- A
Copy the ISO file directly to the virtual hard disk.
Why wrong: Copying the ISO to the virtual disk would not make it bootable; the VM needs to boot from the ISO.
- B
Mount the ISO file as a virtual CD/DVD drive and boot from it.
Mounting the ISO as a virtual optical drive allows the VM to boot from it and begin the OS installation process.
- C
Use a USB flash drive with the ISO and plug it into the host.
Why wrong: USB passthrough might work but is more complex and not the standard method; mounting the ISO is simpler and more reliable.
- D
Change the hypervisor's default settings to support the OS.
Why wrong: Hypervisor settings do not determine OS compatibility; the installation media must be provided via ISO.
Question 34 of 750
Installing an Operating System on a Virtual Machine Using an ISO File
This 220-1202 practice question tests your understanding of virtualization and cloud technologies. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A technician needs to deploy a virtual machine for a client who requires a specific operating system that is not supported by the hypervisor's default settings. The technician has the ISO file for the OS. What should the technician do to install the OS on the VM?
Quick Answer
The correct answer is to mount the ISO file as a virtual CD/DVD drive and boot the virtual machine from it. This works because an ISO file is an exact digital copy of an optical disc, and hypervisors like VMware or VirtualBox can treat it as a physical drive, allowing the VM’s BIOS to read it during startup just like a real installation disc. On the CompTIA A+ Core 2 220-1202 exam, this question tests your understanding of virtual media attachment versus physical media, and a common trap is thinking you can simply copy the ISO to the virtual hard disk or use a USB passthrough—neither triggers the boot sequence correctly. Remember, the hypervisor’s default settings only affect supported guest OS templates, not the ISO’s compatibility, so mounting is always the direct method. A helpful memory tip: “ISO = In Silico Optical,” meaning you treat it exactly like a real disc in the drive tray.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Mount the ISO file as a virtual CD/DVD drive and boot from it.
Mounting the ISO file as a virtual CD/DVD drive is the correct method because hypervisors emulate optical drives for VM boot devices. By attaching the ISO to the virtual drive and setting the boot order to CD/DVD first, the VM can boot from the ISO and begin the OS installation process. This approach works regardless of whether the OS is in the hypervisor's default supported list, as the installation media is presented directly to the guest.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Copy the ISO file directly to the virtual hard disk.
Why it's wrong here
Copying the ISO to the virtual disk would not make it bootable; the VM needs to boot from the ISO.
- ✓
Mount the ISO file as a virtual CD/DVD drive and boot from it.
Why this is correct
Mounting the ISO as a virtual optical drive allows the VM to boot from it and begin the OS installation process.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Use a USB flash drive with the ISO and plug it into the host.
Why it's wrong here
USB passthrough might work but is more complex and not the standard method; mounting the ISO is simpler and more reliable.
- ✗
Change the hypervisor's default settings to support the OS.
Why it's wrong here
Hypervisor settings do not determine OS compatibility; the installation media must be provided via ISO.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The exam may test the misconception that an unsupported OS cannot be installed at all, leading candidates to choose 'change hypervisor settings,' when in fact any OS can be installed via standard boot media like an ISO mounted as a virtual CD/DVD.
Detailed technical explanation
How to think about this question
Under the hood, hypervisors like VMware ESXi, Hyper-V, or KVM use a virtual IDE or SATA controller to present the ISO as a virtual optical disc. The VM's BIOS/UEFI firmware reads the ISO's boot sector (El Torito specification for CD-ROMs) to initiate the boot process. In real-world scenarios, this method is essential for installing legacy or niche OSes (e.g., FreeBSD, custom Linux distros) that lack paravirtualized drivers, as the emulated optical drive provides standard ATA/ATAPI compatibility.
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.
TExam Day Tips
- 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.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 220-1202 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
- →
Virtualization and Cloud Technologies — study guide chapter
Learn the concepts, then practise the questions
- →
Virtualization and Cloud Technologies practice questions
Targeted practice on this topic area only
- →
All 220-1202 questions
750 questions across all exam domains
- →
CompTIA A+ Core 2 220-1202 study guide
Full concept coverage aligned to exam objectives
- →
220-1202 practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Related 220-1202 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Windows OS Features and Tools practice questions
Practise 220-1202 questions linked to Windows OS Features and Tools.
Windows Settings and Control Panel practice questions
Practise 220-1202 questions linked to Windows Settings and Control Panel.
Windows Command-Line Tools practice questions
Practise 220-1202 questions linked to Windows Command-Line Tools.
Windows Administrative Tools practice questions
Practise 220-1202 questions linked to Windows Administrative Tools.
macOS Features and Tools practice questions
Practise 220-1202 questions linked to macOS Features and Tools.
Linux Commands and File Permissions practice questions
Practise 220-1202 questions linked to Linux Commands and File Permissions.
Mobile OS Features and Tools practice questions
Practise 220-1202 questions linked to Mobile OS Features and Tools.
Virtualization and Cloud Technologies practice questions
Practise 220-1202 questions linked to Virtualization and Cloud Technologies.
Physical Security Controls practice questions
Practise 220-1202 questions linked to Physical Security Controls.
Logical Security Concepts practice questions
Practise 220-1202 questions linked to Logical Security Concepts.
Wireless Security Protocols practice questions
Practise 220-1202 questions linked to Wireless Security Protocols.
Malware Types and Removal practice questions
Practise 220-1202 questions linked to Malware Types and Removal.
Practice this exam
Start a free 220-1202 practice session
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Questions learners often ask
What does this 220-1202 question test?
Virtualization and Cloud Technologies — This question tests Virtualization and Cloud Technologies — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Mount the ISO file as a virtual CD/DVD drive and boot from it. — Mounting the ISO file as a virtual CD/DVD drive is the correct method because hypervisors emulate optical drives for VM boot devices. By attaching the ISO to the virtual drive and setting the boot order to CD/DVD first, the VM can boot from the ISO and begin the OS installation process. This approach works regardless of whether the OS is in the hypervisor's default supported list, as the installation media is presented directly to the guest.
What should I do if I get this 220-1202 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
More 220-1202 practice questions
- During a Windows 10 deployment, you need to ensure that a specific Group Policy setting is applied to a computer before…
- After installing a new printer driver, a user's Windows 11 computer crashes with a blue screen error every time they try…
- A user reports that their Windows 10 computer is infected with a virus that keeps reinstalling itself after removal. Wha…
- A customer reports that their Windows 10 laptop is displaying pop-up ads even when no browser is open. They suspect a ma…
- A technician is configuring a new Windows 10 workstation for a user who handles sensitive financial data. The company po…
- A technician is responding to a security incident where an employee's credentials were used to access a server without a…
Last reviewed: Jul 4, 2026
This 220-1202 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 220-1202 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.