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350-401 · Question #644
350-401 Question #644: Real Exam Question with Answer & Explanation
The correct answer is D: minimal network downtime following an RP switchover. Implementing Stateful Switchover (SSO) on redundant route processors provides high availability by ensuring minimal network downtime during a route processor (RP) switchover.
Submitted by neha2k· Mar 6, 2026DOMAIN_LIST_NOT_PROVIDED
Question
Which benefit is realized by implementing SSO?
Options
- AIP first-hop redundancy
- Bcommunication between different nodes for cluster setup
- Cphysical link redundancy
- Dminimal network downtime following an RP switchover
Explanation
Implementing Stateful Switchover (SSO) on redundant route processors provides high availability by ensuring minimal network downtime during a route processor (RP) switchover.
Common mistakes.
- A. SSO does not directly provide IP first-hop redundancy; that is a function of protocols like HSRP, VRRP, or GLBP.
- B. SSO's primary benefit is not about communication between different nodes for cluster setup, but rather maintaining stateful information during an RP switchover within a single device.
- C. Physical link redundancy is achieved through etherchannels or redundant physical cabling, not directly by SSO.
Concept tested. Stateful Switchover (SSO) benefits
Topics
#Cisco SSO#Stateful Switchover#High Availability#RP redundancy
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