220-1201 Practice Question: A technician is setting up a virtualized test…

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

• ✗

  Internal virtual switch

  Why it's wrong here

  An internal virtual switch facilitates communication exclusively between virtual machines (VMs) and the host operating system. While VMs can communicate with each other and the host, this configuration intentionally prevents any direct access to the physical network or external internet. This isolation makes it unsuitable for a test environment that requires VMs to interact with external network resources or the internet.

• ✗

  Private virtual switch

  Why it's wrong here

  A private virtual switch creates a completely isolated network segment where virtual machines (VMs) can communicate only with each other. This configuration strictly prevents any communication between the VMs and the host operating system, as well as any access to the physical network or the internet. Such extreme isolation is inappropriate for a test environment that likely needs to simulate real-world network interactions, including external connectivity.

• ✓

  Bridged (external) virtual switch

  Why this is correct

  A bridged (external) virtual switch directly connects virtual machines (VMs) to the physical network adapter of the host computer. Each VM configured with a bridged connection receives its own unique MAC address and obtains an IP address from the physical network's DHCP server, appearing as a distinct, independent device on the physical network. This setup provides full, bidirectional network access to external resources and the internet, making it ideal for a test environment requiring realistic network interaction.

• ✗

  NAT virtual switch

  Why it's wrong here

  A NAT (Network Address Translation) virtual switch allows virtual machines (VMs) to access external networks by sharing the host's IP address. VMs are placed on a private internal network, and the host performs NAT to translate their private IP addresses for outbound traffic. While VMs can initiate connections to the internet, direct inbound connections from the external network to the VMs are generally blocked or require complex port forwarding, which limits the flexibility needed for a comprehensive test environment.