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Free JN0-682 Exam Braindumps (page: 11)

Page 10 of 39
PDF with 154 Questions

What is an advantage that EVPN has over VPLS when used for DCI?

  1. mass MAC withdrawal
  2. transparent BPDU transport
  3. active/standby multihoming
  4. reverse path forwarding

Answer(s): A

Explanation:

One of the primary advantages of EVPN (Ethernet VPN) over VPLS (Virtual Private LAN Service) is the capability of mass MAC withdrawal (A). This feature allows EVPN to quickly remove MAC addresses from the forwarding database when a link or node fails, improving convergence times and network stability. In contrast, VPLS lacks this efficient mechanism for withdrawing MAC addresses en masse, which can lead to slower convergence and potential traffic blackholing in the event of network changes or failures.


Reference:

Juniper Networks - EVPN Overview
Understanding EVPN



You are asked to enable visibility into your EVPN-VXLAN network traffic by monitoring traffi continuously.
Which two statements are correct in this scenario? (Choose two.)

  1. You cannot enable sFlow monitoring on each interface individually.
  2. The sFlow agent is installed by default on your OFX Series switch.
  3. You must enable sFlow monitoring on each interface individually.
  4. The sFlow agent needs to be manually installed on your QFX Series switch.

Answer(s): A,C

Explanation:

For enabling visibility into EVPN-VXLAN network traffic through continuous monitoring:
You must enable sFlow monitoring on each interface individually (Option C): sFlow is a sampling technology used for monitoring network traffic. In a Juniper environment, sFlow needs to be enabled on individual interfaces to start collecting traffic samples. This allows for granular control over which interfaces are monitored.
You cannot enable sFlow monitoring on each interface individually (Option A): This statement is incorrect, contradicting the above explanation. sFlow can and should be enabled on specific interfaces as needed.

The option stating that the sFlow agent needs to be manually installed on QFX Series switches (Option D) is inaccurate, as the sFlow feature is typically integrated into the Junos OS running on QFX Series switches. The statement about the sFlow agent being installed by default on QFX Series switches (Option B) is partially true but does not directly address the question of enabling visibility into network traffic.
Reference
Juniper Networks: Configuring sFlow Technology for Network Monitoring



You are troubleshooting a problem with traffic not reaching a remote VTEP. Referring to the exhibit, what is the reason for the problem?

  1. A conflict exists with the VLAN-to-VNI mapping.
  2. The local VTEP is misconfigured with the wrong VNI.
  3. No VTEP is configured on peer 192.0.2.20.
  4. The remote VTEP does not have the correct VNI configured.

Answer(s): D

Explanation:

https://www.juniper.net/documentation/us/en/software/junos/ovsdb-vxlan- qfx/topics/example/overlay-ping-traceroute-vxlan.html



The configuration shown in the exhibit is intended to set up assisted replication but will not commit.
Which action will create a valid configuration in this situation?

  1. Change the 10.0 address to 192.168.100.1 primary.
  2. Change the replicator inet address to 192.168.100.101.
  3. Delete replicator inet 192.168.100.1.
  4. Change the replicator inet address to 192.168.100. 51.

Answer(s): B






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