Free Juniper JN0-680 Exam Dumps Questions & Answers

Referring to the exhibit, R1 and R2 are QFX5100s and are acting as VXLAN Layer 2
Gateways for VLAN 100 using PIM-SM signaling. R2 currently has only the (*.G) state established for VNI 5100.
Which event will cause R2 to establish the (S,G) state for VNI 5100 using R1 as the multicast source?

• A.  when R2 receives broadcast, multicast, or unknown unicast from Host A
• B.  when R2 first learns the MAC address of a locally attached host
• C.  when R2's VNI 5100 configuration is committed
• D.  when R1 receives a known unicast Ethernet frame from Host A

You are using IBGP to deploy an IP fabric. There are four spine devices, two of which are configured as route reflectors. You notice that the other two spines are not receiving all the possible paths to each leaf, and traffic cannot be load-balanced to the leaf devices.
Which two actions will resolve this problem? (Choose two.)

• A.  Configure the multihop parameter on the route reflectors.
• B.  Configure the add-path parameter on the leaf devices.
• C.  Configure the add-path parameter on the route reflectors.
• D.  Configure the multipath parameter on the route reflectors.

You are having management connectivity problems with a mixed-mode Virtual Chassis.
Which statement is correct in this scenario?

• A.  The current me0 MAC address should match the MAC address of the vme.
• B.  Each member's me0 MAC address should not match the MAC address of the vme.
• C.  The master RE's me0 MAC address should match the MAC address of the vme.
• D.  Each member's me0 MAC address should match the MAC address on the vme.

You want to converse IP address space and reduce your fabric management overhead.
For these reasons, you decided to use unnumbered Ethernet interfaces for your IP Fabric.
Which statement is correct in this scenario?

• A.  Only the IPv4 address family is supported on the interfaces.
• B.  PIM is not supported on upstream unnumbered interfaces in the PIM topology.
• C.  The donor interface for an unnumbered interface must have only one configured IP address.
• D.  OSPF is supported on unnumbered interfaces configured as a point-to-point connection.

Which statement is true for an IP Fabric to be called a Clos IP Fabric?

• A.  Spanning tree must be completely eliminated.
• B.  The protocol used is OSPF, IS-IS, or BGP.
• C.  Spine devices must be connected in a full mesh.
• D.  The number of uplinks from a leaf device equals the number of spine devices.