JN0-643 Online Practice Questions and Answers

Which statement is true about MVRP?

A. It allows you to split a broadcast domain into multiple isolated broadcast subdomains.

B. It dynamically manages VLAN registration in a LAN.

C. It maps multiple independent spanning-tree instances onto one physical topology.

D. It is a Layer 2 protocol that facilitates network and neighbor discovery.

-- Exhibit -user@router> show log ospf Sep 19 00:22:13.420315 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:14.475671 OSPF periodic xmit from 14.0.0.1 to 224.0.0.5 (IFL 75 area 0.0.0.0) Sep 19 00:22:14.855490 OSPF periodic xmit from 12.0.0.1 to 224.0.0.5 (IFL 84 area 0.0.0.0) Sep 19 00:22:14.857304 OSPF packet ignoreD. no matching interface from 12.0.0.1, IFL 85 Sep 19 00:22:17.386726 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:20.855690 OSPF packet ignoreD. subnet mismatch from 10.0.0.2 on intf ge-0/0/1.0 area 0.0.0.0 Sep 19 00:22:20.856108 OSPF rcvd Hello 10.0.0.2 -> 224.0.0.5 (ge-0/0/1.0 IFL 75 area 0.0.0.0) Sep 19 00:22:20.856177 Version 2, length 44, ID 10.0.0.2, area 0.0.0.0 Sep 19 00:22:20.856229 checksum 0x0, authtype 0 Sep 19 00:22:20.856299 mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128 Sep 19 00:22:20.856352 dead_ivl 40, DR 0.0.0.0, BDR 0.0.0.0 Sep 19 00:22:21.752438 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:22.013285 OSPF packet ignoreD. area mismatch (0.0.0.1) from 12.0.0.2 on intf ge- 0/0/4.0 area 0.0.0.0 Sep 19 00:22:22.013749 OSPF rcvd Hello 12.0.0.2 -> 224.0.0.5 (ge-0/0/4.0 IFL 84 area 0.0.0.0) Sep 19 00:22:22.013804 Version 2, length 44, ID 10.0.0.2, area 0.0.0.1 Sep 19 00:22:22.013890 checksum 0xd51e, authtype 0 Sep 19 00:22:22.013944 mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128 Sep 19 00:22:22.014012 dead_ivl 40, DR 12.0.0.2, BDR 0.0.0.0 Sep 19 00:22:22.016909 OSPF packet ignoreD. no matching interface from 12.0.0.2, IFL 85 Sep 19 00:22:22.434956 OSPF hello from 11.0.0.2 (IFL 83, area 0.0.0.0) absorbed Sep 19 00:22:23.045916 OSPF periodic xmit from 12.0.0.1 to 224.0.0.5 (IFL 84 area 0.0.0.0) Sep 19 00:22:23.047959 OSPF packet ignoreD. no matching interface from 12.0.0.1, IFL 85 Sep 19 00:22:23.309957 OSPF periodic xmit from 11.0.0.1 to 224.0.0.5 (IFL 83 area 0.0.0.0) Sep 19 00:22:23.528614 OSPF periodic xmit from 14.0.0.1 to 224.0.0.5 (IFL 75 area 0.0.0.0) Sep 19 00:22:25.772835 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:29.950015 OSPF hello from 11.0.0.2 (IFL 83, area 0.0.0.0) absorbed Sep 19 00:22:30.622112 OSPF packet ignoreD. MTU mismatch from 11.0.0.2 on intf ge-0/0/2.0 area 0.0.0.0 Sep 19 00:22:30.713279 OSPF packet ignoreD. subnet mismatch from 10.0.0.2 on intf ge-0/0/1.0 area 0.0.0.0 Sep 19 00:22:30.713432 OSPF rcvd Hello 10.0.0.2 -> 224.0.0.5 (ge-0/0/1.0 IFL 75 area 0.0.0.0) Sep 19 00:22:30.713503 Version 2, length 44, ID 10.0.0.2, area 0.0.0.0 Sep 19 00:22:30.713553 checksum 0x0, authtype 0 Sep 19 00:22:30.713622 mask 255.255.255.252, hello_ivl 10, opts 0x12, prio 128 Sep 19 00:22:30.713677 dead_ivl 40, DR 0.0.0.0, BDR 0.0.0.0 -- Exhibit -Click the Exhibit button.

