質問 1：
The exhibit shows an output from a QFX5100 Series switch serving as an MC-LAG peer.
Which two statements are true in this scenario? (Choose two.)
A. ae0.0 is functioning as an ICL.
B. et-0/0/51.0 is a member link of qfx5100-1 within an MC-AE bundle.
C. et-0/0/51.0 is a standalone link and not part of an MC-AE bundle.
D. ae1.0 is functioning as an ICL.
正解：A,C
質問 2：
Which protocol replicates forwarding information between MC-LAG peers?
A. ICCP
B. VRRP
C. LLDP
D. VCCP
正解：A
質問 3：
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 first learns the MAC address of a locally attached host
B. when R1 receives a known unicast Ethernet frame from Host A
C. when R2 receives broadcast, multicast, or unknown unicast from Host A
D. when R2's VNI 5100 configuration is committed
正解：C
質問 4：
In a preprovisioned mixed Virtual Chassis, which statement is correct about converting a 40Gbps QSFP+ to a Virtual Chassis port in an EX4300?
A. LLDP is enabled on that interface.
B. Both ends of the link have the default configuration.
C. LLDP is disabled on that interface.
D. One end of the link is configured as a Virtual Chassis port.
正解：D
質問 5：
You have deployed a multicast server attached to a QFX5100 Series device serving as a
VTEP.
Which two statements are correct in this scenario? (Choose two.)
A. By default, the QFX5100 will send copies of the multicast packets to locally attached devices in the same VLAN that are interested receivers only.
B. By default, the QFX5100 will encapsulate the multicast packets in VXLAN and forward them to remotely connected VTEPs with interested receives only.
C. By default, the QFX5100 will send copies of the multicast packets to all locally attached devices in the same VLAN.
D. By default, the QFX5100 will encapsulate the multicast packets in VXLAN and forward them to all remotely connected VTEPs.
正解：C,D
質問 6：
The MC-LAG group shown in the exhibit is providing high availability services for the directly connected servers.
Where does Juniper Networks recommend you provide the backup liveness detection?
A. on the ae2 interface
B. on the ae1 interface
C. on the management interfaces
D. on the ICL-PL connection
正解：C
質問 7：
Which two statements are correct when performing a unified ISSU? (Choose two.)
A. The master Routing Engine and backup Routing Engine must be running the same software version before you can perform a unified ISSU.
B. Unicast RPF-related statistics are saved across a unified ISSU, and the unicast RPF counters are not reset to zero during a unified ISSU.
C. The backup Routing Engine must be running the most recent software version before you can perform a unified ISSU.
D. Unicast RPF-related statistics are not saved across a unified ISSU, and the unicast RPF counters are reset to zero during a unified ISSU.
正解：A,C
The exhibit shows an output from a QFX5100 Series switch serving as an MC-LAG peer.
Which two statements are true in this scenario? (Choose two.)
A. ae0.0 is functioning as an ICL.
B. et-0/0/51.0 is a member link of qfx5100-1 within an MC-AE bundle.
C. et-0/0/51.0 is a standalone link and not part of an MC-AE bundle.
D. ae1.0 is functioning as an ICL.
正解：A,C
質問 2：
Which protocol replicates forwarding information between MC-LAG peers?
A. ICCP
B. VRRP
C. LLDP
D. VCCP
正解：A
質問 3：
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 first learns the MAC address of a locally attached host
B. when R1 receives a known unicast Ethernet frame from Host A
C. when R2 receives broadcast, multicast, or unknown unicast from Host A
D. when R2's VNI 5100 configuration is committed
正解：C
質問 4：
In a preprovisioned mixed Virtual Chassis, which statement is correct about converting a 40Gbps QSFP+ to a Virtual Chassis port in an EX4300?
A. LLDP is enabled on that interface.
B. Both ends of the link have the default configuration.
C. LLDP is disabled on that interface.
D. One end of the link is configured as a Virtual Chassis port.
正解：D
質問 5：
You have deployed a multicast server attached to a QFX5100 Series device serving as a
VTEP.
Which two statements are correct in this scenario? (Choose two.)
A. By default, the QFX5100 will send copies of the multicast packets to locally attached devices in the same VLAN that are interested receivers only.
B. By default, the QFX5100 will encapsulate the multicast packets in VXLAN and forward them to remotely connected VTEPs with interested receives only.
C. By default, the QFX5100 will send copies of the multicast packets to all locally attached devices in the same VLAN.
D. By default, the QFX5100 will encapsulate the multicast packets in VXLAN and forward them to all remotely connected VTEPs.
正解：C,D
質問 6：
The MC-LAG group shown in the exhibit is providing high availability services for the directly connected servers.
Where does Juniper Networks recommend you provide the backup liveness detection?
A. on the ae2 interface
B. on the ae1 interface
C. on the management interfaces
D. on the ICL-PL connection
正解：C
質問 7：
Which two statements are correct when performing a unified ISSU? (Choose two.)
A. The master Routing Engine and backup Routing Engine must be running the same software version before you can perform a unified ISSU.
B. Unicast RPF-related statistics are saved across a unified ISSU, and the unicast RPF counters are not reset to zero during a unified ISSU.
C. The backup Routing Engine must be running the most recent software version before you can perform a unified ISSU.
D. Unicast RPF-related statistics are not saved across a unified ISSU, and the unicast RPF counters are reset to zero during a unified ISSU.
正解：A,C
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