Juniper JN0-690

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Juniper Junos Troubleshooting Sample Questions:

1. In the Junos OS, which type of file dumps the program's environment in the form of memory pointers, instructions, and register data to a file in the event of a panic or other serious malfunction?

A) core file
B) backup file
C) log file
D) configuration file

2. A technician has reported an alarm on your device running the Junos OS. You suspect it is due to the temperature in the rack. Which two commands will confirm your suspicion? (Choose two.)

A) show chassis hardware
B) show chassis firmware
C) show chassis alarms
D) show chassis environment

3. -- Exhibit --
Local traffic capture on r1:
Address resolution is OFF.
Listening on ge-5/3/0.0, capture size 1514 bytes
22:16:33.610374 Out IP (tos 0xc0, ttl 1, id 34562, offset 0, flags [none], proto: OSPF (89), length:
76) 10.1.2.1 > 224.0.0.5: OSPFv2, Hello, length 56 [len 44]
Router-ID 1.1.1.1, Backbone Area, Authentication TypE. none (0)
Options [External, LLS]
Hello Timer 10s, Dead Timer 40s, Mask 255.255.255.252, Priority 128
LLS: checksum: 0xfff6, length: 3
Extended Options (1), length: 4
Options: 0x00000001 [LSDB resync]
[edit]
user@r1# run show ospf interface
Interface State Area DR ID BDR ID Nbrs
ge-5/3/0.0 PtToPt 0.0.0.0 0.0.0.0 0.0.0.0 0
lo0.1 DR 0.0.0.0 1.1.1.1 0.0.0.0 0
[edit]
user@r1# run show ospf neighbor
Local traffic capture on r2:
Address resolution is OFF.
Listening on ge-5/3/1.0, capture size 1514 bytes
22:16:42.238030 Out IP6 (class 0xc0, hlim 1, next-header: OSPF (89), length: 36)
fe80::6687:88ff:fe6c:6769 > ff02::5: OSPFv3, Hello, length 36
Router-ID 2.2.2.2, Backbone Area
Options [V6, External, Router]
Hello Timer 10s, Dead Timer 40s, Interface-ID 0.0.0.1, Priority 128
Neighbor List:
user@r2# run show ospf interface OSPF instance is not running -- Exhibit -
Click the Exhibit button.
Referring to the exhibit, routers r1 and r2 are connected to each other by interfaces ge-5/3/0 and ge-5/3/1 respectively. They do not become OSPF neighbors.
Which two statements are true? (Choose two.)

A) r2 is configured for OSPFv3.
B) r2 is configured for OSPFv2.
C) r1 is configured for OSPFv3.
D) r1 is configured for OSPFv2.

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

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

5. Which process is responsible for managing interface devices on the system?

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

Solutions: