nerdexam
Juniper

JN0-643 · Question #134

{master:0}[edit] user@switch# show protocols vstp vlan 100; {master:0}[edit] user@switch# run show spanning-tree bridge STP bridge parameters Context ID : 1 Enabled protocol : RSTP STP bridge…

The correct answer is A. No interfaces are assigned to VLAN 100. See the full explanation below for the reasoning.

Question

{master:0}[edit] user@switch# show protocols vstp vlan 100; {master:0}[edit] user@switch# run show spanning-tree bridge STP bridge parameters Context ID : 1 Enabled protocol : RSTP STP bridge parameters for VLAN 100 Root ID : 32868.50:c5:8d:ae:94:80 Hello time : 2 seconds Maximum age : 20 seconds Forward delay : 15 seconds Message age : 0 Number of topology changes : 0 Local parameters Bridge ID : 32868.50:c5:8d:ae:94:80 Extended system ID : 1 Internal instance ID : 0 {master:0}[edit] user@switch# run show spanning-tree interface {master:0}[edit] user@switch# Based on the output shown in the exhibit, why is VSTP not working for VLAN 100?

Options

  • ANo interfaces are assigned to VLAN 100.
  • BYour MSTI is misconfigured.
  • CRSTP is configured in addition to VSTP.
  • DNo native VLAN is configured.

How the community answered

(31 responses)
  • A
    84% (26)
  • B
    6% (2)
  • C
    3% (1)
  • D
    6% (2)

Community Discussion

No community discussion yet for this question.

Full JN0-643 Practice