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XK0-005 · Question #361

A Linux administrator needs to run a few virtual machines and containers on the physical machines with a single network interface. Which of the following networking would allow the administrator to…

The correct answer is A. Bridging. To enable virtual machines and containers to connect to the outside world from a physical host with a single network interface, network bridging is the appropriate configuration.

System Management

Question

A Linux administrator needs to run a few virtual machines and containers on the physical machines with a single network interface. Which of the following networking would allow the administrator to connect with the outside world?

Options

  • ABridging
  • BVLAN
  • CBonding/teaming
  • DVPN

How the community answered

(65 responses)
  • A
    91% (59)
  • B
    5% (3)
  • C
    2% (1)
  • D
    3% (2)

Why each option

To enable virtual machines and containers to connect to the outside world from a physical host with a single network interface, network bridging is the appropriate configuration.

ABridgingCorrect

Bridging creates a virtual network switch that connects the physical network interface to the virtual network interfaces of the VMs and containers. This setup allows the VMs and containers to appear as separate devices on the same physical network as the host machine, enabling them to obtain their own IP addresses and communicate directly with the external network.

BVLAN

VLANs segment a physical network into multiple logical networks but do not inherently provide external connectivity for VMs/containers from a single physical interface without additional routing or bridging.

CBonding/teaming

Bonding or teaming combines multiple physical network interfaces for redundancy or bandwidth and is not applicable here as the problem states a single network interface.

DVPN

A VPN creates a secure tunnel over an existing network and is not the primary mechanism for VMs/containers to establish initial external network access from their host.

Concept tested: Virtualization networking; Linux network bridging

Source: https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_and_managing_networking/configuring-a-network-bridge_configuring-and-managing-networking

Topics

#Network Bridging#Virtualization Networking#Container Networking#VM Networking

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