Underlay Network Design JN0-481 Practice Questions (Page 2)

Questions 6–9

1. 6foundation · easy

   In a spine-leaf topology, which statement accurately describes the typical connectivity pattern between spine and leaf switches?

   • AEach spine switch connects to every leaf switch, and leaf switches also interconnect with each other for redundancy.
   • BEach leaf switch connects to every spine switch, and spine switches do not interconnect with each other.
   • CSpine switches connect to each other in a full mesh, and leaf switches connect to a single spine switch for simplicity.
   • DLeaf switches connect to a subset of spine switches based on the VLANs they support.
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2. 7foundation · easy

   Which configuration is a Juniper best practice for underlay design?

   • AEnable spanning tree protocol (STP) on all spine and leaf switches to prevent loops.
   • BUse per-packet load balancing to ensure all links are utilized equally.
   • CUse the same MTU on all interfaces to avoid fragmentation of VXLAN packets.
   • DConfigure all leaf switches with the same AS number to simplify BGP configuration.
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4. 8foundation · easy

   Which routing protocol is commonly recommended for the underlay in a Juniper spine-leaf IP fabric?

   • AOSPF
   • BIS-IS
   • CRIP
   • DEBGP
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5. 9foundation · easy

   Which statement correctly describes ECMP in a spine-leaf underlay?

   • AECMP is used only for unicast traffic and cannot be applied to multicast or broadcast traffic.
   • BECMP requires all paths to have the same bandwidth and latency to be considered equal-cost.
   • CECMP is configured on the spine switches only, since they are the only devices with multiple paths.
   • DECMP allows traffic to be distributed across multiple equal-cost paths to the same destination.
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