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Juniper Junos Troubleshooting Sample Questions:

1. A client has reported that they cannot establish an FTP connection to your Junos device.
Which command would you use to diagnose the problem?

A) monitor interface traffic
B) show interfaces extensive
C) monitor traffic interface
D) show interfaces terse

2. An OSPF neighbor is stuck in the Exchange state.
Which condition would cause this to happen?

A) a mismatched IP subnet
B) mismatched authentication
C) a mismatched MTU
D) a mismatched area

3. Click the Exhibit button.
-- Exhibit -user@router> show snmp statistics
SNMP statistics: Input: Packets: 246213, Bad versions: 12, Bad community names: 12, Bad community uses: 0, ASN parse errors: 0, Too bigs: 0, No such names: 0, Bad values: 0, Read onlys: 0, General errors: 0,
Total request varbinds: 227084, Total set varbinds: 67,
Get requests: 44942, Get nexts: 1 , Set requests: 10712,
Get responses: 0, Traps: 0,
Silent drops: 0, Proxy drops: 0, Commit pending drops: 0,
Throttle drops: 0,
V3 Input:
Unknown security models: 0, Invalid messages: 0
Unknown pdu handlers: 0, Unavailable contexts: 0
Unknown contexts: 0, Unsupported security levels: 0
Not in time windows: 0, Unknown user names: 0
Unknown engine ids: 0, Wrong digests: 0, Decryption errors: 0
Output:
Packets: 246093, Too bigs: 0, No such names: 0,
Bad values: 0, General errors: 0,
Get requests: 0, Get nexts: 0, Set requests: 0,
Get responses: 246025, Traps: 0
-- Exhibit --
A new SNMP session has recently been implemented on this router and is experiencing problems sending and receiving SNMP information.
Referring to the exhibit, which two problems are indicated by the received messages from the NMS? (Choose two.)

A) unknown SNMP community name
B) invalid SNMP version indicated
C) unsupported SNMP version indicated
D) unsupported SNMP community name

4. -- Exhibit -
user@router> show system switchover
Graceful switchover: On
Configuration databasE. Ready
Kernel databasE. Version incompatible
Peer statE. Steady State
-- Exhibit -
You have enabled graceful Routing Engine switchover (GRES). During verification, you switched mastership and all interfaces went down.
Referring to the output shown in the exhibit, why did the interfaces go down?

A) The synchronization failed because the Routing Engine models are different between the master and backup.
B) The synchronization failed because the Junos OS version on the backup is incompatible with the version running on the master.
C) The synchronization failed because the master Routing Engine cannot communicate with the backup Routing Engine.
D) The synchronization failed because the Junos OS version on the backup does not support GRES.

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

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

Solutions: