activity over time - What should you check first if an Azure VM is not booting properly due to a disk issue?
a) Check the network configuration
b) Verify the disk type
c) Inspect the OS disk for corruption
d) Check the disk size - When a disk is not attaching to an Azure VM, which of the following could be the cause?
a) The VM is not configured for disk attachment
b) There are insufficient permissions to attach the disk
c) The disk type is unsupported for the VM size
d) All of the above - How can you troubleshoot high disk latency in Azure?
a) Increase the disk size
b) Change the disk type to Premium SSD
c) Restart the virtual machine
d) Move the VM to a different region - What does “disk IO throttling” in Azure typically indicate?
a) The disk is full
b) Disk throughput has reached its limits
c) The VM is undersized
d) The disk is experiencing hardware failure - Which Azure tool can help you analyze and resolve issues related to disk throughput?
a) Azure Disk Performance Monitor
b) Azure Monitor
c) Azure Resource Health
d) Azure Virtual Machine Diagnostics - What is a common solution if an Azure disk shows as “unattached” from a VM?
a) Restart the VM
b) Detach and reattach the disk
c) Delete the disk and recreate it
d) Resize the disk - When troubleshooting disk-related failures in Azure, which log is the most useful?
a) Azure Activity Log
b) Azure Storage Logs
c) Azure Disk Diagnostics Logs
d) Azure Event Log - Which of the following could cause a “disk full” error in Azure?
a) Disk encryption is enabled
b) Disk space exceeds its allocated quota
c) Disk caching is turned off
d) Azure Monitor is disabled - When Azure reports that a disk is in “read-only” mode, what is a likely cause?
a) Disk is full
b) The disk is being replicated
c) The disk has been locked by the operating system
d) The disk has failed
Best Practices for Disk Provisioning and Scaling
- What is the recommended practice for provisioning disks in Azure for production workloads?
a) Use large disks for better performance
b) Use multiple smaller disks to avoid bottlenecks
c) Always use Standard HDD disks for cost savings
d) Use a single, large OS disk and additional data disks - How can you ensure high availability for Azure virtual machine disks?
a) Use Availability Sets and Managed Disks
b) Enable disk mirroring
c) Use only premium disks
d) Use locally redundant storage (LRS) - What is the best approach for scaling disk capacity in Azure when storage needs increase?
a) Replace the disk with a larger size
b) Attach additional disks to the VM
c) Resize the OS disk
d) Use Azure Blob Storage instead of disks - How can you minimize costs while provisioning disks for Azure VMs?
a) Use Standard HDDs for all workloads
b) Use only Premium SSDs for production environments
c) Choose the smallest disk size possible
d) Leverage Azure Hybrid Benefit - Which is a recommended disk provisioning strategy for applications with fluctuating workloads?
a) Use auto-scaling and multiple small disks
b) Use ultra disks for all data
c) Provision a single large disk for all data
d) Attach disks based on the workload type - When provisioning Azure disks for a high-availability solution, what is important to consider?
a) The disk type and performance requirements
b) The number of available storage accounts
c) The region in which the VM is located
d) All of the above - What is the ideal disk configuration for a VM running a high-transactional SQL database in Azure?
a) One large Premium SSD disk
b) Multiple smaller Premium SSD disks with RAID 0
c) One Standard SSD disk
d) Multiple Standard HDD disks - When scaling out Azure VMs, how should you handle disk provisioning for each VM?
a) Attach a single shared disk to all VMs
b) Attach separate disks to each VM based on workload
c) Use a single large disk for all VMs
d) Use the default disk for all VMs - What is the benefit of using managed disks in Azure over unmanaged disks?
a) Managed disks offer better scalability and easier management
b) Managed disks are cheaper
c) Unmanaged disks can be more easily migrated
d) Managed disks provide more customization options - How can you ensure that Azure disks scale appropriately with increasing workload?
a) Use auto-scaling for the VM
b) Manually monitor and resize disks
c) Use Azure Disk Storage with increased capacity limits
d) Enable disk caching
Answer Key
| Qno | Answer |
|---|---|
| 1 | c) Premium SSD |
| 2 | a) Higher throughput and IOPS |
| 3 | b) Disk type |
| 4 | b) To reduce disk I/O latency |
| 5 | a) By increasing the disk size |
| 6 | c) Use Premium SSD disks and enable read-write caching |
| 7 | a) Azure Monitor |
| 8 | b) Higher IOPS and throughput with low latency |
| 9 | b) Premium SSD with ZRS |
| 10 | b) Disk caching |
| 11 | a) High disk latency and low IOPS |
| 12 | c) Inspect the OS disk for corruption |
| 13 | d) All of the above |
| 14 | b) Change the disk type to Premium SSD |
| 15 | b) Disk throughput has reached its limits |
| 16 | b) Azure Monitor |
| 17 | b) Detach and reattach the disk |
| 18 | c) Azure Disk Diagnostics Logs |
| 19 | b) Disk space exceeds its allocated quota |
| 20 | c) The disk has been locked by the operating system |
| 21 | b) Use multiple smaller disks to avoid bottlenecks |
| 22 | a) Use Availability Sets and Managed Disks |
| 23 | b) Attach additional disks to the VM |
| 24 | a) Use Standard HDDs for all workloads |
| 25 | a) Use auto-scaling and multiple small disks |
| 26 | d) All of the above |
| 27 | b) Multiple smaller Premium SSD disks with RAID 0 |
| 28 | b) Attach separate disks to each VM based on workload |
| 29 | a) Managed disks offer better scalability and easier management |
| 30 | a) Use auto-scaling for the VM |