300-320 Question #21: Real Exam Question with Answer & Explanation

The correct answer is C: vPC. vPC (Virtual Port Channel) is the correct answer. vPC is a Cisco data center technology that allows two physical switches to appear as a single logical switch to connected devices. With vPC, both peer switches can actively forward traffic simultaneously. This enables HSRP to oper

Question

Which virtualization technology allows for HSRP protocol to be used in the active/active configuration where both HSRP Layer 3 devices can forward network traffic?

Options

AOTV
BVSS
CvPC
DVDC

Explanation

vPC (Virtual Port Channel) is the correct answer. vPC is a Cisco data center technology that allows two physical switches to appear as a single logical switch to connected devices. With vPC, both peer switches can actively forward traffic simultaneously. This enables HSRP to operate in an active/active fashion because both Layer 3 switches are genuinely forwarding packets-not just one active and one standby as in traditional HSRP. OTV (A) extends Layer 2 over IP WANs. VSS (B) merges two switches into one logical device but is a campus technology. VDC (D) partitions a single physical switch into multiple virtual devices.

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