Question 1mediummultiple choice
Full question →mediummultiple choiceObjective-mapped
A company hosts a critical database on a virtual machine (VM) in a public cloud. The database uses a persistent block storage volume. The IT team needs to move the database to a new VM with more vCPUs and RAM in a different availability zone within the same region. The cloud provider does not support live migration across availability zones. Which of the following procedures will achieve the migration with the LEAST amount of downtime?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Distractor review
Export the current VM as a virtual appliance, import it in the target availability zone, and assign the existing static IP to the new VM.
Exporting the VM requires taking the VM offline, resulting in significant downtime during the export and import process. This is not the least downtime approach.
B
Best answer
Detach the block storage volume, create a snapshot, launch a new VM in the target availability zone, create a new volume from the snapshot, and attach it to the new VM.
Using snapshots allows the original VM to stay online during snapshot creation, and only a short outage occurs when detaching the volume and transitioning to the new VM. This is the standard method for minimizing downtime in such migrations.
C
Distractor review
Use a third-party live migration tool that supports cross-zone VM migration without downtime.
If the cloud provider does not support live migration across availability zones, third-party tools generally cannot bypass this limitation at the hypervisor level. This option is not feasible.
D
Distractor review
Set up database replication between the current VM and a new VM in the target zone, then fail over abruptly.
Setting up continuous replication requires significant configuration and may involve extra costs. While it can reduce downtime, it is more complex than the snapshot method and may not be supported by all cloud providers for block storage.
Common exam trap
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Technical deep dive
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
- Use explanations to understand the rule behind the answer.
TExam Day Tips
- Underline the problem statement mentally.
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A user reports intermittent network connectivity on a desktop computer. The technician observes that the Ethernet link light on the NIC turns off for a few seconds and then turns back on. The cable passes a wiremap test, the switch port is verified good with another device, and the NIC driver is updated. The issue occurs more frequently when the computer's case fan runs at high speed. Which of the following is the MOST likely cause?
Question 2
A workstation is unable to connect to the internet. The technician runs the 'ipconfig' command and sees the IPv4 address is 169.254.15.200 with a subnet mask of 255.255.0.0. The workstation can ping other devices on the local subnet but cannot ping the default gateway or any external addresses. Which TWO actions should the technician take to resolve this issue? (Select two.)
Question 3
A workstation is connected to a managed switch. It obtains a valid IP address (192.168.10.50) from the DHCP server, but it cannot ping the default gateway (192.168.10.1). The link light on both the workstation NIC and the switch port are solid green. Other workstations on the same switch CAN ping the default gateway successfully. The technician accesses the switch management interface and finds that the workstation's port is configured as an access port on VLAN 10. The default gateway is located on VLAN 20. An inter-VLAN router is configured but not explicitly allowing VLAN 10 access to VLAN 20. Which of the following is the MOST likely cause of the problem?
Question 4
A company develops a web application that relies on a custom library available only for a specific Linux distribution. They want to deploy the application in the cloud with minimal administrative overhead, but they need full control over the software stack, including the ability to install the custom library and configure the web server. Which cloud service model BEST meets these requirements?
Question 5
A company has a legacy virtual machine running on a deprecated hypervisor (Hyper-V). They want to migrate this VM to a new hypervisor (VMware vSphere) hosted in a private cloud while preserving the VM's configuration, installed applications, and data. The migration must be performed with minimal downtime. Which of the following methods is MOST appropriate?
Question 6
A company hosts a critical database on a virtual machine in a public cloud. The database requires persistent storage that must be retained even if the VM is terminated. The storage must also be accessible from multiple VMs simultaneously for a future high-availability configuration. Which type of cloud storage BEST meets these requirements?
FAQ
Questions learners often ask
What does this 220-1101 question test?
Read the scenario before looking for a memorised answer.
What is the correct answer to this question?
The correct answer is: Detach the block storage volume, create a snapshot, launch a new VM in the target availability zone, create a new volume from the snapshot, and attach it to the new VM. — To migrate a VM with persistent storage across availability zones with minimal downtime, the recommended approach is to detach the existing block storage volume, create a snapshot of that volume, launch a new VM with the desired resources in the target availability zone, create a new volume from the snapshot, and attach it to the new VM. This minimizes downtime because the original VM can remain online while the snapshot is being created, and only a brief outage occurs during the final data sync. Option B is correct. Option A (exporting the VM and reimporting) would capture a point-in-time image that includes the OS and data, but this would require the VM to be offline during export, causing more downtime. Option C (live migrate via third-party tool) is not feasible if the provider does not support cross-zone live migration. Option D (replicating data continuously and failing over) would require complex setup and may not be supported by the provider; it could minimize downtime but involves higher complexity and cost compared to snapshotting, which is a standard feature.
What should I do if I get this 220-1101 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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