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Juniper JN0-680 Exam Actual Questions

The questions for JN0-680 were last updated on March 27, 2024.
  • Viewing page 1 out of 16 pages.
  • Viewing questions 1-4 out of 69 questions
 

Topic 1 - Single Topic

Question #1 Topic 1

Which EVPN service consists of a single broadcast domain per EVPN instance?

  • A. a VLAN bundle service interface
  • B. a VLAN-based service interface
  • C. a port-based VLAN-aware service interface
  • D. a port-based service interface
Reveal Solution Hide Solution   Discussion  

Correct Answer: B 🗳️
Reference:
https://tools.ietf.org/html/draft-ietf-l2vpn-evpn-08#section-6.1

Question #2 Topic 1

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 QFX5100 devices cannot assume the line card role in the Virtual Chassis.
  • C. Some hardware capabilities are limited by the capabilities of the EX4300 switches.
  • D. The EX4300 devices can only assume a line card role in the Virtual Chassis.
Reveal Solution Hide Solution   Discussion  

Correct Answer: CD 🗳️
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/concept/virtual-chassis-ex-qfx-series-mixed-understanding.html
(EX4300s are only line
cards, QFX5100 can be line card).
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/concept/virtual-chassis-ex4300-virtual-chassis-understanding.html
(Supports 40GE VCPs)

Question #3 Topic 1

A customer notices that all traffic is traveling over a single link within their partially meshed IP Fabric using IBGP. While troubleshooting, the customer notices that the configuration is missing a configuration parameter.
Which parameter would the customer use to solve this problem?

  • A. accept-remote-nexthop
  • B. advertise-peer-as
  • C. add-path
  • D. multihop
Reveal Solution Hide Solution   Discussion  

Correct Answer: C 🗳️
Reference:
https://www.juniper.net/documentation/en_US/junos/topics/reference/configuration-statement/add-path-edit-protocols-bgp.html

Question #4 Topic 1


A customer has a 3-stage Clos architecture with three spine devices as shown in the exhibit.
If a single spine device fails, what percentage of the remaining bandwidth will be available from leaf node to leaf node?

  • A. approximately 25%
  • B. approximately 75%
  • C. approximately 33%
  • D. approximately 66%
Reveal Solution Hide Solution   Discussion  

Correct Answer: D 🗳️
Leaf-to-leaf communication has 3 paths via each Spine node; lose 1 Spine, lose 1 path, i.e. 33%

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