MCQs on Disk Attachments and Usage | Azure Disk Storage
In this set of 30 multiple-choice questions (MCQs), we will explore key concepts of Azure Disk Storage, including disk attachments, data and OS disks, disk sharing, and configurations for high availability and VM scale sets. Understanding these concepts is essential for optimizing your cloud environment.
MCQs on Disk Attachments and Usage | Azure Disk Storage
Attaching and Detaching Disks to/from VMs
- Which command is used to attach a disk to a virtual machine in Azure?
a) az disk attach
b) az vm disk attach
c) az vm add disk
d) az vm storage attach - What is the first step in attaching a disk to an Azure virtual machine?
a) Create a new virtual machine
b) Create a new disk
c) Start the virtual machine
d) Open the disk in the portal - Which Azure service is required for managing disk attachments and detachments?
a) Azure Resource Manager
b) Azure Disk Storage
c) Azure Virtual Machines
d) Azure Storage Accounts - Can a managed disk be detached from a VM while the VM is running in Azure?
a) Yes, it can be detached while running
b) No, the VM must be stopped before detaching the disk
c) Yes, but only if the disk is not the OS disk
d) No, disks cannot be detached from running VMs - What is the maximum number of data disks you can attach to a standard Azure VM (DSv2 series)?
a) 4
b) 8
c) 16
d) 64
Data Disks vs OS Disks
- Which of the following disks is essential for booting an Azure virtual machine?
a) Data disk
b) OS disk
c) Temporary disk
d) Backup disk - What is the primary difference between data disks and OS disks in Azure?
a) OS disks are read-only
b) OS disks store the operating system and boot files
c) Data disks cannot be attached to VMs
d) Data disks are used for temporary storage - What is the default size of an OS disk in Azure?
a) 8 GB
b) 10 GB
c) 32 GB
d) 128 GB - Can a data disk be used as the OS disk in Azure?
a) Yes, if the disk is formatted as a bootable disk
b) No, only OS disks can be used for booting
c) Yes, but it requires specific configuration
d) No, data disks cannot be used for booting - Which disk type should you use to store temporary data that is not persistent in Azure?
a) OS disk
b) Data disk
c) Temporary disk
d) Backup disk
Disk Sharing and Configurations (VM Scale Sets, High Availability)
- Which Azure service allows you to scale multiple virtual machines together with shared disk configurations?
a) Azure Virtual Machine Scale Sets
b) Azure Load Balancer
c) Azure Availability Sets
d) Azure Virtual Networks - How does disk sharing work in Azure VM scale sets?
a) Each VM in the scale set shares the same disk
b) Each VM has its own private disk, but disks can be swapped
c) VM disks are independent but backed by a shared storage account
d) Disks are shared in a replicated configuration - Which Azure feature provides high availability for virtual machines by distributing them across fault domains?
a) Availability Sets
b) Virtual Machine Scale Sets
c) Resource Groups
d) Virtual Network Peering - What is the purpose of a fault domain in Azure Availability Sets?
a) To isolate virtual machines for better security
b) To ensure virtual machines are on the same physical hardware
c) To distribute virtual machines across different physical servers for redundancy
d) To enable disk sharing between virtual machines - What configuration is required to achieve high availability for disks in a multi-VM configuration?
a) Use of managed disks with availability sets
b) Use of unmanaged disks with redundancy
c) Use of standard SSD disks
d) Use of locally redundant storage - Which Azure configuration ensures that VM disks are replicated for high availability across regions?
a) Zone-redundant storage (ZRS)
b) Locally redundant storage (LRS)
c) Geo-redundant storage (GRS)
d) Read-access geo-redundant storage (RA-GRS) - Can you attach a disk from one Azure virtual machine to another VM in a different region?
a) Yes, using Azure Blob storage
b) No, disks can only be attached within the same region
c) Yes, using geo-replication
d) No, only OS disks can be shared across regions - How are disks distributed across virtual machines in Azure Availability Sets?
a) Disks are replicated for high availability
b) Disks are distributed across fault and update domains
c) Disks are assigned manually to each VM
d) Disks are assigned randomly - What is the maximum number of VMs allowed in a single VM scale set?
a) 100
b) 200
c) 500
d) 1000 - Which of the following Azure disk configurations is optimal for high-transactional workloads?
a) Premium SSD
b) Standard SSD
c) Standard HDD
d) Basic HDD
Advanced Azure Disk Storage Management
- How do you optimize disk performance for high I/O operations in Azure?
a) Use standard HDDs
b) Use premium SSDs and configure caching
c) Use managed disks
d) Use larger data disks - Which Azure disk type provides low latency and high throughput for critical workloads?
a) Standard HDD
b) Standard SSD
c) Premium SSD
d) Ultra Disk - What is the role of the temporary disk in Azure virtual machines?
a) To store data permanently
b) To store operating system files
c) To provide temporary storage that is wiped on reboot
d) To back up data - What disk redundancy feature ensures your data is safe from hardware failures in Azure?
a) Geo-redundant storage (GRS)
b) Locally redundant storage (LRS)
c) Zone-redundant storage (ZRS)
d) All of the above - Which type of disk is used for storing data that requires high durability and availability in Azure?
a) Premium SSD
b) Standard HDD
c) Managed disk
d) Unmanaged disk - What is the primary advantage of using Azure Managed Disks over Unmanaged Disks?
a) Managed disks provide automatic scaling
b) Managed disks are easier to backup
c) Managed disks offer better availability and easier management
d) Unmanaged disks provide more flexibility - What is a common use case for Azure Premium SSD disks?
a) Low-cost long-term storage
b) High-performance databases and applications
c) File storage for general applications
d) Backup storage for virtual machines - Which command is used to detach a disk from a virtual machine in Azure?
a) az disk detach
b) az vm disk detach
c) az vm remove disk
d) az disk remove - Which of the following features allows Azure disks to be easily managed across multiple VMs?
a) Azure Disk Storage
b) Azure Blob Storage
c) Azure Resource Manager
d) Azure Virtual Network - What is the benefit of using Azure Blob storage for disk backups?
a) Cost-effective storage for large amounts of data
b) Automatically scales with your application
c) Ensures high availability
d) All of the above
Answer Key
| Qno | Answer |
|---|---|
| 1 | b) az vm disk attach |
| 2 | b) Create a new disk |
| 3 | c) Azure Virtual Machines |
| 4 | b) No, the VM must be stopped before detaching the disk |
| 5 | b) 8 |
| 6 | b) OS disk |
| 7 | b) OS disks store the operating system and boot files |
| 8 | c) 32 GB |
| 9 | a) Yes, if the disk is formatted as a bootable disk |
| 10 | c) Temporary disk |
| 11 | a) Azure Virtual Machine Scale Sets |
| 12 | a) Each VM in the scale set shares the same disk |
| 13 | a) Availability Sets |
| 14 | c) To distribute virtual machines across different physical servers for redundancy |
| 15 | a) Use of managed disks with availability sets |
| 16 | a) Zone-redundant storage (ZRS) |
| 17 | b) No, disks can only be attached within the same region |
| 18 | b) Disks are distributed across fault and update domains |
| 19 | c) 500 |
| 20 | a) Premium SSD |
| 21 | b) Use premium SSDs and configure caching |
| 22 | c) Premium SSD |
| 23 | c) To provide temporary storage that is wiped on reboot |
| 24 | d) All of the above |
| 25 | a) Premium SSD |
| 26 | c) Managed disks offer better availability and easier management |
| 27 | b) High-performance databases and applications |
| 28 | b) az vm disk detach |
| 29 | a) Azure Disk Storage |
| 30 | d) All of the above |