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Exam 300-115 topic 3 question 3 discussion

Actual exam question from Cisco's 300-115
Question #: 3
Topic #: 3
[All 300-115 Questions]

Which option is a benefit of using VSS?

  • A. reduces cost
  • B. simplifies configuration
  • C. provides two independent supervisors with two different control planes
  • D. removes the need for a First Hop Redundancy Protocol
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Suggested Answer: D 🗳️
First Hop Redundancy Protocols (FHRPs) such as VRRP and HSRP were designed to allow for a highly available first IP route hop for host systems.
FHRPs allow two (or more) distinct routers to share a common IP address providing a redundant Layer-3 default gateway for end nodes. The VSS system creates a single logical router at Layer 3. This VSS routing instance fulfills this first-hop role without the need for a dedicated protocol. The VSS IP route is highly available due to MEC and the resiliency of the VSS system. VSS eliminates the need for FHRP at the aggregation layer of the data center.
Reference: http://www.cisco.com/en/US/docs/solutions/Enterprise/Data_Center/vssdc_integrate.html
by thanhtq00104 at April 3, 2025, 6:32 p.m.

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