JN0-692 Service Provider Routing and Switching Support, Professional

JNCSP-SP Exam Objectives (Exam: JN0-692)

IGP Troubleshooting
Given a scenario, demonstrate knowledge of how to troubleshoot OSPF, OSPFv3 and IS-IS issues on Junos devices
Routing issues
Neighbor/adjacency issues
Configuration issues

BGP Troubleshooting
Given a scenario, demonstrate knowledge of how to troubleshoot BGP issues on Junos devices
Peering issues
Routing issues
Next hop resolution issues
Route reflectors and confederations
Configuration issues

Routing Policy Troubleshooting
Given a scenario, demonstrate knowledge of how to troubleshoot routing policy issues on Junos devices
Forwarding table policy issues
IGP policy issues
BGP policy issues
MPLS policy issues
Configuration issues

MPLS and MPLS VPNs Troubleshooting
Given a scenario, demonstrate knowledge of how to troubleshoot MPLS and MPLS VPN issues on Junos devices
MPLS signaling plane issues
MPLS forwarding plane issues
Layer 3 VPN signaling plane issues
Layer 3 VPN forwarding plane issues
Layer 2 VPN signaling plane issues
Layer 2 VPN forwarding plane issues
VPLS signaling plane issues
VPLS forwarding plane issues
EVPNs
Configuration issues

Multicast Troubleshooting
Given a scenario, demonstrate knowledge of how to troubleshoot multicast issues on Junos devices
RP issues
SPT issues
PIM issues
NG M-VPNs
Configuration issues

Class of Service (CoS) Troubleshooting
Given a scenario, demonstrate knowledge of how to troubleshoot CoS issues
Classification and rewrite issues
Policer issues
Queuing/scheduling issues
Packet drop issues
Configuration issues


QUESTION 1
Which two statements are true about the OSPF 2-Way state? (Choose two.)

A. It is the normal state for neighbors that are the DR and BDR.
B. It is the normal state for two neighbors that are neither the DR nor BDR.
C. It indicates that a device cannot accept any more full adjacencies.
D. It indicates that communication between two neighbors is bidirectional.

Answer: B,D

Explanation:


QUESTION 2
What is the primary mechanism that prevents BGP routing loops?

A. SPF tree
B. routing policy
C. the underlying IGP’s loop prevention mechanism
D. AS path

Answer: D

Explanation:


QUESTION 3
What are two types of valid BGP messages? (Choose two.)

A. Open
B. Notification
C. Hello
D. Request

Answer: A,B

Explanation:


QUESTION 4
Your network is configured with a full mesh of MPLS LSPs between all devices. However, when
you enter the show route table inet.2 command on any device, no LSP routing information is
displayed.
Which statement explains why this is occurring?

A. The inet.2 table does not contain LSP routing information.
B. IGP routes have a better route preference, causing the LSPs to be hidden.
C. Advanced super-user permissions are required to access the inet.2 table.
D. A filter is applied that is preventing the LSPs from being installed in the inet.2 table.

Answer: A

Explanation:


QUESTION 5
You are experiencing packet drops in your network.
Which two CoS components would be responsible? (Choose two.)

A. policing
B. RED
C. classification
D. rewriting

Answer: A,B

Explanation:

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