Juniper
JN0-643 · Question #29
JN0-643 Question #29: Real Exam Question with Answer & Explanation
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Question
Looking at the traceoptions output in the exhibit, why are the OSPF routers stuck in Init state? Mar 16 17:54:51.930726 OSPF periodic xmit from 172.14.10.1 to 224.0.0.5 (IFL 69 area 0.0.0.0) Mar 16 17:54:55.566920 ospf_trigger_build_telink_lsas : No peer found Mar 16 17:54:56.152585 ospf_trigger_build_telink_lsas : No peer found Mar 16 17:54:56.152721 ospf_set_lsdb_statE. Router LSA 192.168.2.1 adv- rtr 192.168.2.1 state QUIET->GEN_PENDING Mar 16 17:54:56.153271 OSPF trigger router LSA 0x156d0f0 build for area 0.0.0.0 lsa-id 192.168.2.1 Mar 16 17:54:56.157854 ospf_set_lsdb_statE. Router LSA 192.168.2.1 adv- rtr 192.168.2.1 state GEN_PENDING->QUIET Mar 16 17:54:56.157971 OSPF built router LSA, area 0.0.0.0, link count 2 Mar 16 17:54:56.158300 OSPF sent Hello 172.14.10.1 -> 224.0.0.5 (ge- 0/0/1.0 IFL 69 area 0.0.0.0) Mar 16 17:54:56.158380 Version 2, length 44, ID 192.168.2.1, area 0.0.0.0 Mar 16 17:54:56.158435 mask 255.255.255.0, hello_ivl 10, opts 0x2, prio 128 Mar 16 17:54:56.158485 dead_ivl 40, DR 172.14.10.1, BDR 0.0.0.0 Mar 16 17:54:56.158949 OSPF DR is 192.168.2.1, BDR is 0.0.0.0 Mar 16 17:54:56.159276 OSPF sent Hello 172.14.10.1 -> 224.0.0.5 (ge- 0/0/1.0 IFL 69 area 0.0.0.0) Mar 16 17:54:56.159331 Version 2, length 44, ID 192.168.2.1, area 0.0.0.0 Mar 16 17:54:56.159401 mask 255.255.255.0, hello_ivl 10, opts 0x2, prio 128 Mar 16 17:54:56.159563 dead_ivl 40, DR 172.14.10.1, BDR 0.0.0.0 Mar 16 17:54:56.168108 OSPF DR is 192.168.2.1, BDR is 0.0.0.0 Mar 16 17:54:58.237416 OSPF rcvd Hello 172.14.10.2 -> 224.0.0.5 (ge- 0/0/1.0 IFL 69 area 0.0.0.0) Mar 16 17:54:58.237540 Version 2, length 44, ID 192.168.2.1, area 0.0.0.0 Mar 16 17:54:58.237623 checksum 0x0, authtype 0 Mar 16 17:54:58.237698 mask 255.255.255.0, hello_ivl 10, opts 0x2, prio 128 Mar 16 17:54:58.237751 dead_ivl 40, DR 172.14.10.2, BDR 0.0.0.0
Options
- AThere is an MTU mismatch.
- BThere are duplicate router IDs.
- CThe routers are in different areas.
- DNo BDR has been elected.
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