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Juniper Junos Troubleshooting Sample Questions:

1. Click the Exhibit button.
-- Exhibit -=================== Bootstrap installer starting =================== Initialized the environment Routing engine model is RE-S-1800x4 Discovered that flash disk = ad0 , hard disk = ad1 mount: /dev/ad1s1f : Invalid argument ERROR: mount_partition: Mount /dev/ad1s1a /mnt failed You are now in a debugging subshell (you may not see a prompt)... # -- Exhibit -
During the boot of your MX480, you see the output shown in the exhibit. Which three statements are true? (Choose three.)

A) The boot failed because a USB drive has been inserted into the device.
B) The Routing Engine cannot mount the partition to complete booting.
C) You must swap the Routing Engine over to the backup slot to get it to boot properly.
D) The boot failed because one of the file systems is in an inconsistent state.
E) Running fsck on the partition might resolve the boot problem.

2. What controls the CLI process?

A) chassis control daemon
B) routing protocol process
C) device control daemon
D) management daemon

3. 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) show interfaces terse
B) monitor interface traffic
C) show interfaces extensive
D) monitor traffic interface

4. Click the Exhibit button.
-- Exhibit -
user@router> show configuration system services | display inheritance
ssh;
telnet;
-- Exhibit --
Referring to the exhibit, which two statements are true? (Choose two.)

A) Inbound FTP connections to the router would work.
B) Outbound FTP connections initiated from the router would not work.
C) Inbound FTP connections to the router would not work.
D) Outbound FTP connections initiated from the router would work.

5. You are asked to provide an audit trail for all user activity on your Junos device.
Which syslog configuration statement accomplishes this task?

A) user * {
any any;
}
file messages {
any notice;
authorization info;
}
B) user * {
any emergency;
}
file messages {
any notice;
authorization info;
}
file audit-commands {
authorization any;
}
C) user * {
any emergency;
}
file messages {
any notice;
authorization info;
}
file interactive-commands {
interactive-commands any;
}
D) user * {
any any;
}
file messages {
any info;
authorization info;
}

Solutions: