— Exhibit –

— Exhibit —
Click the Exhibit button.
Referring to the exhibit, which two statements are true regarding the MSTP port role and port state
of ge-0/0/0 and ge-0/0/1 on SW1?

Which two statements are correct about MSTP? (Choose two.)

You are asked to implement MSTP on all devices in your Layer 2 network.
Which three parameters must match on all devices within the same region? (Choose three.)

You are asked to implement VSTP on all devices in your Layer 2 network.
Which three statements are correct? (Choose three.)

— Exhibit —
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
— Exhibit —
Click the Exhibit button.
Referring to the exhibit, which two statements are correct about the MSTP configuration? (Choose
two.)

— Exhibit —
user@switch-1> show spanning-tree bridge
STP bridge parameters
Context ID : 0
Enabled protocol : MSTP
STP bridge parameters for CIST
…

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 : 4
Time since last topology change : 42 seconds
Topology change initiator : ge-0/0/10.0
Topology change last recvd. from : 00:19:e2:55:24:8c
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 : 8194.b0:c6:9a:73:27:90
Hello time : 2 seconds
Maximum age : 20 seconds
Forward delay : 15 seconds
Number of topology changes : 4
Time since last topology change : 42 seconds
Topology change initiator : ge-0/0/10.0
Topology change last recvd. from : 00:19:e2:55:24:8c
Local parameters
Bridge ID : 8194.b0:c6:9a:73:27:90
Extended system ID : 0

Internal instance ID : 2
user@switch-1> show spanning-tree mstp configuration
MSTP information
Context identifier : 0
Region name : my-mstp-config
Revision : 1
Configuration digest : 0x91ee8012e6851d931adae71da4060690
MSTI Member VLANs
0 0,400-4094
1 1-199
2 200-399
user@switch-2> show spanning-tree bridge
STP bridge parameters
Context ID : 0
Enabled protocol : MSTP
STP bridge parameters for CIST
…
STP bridge parameters for MSTI 1
MSTI regional root : 8193.b0:c6:9a:73:39:90
Hello time : 2 seconds
Maximum age : 20 seconds

Forward delay : 15 seconds
Number of topology changes : 3
Time since last topology change : 320 seconds
Topology change initiator : ge-0/0/9.0
Topology change last recvd. from : b0:c6:9a:73:27:81
Local parameters
Bridge ID : 8193.b0:c6:9a:73:39:90
Extended system ID : 0
Internal instance ID : 1
STP bridge parameters for MSTI 2
MSTI regional root : 4098.b0:c6:9a:73:39:90
Hello time : 2 seconds
Maximum age : 20 seconds
Forward delay : 15 seconds
Number of topology changes : 3
Time since last topology change : 320 seconds
Topology change initiator : ge-0/0/9.0
Topology change last recvd. from : 00:19:e2:55:24:8d
Local parameters
Bridge ID : 4098.b0:c6:9a:73:39:90
Extended system ID : 0
Internal instance ID : 2
user@switch-2> show spanning-tree mstp configuration
MSTP information
Context identifier : 0

Region name : my-mstp-config
Revision : 10
Configuration digest : 0x91ee8012e6851d931adae71da4060690
MSTI Member VLANs
0 0,400-4094
1 1-199
2 200-399
— Exhibit —
Click the Exhibit button.
A colleague recently implemented MSTP in your Layer 2 network and is having trouble
determining why it is not working properly. You are asked to review the outputs provided in the
exhibit to determine the cause.
Referring to the exhibit, what is causing the issue?

— Exhibit —
MSTP information

Context identifier : 0
Region name : Juniper
Revision : 1
Configuration digest : 0xfdbe318c0ae799ae6dfdae4c882c67ee
MSTI Member VLANs
0 0,4-4094
1 1-3
— Exhibit —
Click the Exhibit button.
A network engineer has configured MSTP on several switches for loop protection. You must verify
the work and ensure that the appropriate parameters match on all switches.
Which operational command provides the required output shown in the exhibit?

— Exhibit —
user@SwitchA# show protocols mstp
configuration-name region1;

bridge-priority 16k;
msti 1 {
bridge-priority 16k;
vlan [10 20];
}
msti 2 {
bridge-priority 8k;
vlan [30 40];
}
user@SwitchB# show protocols mstp
configuration-name region1;
bridge-priority 8k;
msti 1 {
bridge-priority 16k;
vlan [10 20];
}
msti 2 {
bridge-priority 8k;
vlan [30 40 50];
}
— Exhibit —
Click the Exhibit button.
Referring to the exhibit, a customer observes that the MSTP instance between SwitchA and
SwitchB is not converging correctly.

What is causing the problem?

Your company makes extensive use of VSTP in your network for loop protection. The network is at
the VSTP VLAN limit and must protect additional VLANs.
Which command allows you to protect additional VLANs?

You are asked to set up 802.1X port authentication for all access ports on your EX Series switch.
You must ensure that only one user is allowed to authenticate per port and all other attempts are
denied.
Which supplicant mode must be used?