Crucial Exams

CompTIA Linux+ XK0-006 (V8) Practice Question

You are configuring a KVM host with libvirt. The host connects to the company LAN through a wireless interface that cannot be bridged. You create the following virtual network and attach several VMs to it:

<network>
  <name>corp-guests</name>
  <forward mode='route'/>
  <ip address='10.200.0.1' netmask='255.255.255.0'/>
</network>

Each VM receives an address such as 10.200.0.10 and can ping the host (10.200.0.1), but attempts to ping other LAN devices fail. Likewise, computers on the LAN cannot initiate connections (for example, ping or SSH) to the VMs.

Which action will allow ordinary hosts on the LAN to reach the VMs without introducing Network Address Translation (NAT) or port-forwarding?

  • Add a static route for 10.200.0.0/24 on the upstream router that points to the host's LAN IP address.

  • Change the virtual network's forward mode to "nat" so the host masquerades guest traffic.

  • Keep the routed network but change the forward mode to "open" and disable the host firewall.

  • Replace the routed network with a bridge attached to the wireless interface.

CompTIA Linux+ XK0-006 (V8)
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