200-155 · Question #3
Which two installation models are supported by Cisco virtual interfaces? (Choose two)
The correct answer is A. pass-through switching D. hypervisor controlled. Cisco virtual interfaces, such as those used with the Cisco Application Virtual Switch (AVS) or Nexus 1000V, support installation models that allow either direct physical network access or management by the hypervisor.
Question
Which two installation models are supported by Cisco virtual interfaces? (Choose two)
Options
- Apass-through switching
- Bstare-and-forward switching
- Cchanneled uplink
- Dhypervisor controlled
- Enative switching
How the community answered
(40 responses)- A88% (35)
- B5% (2)
- C5% (2)
- E3% (1)
Why each option
Cisco virtual interfaces, such as those used with the Cisco Application Virtual Switch (AVS) or Nexus 1000V, support installation models that allow either direct physical network access or management by the hypervisor.
Pass-through switching, often implemented via technologies like SR-IOV, allows virtual machines to directly access physical network adapters, bypassing the virtual switch for reduced latency and improved performance.
Stare-and-forward switching is not a recognized installation model for virtual interfaces in Cisco networking.
Channeled uplink refers to a physical network configuration for bundling links, not a virtual interface installation model.
Hypervisor controlled refers to the traditional virtual switch model where the hypervisor manages the virtual network interfaces and provides switching capabilities between virtual machines and the physical network, as seen with standard vSwitches or Cisco's AVS/Nexus 1000V Virtual Ethernet Modules (VEMs).
Native switching is a vague term and not a specific, commonly recognized installation model for virtual interfaces.
Concept tested: Cisco virtual interface installation models
Source: https://www.cisco.com/c/en/us/td/docs/switches/datacenter/nexus1000v/ava_install/5_2_1_AVS_1_1/b_AVS_Installation_Guide_521AVS11/b_AVS_Installation_Guide_521AVS11_chapter_01.html
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