[2021] Pass JN0-681 Exam - Real Questions & Answers
JN0-681 Exam Questions Get Updated [2021] with Correct Answers
Conclusion
Completing the Juniper JN0-681 exam is a smart move in your data networking career that will bring you the JNCIP-DC certification. Even though mastering such a test might be difficult, with the right techniques and practice, you will easily manage to do so. Thus, opt for the official training, supplement it with the study guides that can be accessed from Amazon, and obtain your designation.
Exam Outline
Overall, there are 65 multiple-choice questions in the official exam that you need to finish within 120 minutes. Immediately after you take the real test, the exam results will be available for you. To add more, Pearson VUE inspects all Juniper exams including JN0-681. Passing such a test will earn you the JNCIP-DC designation, for which you are required to meet the following exam goals:
- Describe the EVPN VXLAN signaling principles.
- Detail Data Centre Interconnect principles (DCI).
- Describe the Data Center Management and Deployment principles and their functionalities.
- Describe the Virtual Extensible LAN features (VXLAN).
- Define the implementation of data architecture and protection within Junos OS.
- Understanding how a Multichassis LAG operates.
- Capability to incorporate multicast IP functionality.
- Grasping the operations of Layer 2 Fabric and IP Fabric.
NEW QUESTION 20
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's VNI 5100 configuration is committed
- B. when R2 receives broadcast, multicast, or unknown unicast from Host A
- C. when R1 receives a known unicast Ethernet frame from Host A
- D. when R2 first learns the MAC address of a locally attached host
Answer: C
NEW QUESTION 21
Referring to the exhibit, PE1 and PE2 are acting as MPLS Layer 3 VPN PEs to provide the DCI between DC1 and DC2, which are IP Fabrics. Leaf1 and Leaf2 are QFX5100 Series devices acting as VXLAN Layer 2 Gateways using EVPN signaling for the same VXLAN segment.
Which statement is correct about the Edge1 device in this scenario?
- A. Edge1's routing table must contain an IP route to both Leaf1 and Leaf2.
- B. Edge1 must be configured for BGP labeled unicast on its PE1-facing interface.
- C. Edge1 must be configured for MP-BGP using L3VPN signaling.
- D. Edge1 must be configured for MP-BGP using EVPN signaling.
Answer: D
NEW QUESTION 22
You have deployed a VXLAN as shown in the exhibit Leaf1, leaf3, spine1, and spine2 have been configured as VTEPs. Host1 cannot communicate with host2.
Referring to the exhibit, how would you solve this problem?
- A. A Layer 3 VXLAN gateway must be configured on at least one of the devices.
- B. A DCI connection must be created between the VLANs.
- C. The VLAN ID on the link connected to host2 must be changed to VLAN 100.
- D. Host1 and host2 must be placed in the same VRF.
Answer: A
NEW QUESTION 23
You are establishing an IP Fabric where your QFX10002-72Q spine devices are connecting to leaf devices. Each leaf is a Virtual Chassis comprised of ten EX4300s.
What is the maximum number of leaf devices supported in this scenario?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 24
When using EBGP as the underlay protocol for your IP fabric architecture, which two statements are true? (Choose two.)
- A. Spine nodes peer to both leaf and spine nodes.
- B. Leaf nodes peer to both spine and leaf nodes.
- C. Spine nodes only peer to leaf nodes.
- D. Leaf nodes only peer to spine nodes.
Answer: C,D
NEW QUESTION 25
In the exhibit, VM1 is part of the same VXLAN segment as VM3.
Which type of message will R1 initially send to R2 so that VM1 receives BUM traffic from VM3?
- A. IGMP Join (*,G)
- B. IGMP Join (S,G)
- C. PIM Join
- D. PIM Register message
Answer: C
NEW QUESTION 26
You have an EBGP-based IP Fabric.
Why do you need an export policy on each leaf in this scenario?
- A. to advertise local routes with the router reflector
- B. to accept remote server-facing IP prefixes
- C. to ensure a full mesh is formed between peers
- D. to advertise local server-facing IP prefix
Answer: D
NEW QUESTION 27
What is the purpose of the command shown in the exhibit?
- A. To stop the transmission of transit multicast traffic when there are no interested receives attached to a remote VTEP
- B. To disable the group2390.0.1 across the entire VXLAN.
- C. To stop the reception of transit multicast traffic when there are no interested receives attached to the local VTEP
- D. To disallow IGMP request for the group 239.0.01 from host attached to the local VTEP
Answer: A
NEW QUESTION 28
You are performing an in-service software upgrade (ISSU) on an QFX5100 Series device.
Which two statements are correct in this scenario? (Choose two.)
- A. The vccpd process is used to synchronize the state of the master RE to the new backup RE.
- B. The dcd process is used to validate system configuration requirements.
- C. The mgd process is used to validate system configuration requirements.
- D. The ksyncd process is used to synchronize the state of the master RE to the new backup RE.
Answer: C,D
NEW QUESTION 29
Referring to the VTEP output shown in the exhibit, which two statements are true? (Choose two.)
- A. The MAC address 52:54:00:5e:88:6a belongs to a remote host.
- B. The MAC address 52:54:00:2c:4b:a2 belongs to a remote host.
