Which configuration represents resiliency at the hardware and software layers?

The correct answer is C. redundant supervisor and power supplies. Redundant supervisor modules and redundant power supplies together address resiliency at both layers simultaneously. The power supply is a hardware component - redundant power supplies ensure the device stays powered if one PSU fails (hardware layer resiliency). The supervisor…

Advanced Data Center Networks

Question

Options

Amultiple connections and FHRP
BHSRP and GLBP
Credundant supervisor and power supplies
Ddual uplinks and switches

How the community answered

(40 responses)

A
8% (3)
B
3% (1)
C
88% (35)
D
3% (1)

Explanation

Redundant supervisor modules and redundant power supplies together address resiliency at both layers simultaneously. The power supply is a hardware component - redundant power supplies ensure the device stays powered if one PSU fails (hardware layer resiliency). The supervisor module contains the CPU, memory, and runs the network operating system - a redundant supervisor ensures the control plane and software continue operating if the active supervisor fails (software layer resiliency), typically in conjunction with SSO/NSF. The other options address network-level redundancy (dual uplinks, FHRP protocols like HSRP/GLBP) but do not address failure within a single device at the hardware and software layers.

Topics

#hardware redundancy#supervisor redundancy#power supply redundancy#high availability

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