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CompTIA A+ Core 1: Which Network Setting Provides Isolated Access for a Developer’s Virtual Machine?

Find out why Host-only networking is the best choice for isolating a virtual machine’s network access during development, as required for the CompTIA A+ Core 1 220-1101 exam. Learn how Host-only mode ensures secure, private VM environments for testing.

Table of Contents

Question

A technician is setting up a virtual machine for a developer. The VM requires isolated network access for testing. Which network setting should be configured?

A. Bridged
B. NAT
C. Host-only
D. Internal
E. Custom

Answer

C. Host-only

Explanation

Host-only networking isolates the VM’s network from external connections, allowing communication only with the host system, which is ideal for secure testing environments.

Host-only networking creates an isolated virtual network where the VM can communicate only with the host system and other VMs on the same host-only network, but not with external networks or the internet. This configuration is ideal for development and testing scenarios that require network isolation, preventing any risk of interference with production or external systems.

Host-only mode is commonly used for penetration testing labs, malware analysis, or any environment where security and containment are critical. It ensures the VM is shielded from both inbound and outbound connections beyond the host, aligning with best practices for secure development and testing environments as outlined in CompTIA A+ Core 1 220-1101 objectives. Other settings like Bridged or NAT allow external network access, which does not meet the requirement for isolation.

CompTIA A+ Core 1 220-1101 certification exam practice question and answer (Q&A) dump with detail explanation and reference available free, helpful to pass the CompTIA A+ Core 1 220-1101 exam and earn CompTIA A+ Core 1 220-1101 certification.