Referring to the exhibit, what is preventing the OSPF adjacency on interface ge-0/0/4 from forming?

A. area mismatch

B. subnet mismatch

C. MTU mismatch

D. authentication mismatch

-- Exhibit

-- Exhibit -Click the Exhibit button.

Referring to the exhibit, you are asked to prevent the 184.16.1.0/24 route from entering the backbone.

Which configuration statements would accomplish the task?

A. On router R1, issue the set protocols ospf area 3 nssa area-range 184.16.1.0/24 restrict command.

B. On router R3, issue the set protocols ospf area 0 area-range 184.16.1.0/24 restrict command.

C. On router R3, issue the set protocols ospf area 3 area-range 184.16.1.0/24 restrict command.

D. On router R3, issue the set protocols ospf area 3 nssa area-range 184.16.1.0/24 restrict command.

-- Exhibit

-- Exhibit -

Click the Exhibit button.

Referring to the configuration shown in the exhibit, which statement is true?

A. RP2 stops sending all SA messages to its peer.

B. RP1 stops sending all SA messages to its peer.

C. RP2 stops sending SA messages for the group 224.7.7.7 from source 192.168.100.10 to RP1.

D. RP1 stops sending SA messages for the group 224.7.7.7 from source 192.168.100.10 to RP2.

-- 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?

A. The region name is configured the same on both devices.

B. The VLAN mapping is configured incorrectly.

C. The MSTP revision is configured incorrectly.

D. The bridge priority has not been configured correctly.

-- Exhibit -user@switch> show poe controller Controller Maximum Power Guard Management Status Lldp index power consumption band Priority 0 130.00W 121.00W 0W Class AT_MODE Disabled -- Exhibit -

Click the Exhibit button.

A new user's Class 3 IP phone is connected to port ge-0/0/7 on an EX Series switch; however, it is not working.

Referring to the exhibit, what is the cause?

A. The model of the EX Series switch being used supports PoE only on interfaces ge-0/0/0 through ge- 0/0/6.

B. The PoE port is set to class 0.

C. The port has been shut down because the phone's power requirements exceed the PoE power budget for the switch.

D. The guard-band is insufficient.

If your WAN-edge router is multihomed to different ISPs, which two BGP attributes would you modify to affect outbound traffic? (Choose two.)

A. MED

B. origin

C. local preference

D. community

-- Exhibit

-- Exhibit -Click the Exhibit button.

Referring to the exhibit, R4 in AS 100 is sending routes 20.0.0.0/8 and 10.0.0.0/8. R3 sees the routes but R5 does not.

What must be configured on the R3 router for the R5 router to install the routes?

A. a next-hop self policy

B. as-override toward the R5 router

C. as-loops 2

D. local-as 100

Which three statements are correct about the PIMoutput shown in the exhibit (Choose three)?

A. R1 has the shortest path tree connection to the multicast source

B. The joint request path me from the client at 192 168 35 2

C. The RP is upstream from R1

D. RP is the RP

E. The multicast stream is flowing out of R1 THROUGH interface ge 0/0/10 0

You have been asked to implement 802.1X in your network and to ensure that all authorized users continue to be permitted should the RADIUS server fail. Which solution will satisfy this requirement?

A. Implement the persistent MAC feature with the override option.

B. Implement the server fail fallback feature with the override option.

C. Implement the persistent MAC feature with the use-cache option.

D. Implement the server fail fallback feature with the use-cache option.