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220-1102 Practice Question: A technician is tasked with deploying a virtual…
A technician is tasked with deploying a virtual machine for a new employee. The VM will run a Linux distribution and needs to be isolated from the corporate network but still have internet access for updates. Which network configuration should the technician choose for the VM?
⚠ Common exam trap
A common misconception in CompTIA A+ scenarios is that internet access requires a direct network connection, leading candidates to choose bridged networking. However, they overlook the isolation requirement that NAT satisfies by hiding the VM behind the host's IP address.
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
✓
NAT (Network Address Translation)
NAT (Network Address Translation) allows the VM to access the internet through the host's IP address while keeping the VM on a private subnet, effectively isolating it from the corporate network. The host acts as a router, translating the VM's private IP to the host's external IP for outbound traffic, which meets the requirement of internet access for updates without direct corporate network connectivity.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Bridged networking
Why it's wrong here
Bridged networking places the VM directly on the physical LAN with its own address, so it is not isolated from the corporate network. It is tempting because bridging does provide internet access, but the stem's isolation requirement rules it out; NAT networking satisfies both conditions.
- ✓
NAT (Network Address Translation)
Why this is correct
NAT lets the VM initiate outbound connections through the host's address for internet updates, while its private address stays unroutable from the corporate network. This satisfies both constraints: isolation from corporate systems and outbound internet access.
- ✗
Host-only networking
Why it's wrong here
Host-only networking gives the VM a private link to the host and other host-only VMs, with no route to the internet, so updates would fail. It is tempting because it delivers the required isolation from the corporate network, but NAT is needed to combine that isolation with outbound internet access.
- ✗
Internal networking
Why it's wrong here
Internal networking gives the VM connectivity only to other VMs on the same host and the host itself, with no route to the internet, so updates would fail. It suits isolated lab or backend tiers needing host-only communication, not this requirement for internet access alongside corporate-network isolation.
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Related to this question
Learn chapter
Physical Security: Locks, Cameras, Access Badges
Key term
Linux
Linux is an open-source operating system that manages computer hardware and software, widely used in servers, desktops, and embedded systems.
Key term
NAT
NAT (Network Address Translation) is a method that allows multiple devices on a private network to share a single public IP address when accessing the internet.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.