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Juniper Junos Troubleshooting Sample Questions:

1. Click the Exhibit button.
-- Exhibit -user@r2# run show route 100.1.1.0/24 detail
inet.0: 5 destinations, 5 routes (5 active, 0 holddown, 0 hidden)
100.1.1.0/24 (1 entry, 1 announced) *Static PreferencE. 5 Next hop typE. Reject Address: 0x8f7b5a4 Next-hop reference count: 2 StatE. Local AS: 65001 AgE. 59 Task: RT Announcement bits (1): 2-KRT AS path: 65005 I
user@r2# show protocols bgp
group ibgp { type external; export to-bgp; neighbor 10.1.2.1 { local-address 10.1.2.2; family inet { unicast; } family inet6 { unicast; } peer-as 65005; }
}
user@r2# run show bgp summary Groups: 1 Peers: 1 Down peers: 0 Table Tot Paths Act Paths Suppressed History Damp State Pending inet6.0
0 0 0 0 0 0 inet.0 0 0 0 0 0 0 Peer AS InPkt OutPkt OutQ Flaps Last Up/Dwn State|#Active/Received/Accepted/Damped...
10.1.2.1 65005 31 31 0 0 12:08 Establ inet6.0: 0/0/0/0 inet.0: 0/0/0/
user@r2# show policy-options
policy-statement to-bgp { from protocol static; then accept;
}
user@r2# run show route advertising-protocol bgp 10.1.2.1
[edit] user@r2# -- Exhibit -
Referring to the exhibit, router r2 does not advertise the static route to peer 10.1.2.1. What is the problem?

A) The static route has Next hop typE. Reject.
B) The export policy is incorrect.
C) The export policy should be applied under the [edit protocols bgp group ibgp neighbor 10.1.2.1] hierarchy.
D) An AS path loop is detected.

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

3. Two neighboring routers running OSPF were configured with the same router ID by mistake.
Which OSPF operational mode command would report the number of hello packets received with the local router's router ID?

A) show ospf statistics
B) show ospf io-statistics
C) show ospf log
D) show ospf route

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

5. Which two statements are true about firewall filters and policers? (Choose two.)

A) If an input firewall filter is configured on the same logical interface as a policer, the policer is executed first.
B) If an output firewall filter is configured on the same logical interface as a policer, the policer is executed first.
C) If an output firewall filter is configured on the same logical interface as a policer, the firewall filter is executed first.
D) If an input firewall filter is configured on the same logical interface as a policer, the firewall filter is executed first.

Solutions: