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JN0-643 · Question #42

JN0-643 Question #42: Real Exam Question with Answer & Explanation

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Question

Referring to the exhibit, which two statements are correct about the MSTP configuration? (Choose two.) user@switch> show spanning-tree bridge STP bridge parameters Context ID : 0 Enabled protocol : MSTP STP bridge parameters for CIST Root ID : 32768.00:19:e2:55:1a:01 Root cost : 0 Root port : ge-0/0/10.0 CIST regional root : 32768.00:19:e2:55:1a:01 CIST internal root cost : 20000 Hello time : 2 seconds Maximum age : 20 seconds Forward delay : 15 seconds Hop count : 19 Message age : 0 Number of topology changes : 2 Time since last topology change : seconds Topology change initiator : ge-0/0/10.0 Topology change last recvd. from : 00:19:e2:55:24:8c Local parameters Bridge ID : 32768.b0:c6:9a:73:27:90 Extended system ID : 0 Internal instance ID : 0 STP bridge parameters for MSTI 1 MSTI regional root : 4097.b0:c6:9a:73:27:90 Hello time : 2 seconds Maximum age : 20 seconds Forward delay : 15 seconds Number of topology changes : 2 Time since last topology change : seconds Topology change initiator : ge-0/0/1.0 Topology change last recvd. from : b0:c6:9a:73:39:81 Local parameters Bridge ID : 4097.b0:c6:9a:73:27:90 Extended system ID : 0 Internal instance ID : 1 STP bridge parameters for MSTI 2 MSTI regional root : 4098.b0:c6:9a:73:39:90 Root cost : 20000 Root port : ge-0/0/1.0 Hello time : 2 seconds Maximum age : 20 seconds Forward delay : 15 seconds Hop count : 19 Number of topology changes : 2 Time since last topology change : seconds Topology change initiator : ge-0/0/1.0 Topology change last recvd. from : b0:c6:9a:73:39:81 Local parameters Bridge ID : 8194.b0:c6:9a:73:27:90 Extended system ID : 0 Internal instance ID : 2

Options

  • AThe local switch is not the root bridge for MSTI 1.
  • BThe local switch is the root bridge for MSTI 1.
  • CThe local switch is the root bridge for MSTI 2.
  • DThe local switch is not the root bridge for MSTI 2.

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