Free Juniper JN0-680 Exam Dumps Questions & Answers

You are building a mixed-mode Virtual Chassis with two QFX5100-24Qs, four QFX3500-
48s, two EX4600-40Fs and two EX4300-48Ts. The Virtual Chassis will not provision.
In this scenario. which statement is correct?

• A.  QFX3500s are not allowed in mixed mode.
• B.  Mixed-mode Virtual Chassis only allows for eight members.
• C.  EX4600s are only allowed with EX4300s.
• D.  EX4600s must be preprovisioned as the master and backup.

Referring to the exhibit, R1 and R2 are QFX5100 Series devices acting as VXLAN Layer 2
Gateways using PIM-SM signaling for the same VXLAN segment (VNI 5100).
The multicast group assigned to VNI 5100 is 239.0.0.1. R1 currently has an entry in its MAC table for Host B.
In this scenario. how will R1 react to receiving the Ethernet frame from Host A?

• A.  R1 will send a VXLAN encapsulated Ethernet frame along the RP-based multicast tree using 239.0.0.1 as the destination address.
• B.  R1 will send a VXLAN encapsulated Ethernet frame using 10.1.1.1 as the destination address.
• C.  R1 will send a VXLAN encapsulated Ethernet frame along the source-based multicast tree using 239.0.0.1 as the destination address.
• D.  R1 will send a VXLAN encapsulated Ethernet frame using 10.2.2.2 as the destination address.

Referring to the exhibit, which two MAC addresses are learned from the local side of the
MC-LAG link?

• A.  4c:96:14:e8:c6:fe and 4c:96:14:e8:a6:16
• B.  4c:96:14:e8:c6:fd and 4c:96:14:e8:f0:21
• C.  4c:96:14:e8:f0:21 and 4c:96:14:e8:a6:16
• D.  4c:96:14:e8:c6:fd and 4c:96:14:e8:a6:16

The VCF shown in the exhibit is not functioning correctly.
What must you do to get the VCF to function properly?

• A.  Turn on mixed fabric mode for all devices.
• B.  Set Member 0 to the VC route mode.
• C.  Set Member 1 to the backup RE role.
• D.  Deactivate mixed fabric mode for all devices.

You are implementing a Virtual Chassis using QFX5100s and EX4300s in your data center.
In this scenario, which two statements are correct? (Choose two.)

• A.  Only 10GbE VCP connections can be used between the QFX5100s and the EX4300s.
• B.  The EX4300 devices can only assume a line card role in the Virtual Chassis.
• C.  Some hardware capabilities are limited by the capabilities of the EX4300 switches.
• D.  The QFX5100 devices cannot assume the line card role in the Virtual Chassis.