Prepare with Juniper : JN0-690 exam braindumps as your best preparation materials
Updated: Jun 02, 2026
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Juniper Junos Troubleshooting Sample Questions:
1. What is the name of the routing protocol process on a Junos OS device?
A) chassisd
B) snmpd
C) cosd
D) rpd
2. Which statement is correct about troubleshooting?
A) Establishing a network baseline is important to help understand when something is not working.
B) You must always have a complete understanding of the problem before you begin gathering any information.
C) The problem must be reproducible before attempting a potential solution.
D) You must be sure the problem will be resolved before attempting a potential solution.
3. An interface on your Junos device reports a device-level flag of Loopback-detected.
What is causing this flag to be reported?
A) The interface is in promiscuous mode and sees frames addressed to all physical addresses on the medium.
B) The interface was administratively disabled.
C) The link-layer protocol failed to successfully connect with the remote endpoint.
D) The interface link layer received its own frames.
4. Which three statements are correct about rpd related troubleshooting on devices running the Junos OS? (Choose three.)
A) Excessive protocol tracing can never be a cause for an overworked rpd.
B) A log for rpd scheduler slip is an indication of something that should be investigated and resolved.
C) A possible method to troubleshoot rpd scheduler slips is to temporarily enable task accounting.
D) A log for rpd scheduler slip is a common, harmless syslog and can be ignored.
E) A possible cause for an overworked rpd is excessive protocol tracing.
5. Which two tools would be used to troubleshoot BGP peering problems? (Choose two.)
A) traceoptions
B) the monitor traffic interface command
C) the link-state database
D) the inet.3 routing table
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: B,C,E | Question # 5 Answer: A,B |
Juniper Junos Troubleshooting Sample Questions:
1. What is the name of the routing protocol process on a Junos OS device?
A) chassisd
B) snmpd
C) cosd
D) rpd
2. Which statement is correct about troubleshooting?
A) Establishing a network baseline is important to help understand when something is not working.
B) You must always have a complete understanding of the problem before you begin gathering any information.
C) The problem must be reproducible before attempting a potential solution.
D) You must be sure the problem will be resolved before attempting a potential solution.
3. An interface on your Junos device reports a device-level flag of Loopback-detected.
What is causing this flag to be reported?
A) The interface is in promiscuous mode and sees frames addressed to all physical addresses on the medium.
B) The interface was administratively disabled.
C) The link-layer protocol failed to successfully connect with the remote endpoint.
D) The interface link layer received its own frames.
4. Which three statements are correct about rpd related troubleshooting on devices running the Junos OS? (Choose three.)
A) Excessive protocol tracing can never be a cause for an overworked rpd.
B) A log for rpd scheduler slip is an indication of something that should be investigated and resolved.
C) A possible method to troubleshoot rpd scheduler slips is to temporarily enable task accounting.
D) A log for rpd scheduler slip is a common, harmless syslog and can be ignored.
E) A possible cause for an overworked rpd is excessive protocol tracing.
5. Which two tools would be used to troubleshoot BGP peering problems? (Choose two.)
A) traceoptions
B) the monitor traffic interface command
C) the link-state database
D) the inet.3 routing table
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: A | Question # 3 Answer: D | Question # 4 Answer: B,C,E | Question # 5 Answer: A,B |
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