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JN0-643 · Question #1

JN0-643 Question #1: Real Exam Question with Answer & Explanation

The correct answer is B. R2 is an ABR. C. R2 injects a Type 5 LSA for 184.23.12.0/24 into the backbone.. See the full explanation below for the reasoning.

Question

Referring to the exhibit, which two statements are correct? (Choose two.) [edit protocols ospf] user@R2# show area 0.0.0.6 { nssa { default-lsa default-metric 10; area-range 184.23.12.0/24; } interface ge-1/1/4; } [edit protocols ospf] user@R2# show ospf database OSPF database, Area 0.0.0.0 Type ID Adv Rtr Seq Age Opt Cksum Len Router *192.168.0.2 192.168.0.2 0x80000004 749 0x22 0x87c2 60 Router 192.168.0.3 192.168.0.3 0x80000004 399 0x22 0x94b5 60 Summary *10.0.0.0 192.168.0.2 0x80000003 19 0x22 0xe2e4 28 Summary *192.168.0.1 192.168.0.2 0x80000002 1100 0x22 0xbda7 28 OSPF database, Area 0.0.0.6 Type ID Adv Rtr Seq Age Opt Cksum Len Router 192.168.0.1 192.168.0.1 0x80000004 404 0x20 0x76db 60 Router *192.168.0.2 192.168.0.2 0x80000003 1802 0x20 0x319b 48 Summary *11.0.0.0 192.168.0.2 0x80000002 2504 0x20 0xf5d3 28 Summary *192.168.0.2 192.168.0.2 0x80000003 2153 0x20 0xc5a0 28 Summary *192.168.0.3 192.168.0.2 0x80000002 398 0x20 0xc79d 28 NSSA *0.0.0.0 192.168.0.2 0x80000001 11 0x20 0xcbf1 36 NSSA 184.23.12.0 192.168.0.1 0x80000002 447 0x28 0xb93f 36 OSPF AS SCOPE link state database Type ID Adv Rtr Seq Age Opt Cksum Len Extern *184.23.12.0 192.168.0.2 0x80000003 11 0x22 0x28d6 36

Options

  • AR2 injects a Type 3 LSA for 184.23.12.0/24 into the backbone.
  • BR2 is an ABR.
  • CR2 injects a Type 5 LSA for 184.23.12.0/24 into the backbone.
  • DR2 is an ASBR.

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