- C. The MAC address.52:54:00:5e:88:6a belongs to a local host.
- D. The MAC address 52:54:00:2c:4b:a2 belongs to a local host.
Answer: A,B
NEW QUESTION 30
In the exhibit, VM1 is part of the same VXLAN segment as VM3.
Which type of message will R1 initially send to R2 so that VM1 receives BUM traffic from VM3?
- A. PIM Join
- B. PIM Register message
- C. IGMP Join (S, G)
- D. IGMP Join (*.G)
Answer: A
NEW QUESTION 31
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. LLDP is disabled on that interface.
- C. One end of the link is configured as a Virtual Chassis port.
- D. Both ends of the link have the default configuration.
Answer: C
NEW QUESTION 32
A VXLAN has been created between devices leaf1 and leaf3.
Referring to the exhibit, which statement is true?
- A. Traffic sent from leaf1 to host2 will he dropped on leaf3.
- B. Traffic sent from leaf1 to host2 will he dropped on leaf1.
- C. Traffic sent from host1 to host2 will be tagged with VLAN ID 100 when exiting leaf3.
- D. Traffic sent from host1 to host2 will be tagged with VLAN ID 200 when exiting leaf3.
Answer: D
NEW QUESTION 33
Referring to the exhibit, Host 1 and Host 3 have exchanged traffic.
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In this scenario, which statement is true?
- A. Leaf 2 learns Host 1's MAC address when Leaf 1 queries Host 1.
- B. Leaf 2 does not learn Host 1's MAC address until Host 1 and Host 2 send traffic to each other.
- C. Leaf 2 learns Host 1's MAC address when Host 3 learns Host 1's MAC address.
- D. Leaf 2 learns Host 1's MAC address through periodic updates from Spine 2.
Answer: A
NEW QUESTION 34 
Referring to the exhibit, each leaf node is a QFX5100 acting as a VXLAN Layer 2 Gateway using EVPN signaling. Leaf 2 and Leaf 3 are both attached to the same EVPN Ethernet segment. Leaf 2 has been elected the designated forwarder for VLAN 200 on that Ethernet segment.
In this scenario, which two actions will Leaf 1 perform with the broadcast Ethernet frame received from Host A? (Choose two.)
- A. Leaf 1 will change the VLAN tag of the Ethernet frame to 200 before encapsulating it in VXLAN.
- B. Leaf 1 will send a VXLAN encapsulated copy of the Ethernet frame to Leaf 2 only.
- C. Leaf 1 will send a VXLAN encapsulated copy of the Ethernet frame to both Leaf 2 and Leaf 3.
- D. Leaf 1 will strip the VLAN tag from the Ethernet frame before encapsulating it in VXLAN.
Answer: C,D
NEW QUESTION 35
Your colleague has begun working on the base configuration for an active-active multihomed EVPN connection shown in the exhibit.
Which two actions will ensure a successful implementation? (Choose two.)
- A. Change the ESI mode on PE2 to all-active
- B. Change the ESI value on the PE1 device to 00.22.44.88.00.22.44.66.88
- C. Change the ESI value on the PE2 device to 00.00.00.00.00.00.00.00.00.00
- D. Change the ESI mode on PE1 to signal-active
Answer: A,B
NEW QUESTION 36
What are three benefits of EVPN that would improve the current E-line, E-LAN, and E-Tree delivery? (Choose three.)
- A. efficient security provisioning
- B. greater Multiprotocol Label Switching scale
- C. network resiliency between edge nodes
- D. integrated L2/L3 connectivity
- E. native support for multihoming
Answer: B,D,E
NEW QUESTION 37
In the exhibit, VM1 is part of the same VXLAN segment as VM3.
Which type of message will R1 initially send to R2 so that VM1 receives BUM traffic from VM3?
- A. PIM Join
- B. PIM Register message
- C. IGMP Join (S, G)
- D. IGMP Join (*.G)
Answer: A
NEW QUESTION 38
You are attempting to deploy a VCF as shown in the exhibit. SW-1 and SW-2 are functioning as the spine devices and SW-3 and SW-4 are functioning as the leaf devices.
However, the VCF is not functioning properly.
Which two actions would solve this problem? (Choose two.)
- A. Switch the positions of SW-2 and SW-4.
- B. Switch the positions of SW-1 and SW-3.
- C. Switch the positions of SW-1 and SW-4.
- D. Switch the positions of SW-2 and SW-3.
Answer: C,D
NEW QUESTION 39
You work in a data center where VMs and hosts are frequently moved. Your design needs to eliminate inefficient traffic flows.
In this scenario, which two solutions will satisfy this requirement? (Choose two.)
- A. VPLS
- B. VMTO
- C. EVPN
- D. VXLAN
Answer: B,C
NEW QUESTION 40
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Career Benefits
The JNCIP-DC certification most generally leads to network engineering positions, either directly with Juniper Networks or with product management consulting firms. In particular, you can apply for positions such as a Data Center Systems Administrator and Network Data Center Engineer. As for the salaries, average earnings for Data Center Systems Administrator are estimated at $65,000 annually while Network Data Center Engineer can get as much as $72,000 per year as it’s stated by Glassdoor.com.
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