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1Y0-401 · Question #364

Scenario: The company needs to ensure that the provisioning traffic does NOT interfere with the exisiting PXE solution. The Provisioning Services servers will be connected to a 10 Gbps network.

The correct answer is A. Dedicated VLANs ensure streaming traffic is NOT visible to other VLANs in the datacenter. Dedicated VLANs logically segment network traffic, ensuring that provisioning streaming traffic remains isolated within its designated VLAN and is not visible to other networks or broadcast domains. This isolation prevents interference with existing services and enhances…

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Question

Scenario: The company needs to ensure that the provisioning traffic does NOT interfere with the exisiting PXE solution. The Provisioning Services servers will be connected to a 10 Gbps network.

Options

  • ADedicated VLANs ensure streaming traffic is NOT visible to other VLANs in the datacenter.
  • BDedicated VLANs enable streaming traffic to be encrypted with IPsec.
  • CDedicated VLANs allow the necessary TCP offload settings to be configured on the streaming NIC.
  • DDedicated VLANs provide multiple IP addresses that can be dedicated to streaming traffic.

How the community answered

(54 responses)
  • A
    94% (51)
  • C
    2% (1)
  • D
    4% (2)

Why each option

Dedicated VLANs logically segment network traffic, ensuring that provisioning streaming traffic remains isolated within its designated VLAN and is not visible to other networks or broadcast domains. This isolation prevents interference with existing services and enhances security.

ADedicated VLANs ensure streaming traffic is NOT visible to other VLANs in the datacenter.Correct

Dedicated VLANs create separate logical broadcast domains on a shared physical network, effectively isolating provisioning streaming traffic to its own segment and preventing it from being visible or interfering with traffic in other VLANs.

BDedicated VLANs enable streaming traffic to be encrypted with IPsec.

VLANs provide network segmentation at Layer 2, but they do not inherently provide encryption; encryption protocols like IPsec operate at Layer 3.

CDedicated VLANs allow the necessary TCP offload settings to be configured on the streaming NIC.

TCP offload settings are a feature of network interface cards (NICs) for performance optimization and are not directly enabled or controlled by VLAN configuration.

DDedicated VLANs provide multiple IP addresses that can be dedicated to streaming traffic.

While each VLAN typically corresponds to a unique IP subnet, the primary security and non-interference benefit of dedicated VLANs is traffic isolation, not simply the provision of multiple IP addresses.

Concept tested: VLANs for network segmentation

Source: https://www.cisco.com/c/en/us/support/docs/lan-switching/vlan/10006-8.html

Topics

#VLANs#traffic isolation#network security#provisioning services networking

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