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Juniper Junos Troubleshooting Sample Questions:

1. Which command would be helpful in determining the time at which the protocols started?

A) show configuration
B) show chassis hardware
C) show route
D) show system uptime

2. Click the Exhibit button.
-- Exhibit -user@router> show chassis environment
Class Item Status Measurement Power Power Supply A OK Power Supply B Absent
Temp FPC 0 OK 28 degrees C / 82 degrees F FPC 1 OK 27 degrees C / 80 degrees F Power Supply A OK 22 degrees C / 71 degrees F Power Supply B Absent SSB 0 OK 30 degrees C / 86 degrees F Backplane OK 22 degrees C / 71 degrees F Routing Engine 0 OK 26 degrees C / 78 degrees F Routing Engine 1 Testing
Fans Rear Fan OK Spinning at normal speed Front Upper Fan OK Spinning at normal speed Front Middle Fan OK Spinning at normal speed Front Bottom Fan OK Spinning at normal speed
Misc Craft Interface OK -- Exhibit -
Referring to the exhibit, which two statements are true about the chassis? (Choose two.)

A) Power Supply B is installed in the system but has failed.
B) Routing Engine 1 has failed.
C) Routing Engine 1 is installed in the system but is still initializing.
D) Power Supply B is not installed in the system.

3. Which three statements are true about performing an ISSU on a Junos device? (Choose three.)

A) Every PFE on each FPC downloads the new software from the backup RE.
B) Any unsupported PICs will cause the ISSU process to fail with "Error: incompatible hardware detected."
C) ksyncd synchronizes the kernel on the backup RE with the master RE.
D) The master RE verifies disk space on both REs, unsupported configurations, and unsupported PICs.
E) The backup RE verifies disk space on both REs, unsupported configurations, and unsupported PICs.

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 a common, harmless syslog and can be ignored.
C) A log for rpd scheduler slip is an indication of something that should be investigated and resolved.
D) A possible cause for an overworked rpd is excessive protocol tracing.
E) A possible method to troubleshoot rpd scheduler slips is to temporarily enable task accounting.

5. Which command is useful in testing the correct operation of an SNMP configuration toward an NMS?

A) show snmp mib
B) show snmp v3
C) request snmp spoof-trap
D) show snmp rmon

Solutions: