Which of the following network modes allows a guest VM to communicate with the host and other similarly configured VMs but not the network?

which of the following statements is true about a VPN?

1. Using a VPN connection is highly secure.
2. Optimum resource utilization is not possible.
3. The network is configured using cable wires. 
4. All of these

1. Bus
2. Ring
3. Mesh
4. All of these