Juniper JN0-690 : Junos Troubleshooting

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Juniper JN0-690 Exam Syllabus Topics:

Juniper Junos Troubleshooting Sample Questions:

1. Which two commands help to identify traffic drops due to oversubscription? (Choose two.)

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

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

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

4. Click the Exhibit button.

You recently added an EBGP neighbor to R1 and you are receiving a single BGP route for their internal network. You notice that on R2 the route learned from C1 is being marked as hidden because the next hop is unusable.
Referring to the exhibit, what should you do to resolve the problem?

A) Create a next-hop-self import policy on R2 and apply this policy to IBGP.
B) Create a next-hop-self import policy and apply this policy to IBGP.
C) Create a next-hop-self import policy on R1 and apply this policy to EBGP.
D) Create a next-hop-self export policy on R1 and apply this policy to IBGP.

5. Click the Exhibit button.
-- Exhibit -user@router> show system users
9:28PM up 2 days, 3:02, 2 users, load averages: 0.06, 0.13, 0.09 USER TTY FROM LOGIN@ IDLE WHAT lab u0 -9:13PM - -cli (cli) admin p0 10.210.15.30 9:45PM - -cli (cli) -- Exhibit -
Referring to the exhibit, which two statements are true? (Choose two.)

A) The lab user's session will be cleared after issuing the command request system logout user lab.
B) Both user sessions will be cleared after issuing the command request system logout terminal.
C) The admin user is connected through a Telnet or SSH session.
D) The admin user is connected through a console session.

Solutions: