IP Fabric Architectures (Spine/Leaf) JN0-281 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   What is a key scalability advantage of the spine-leaf architecture?

   • AYou can add capacity by replacing existing switches with larger models.
   • BYou can only scale by adding more servers to existing leaves.
   • CYou can scale by adding more ports to existing spines.
   • DYou can add spines or leaves without disrupting the existing fabric.
   Reveal Solution Discussion Select an answer first
2. 27application · medium

   A network team is designing a spine-leaf fabric. They are deciding on the role of the spine switches. The design must ensure that the spine layer does not become a bottleneck and that the fabric can scale. Which statement about spine switches is correct?

   • ASpine switches should be configured to perform all routing and forwarding decisions for tenant traffic, including VXLAN encapsulation.
   • BSpine switches should be connected to each other in a full mesh to provide redundancy in case a leaf fails.
   • CSpine switches should have high port density and high forwarding capacity to interconnect all leaf switches without oversubscription.
   • DSpine switches should be connected to servers to provide direct server access and reduce the load on leaf switches.
   Reveal Solution Discussion Select an answer first
4. 28foundation · easy

   What is a key advantage of spine-leaf architecture over traditional three-tier designs?

   • AIt eliminates the need for routing protocols.
   • BIt provides predictable low latency because traffic always traverses the same number of hops.
   • CIt requires fewer switches for the same number of servers.
   • DIt uses a single layer of switches, simplifying management.
   Reveal Solution Discussion Select an answer first
5. 29foundation · easy

   What is the primary function of a leaf switch in a spine-leaf fabric?

   • ATo connect to servers and forward traffic to and from the spine layer.
   • BTo interconnect all spine switches and provide the fabric backbone.
   • CTo aggregate traffic from multiple spines and send it to the core.
   • DTo provide routing between the data center and the internet.
   Reveal Solution Discussion Select an answer first
6. 30application · medium

   A company is deploying a two-tier data center fabric to support a distributed application where virtual machines frequently communicate with each other across different hosts. The network team wants to ensure that traffic between any two servers takes the fewest possible hops and that all available paths are utilized. Which design characteristic must be implemented to achieve this requirement?

   • AConnect each leaf switch to only two spine switches and rely on Spanning Tree Protocol to block redundant links.
   • BConnect every leaf to every spine but configure all traffic to use a single spine switch to simplify troubleshooting.
   • CConnect every leaf switch to every spine switch and enable ECMP across the spine tier.
   • DConnect all servers directly to a single pair of core switches in a traditional three-tier design.
   Reveal Solution Discussion Select an answer first