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Difficulty: EasyVirtualization Security Considerations and Network Configurations

Match each virtual network adapter configuration mode to its corresponding network connectivity and security characteristic.

  • Bridged ModeAttaches the virtual machine directly to the physical network, allowing it to acquire its own unique IP address from the local DHCP server.
  • NAT (Network Address Translation) ModeShares the host system's IP address for outbound external network access while blocking unsolicited incoming traffic from the physical network.
  • Host-Only ModeRestricts virtual machine communication strictly to a private network shared between the host operating system and selected guest VMs.
  • Internal / Isolated ModeIsolates network traffic completely among designated guest VMs on the same hypervisor, preventing communication with both external networks and the host OS.

Answer

Bridged Mode pairs with direct physical network connection and unique IP assignment; NAT Mode pairs with shared host IP outbound access; Host-Only Mode pairs with restricted host-to-guest networking without external access; Internal / Isolated Mode pairs with strict VM-to-VM traffic isolation blocking host and physical network access.
Bridged mode acts as an independent network device on the physical local network. NAT mode routes traffic out using the host's IP address while keeping the VM off the local physical broadcast domain. Host-Only mode allows VMs and the host system to interact on an isolated private loop without external internet access. Internal/Isolated mode strictly confines network traffic to virtual machines on the same hypervisor, isolating even the host operating system.

Step-by-Step Solution

1
Identify the network mode that exposes the VM directly onto the physical network.
Bridged Mode functions as a virtual switch port on the physical LAN, receiving an IP address on the physical subnet.
Bridged configuration binds the virtual network interface directly to the host's physical network adapter.
2
Identify the network mode providing internet access while hiding the guest behind the host's IP address.
NAT Mode translates guest network traffic using the host system's IP address.
NAT provides single-IP masquerading and basic inbound security for the virtual machine.
3
Differentiate between network modes restricting external physical connectivity.
Host-Only Mode permits guest-to-host and guest-to-guest communication, whereas Internal Mode isolates guests strictly from both the external network and the host OS.
Host-Only includes a virtual network adapter on the host, while Internal mode removes host OS adapter binding entirely.

Key Concept

Virtual Network Interface Card (vNIC) Operational Modes and Security Isolation Boundaries
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Topics

Virtualization Security Considerations and Network Configurations

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