You observe that a router is using an unusually high amount of CPU cycles. You determine that
continuous SPF calculations in OSPF are being performed.
What are two reasons for this problem? (Choose two.)

Your Layer 2 network uses VLAN IDs 100 through 400 and you are required to load-balance these
VLANs between two different root bridges. You are currently using the default RSTP settings and
notice that all VLANs are using the same root bridge.
How do you ensure the VLANs are load-balanced between two root bridges?

An end user on interface ge-0/0/1.0 is trying to receive a multicast stream for 232.0.0.1 sourced
from but is not receiving it. You use the show igmp group command and do not see this group in
the list. You enable traceoptions for IGMP and find the following IGMPv3 report from the end
user’s host:
Jun 10 13:11:03.577641 RCV IGMP V3 Report len 16 from 192.168.1.13 intf ge-0/0/1.0
Jun 10 13:11:03.577984 Records 1
Jun 10 13:11:03.578027 Group 232.0.0.1, type IS_EX, aux_len 0, sources 0
Which configuration change is required to allow the group to be added in the router?

You recently deployed two Anycast RPs. Multicast clients in the network are reporting that they
are receiving traffic from some, but not all, multicast sources.
What are two solutions for this problem? (Choose two.)

You use static routes for connectivity to the ISP. Your ISP recently switched to using different links
for multicast and unicast traffic. Following the change, users in your company were unable to
receive multicast traffic through the ISP.
What must you configure on your router to reestablish multicast connectivity to your ISP?

— Exhibit —
user@router# run show log ospf-test
…
Jun 10 22:35:38.598494 OSPF sent Hello 10.100.0.1 -> 224.0.0.5 (ge-1/0/3.1000 IFL 77 area
0.0.0.0)
Jun 10 22:35:38.598520 Version 2, length 44, ID 10.100.1.2, area 0.0.0.0
Jun 10 22:35:38.598543 mask 255.255.255.252, hello_ivl 10, opts 0x2, prio 128
Jun 10 22:35:38.598564 dead_ivl 32, DR 10.100.0.1, BDR 0.0.0.0
Jun 10 22:35:41.522956 OSPF periodic xmit from 10.200.26.1 to 224.0.0.5 (IFL 2684276196 area
0.0.0.1)
Jun 10 22:35:42.798220 OSPF rcvd Hello 10.100.0.2 -> 224.0.0.5 (ge-1/0/3.1000 IFL 77 area
0.0.0.0)
Jun 10 22:35:42.798311 Version 2, length 48, ID 10.100.1.1, area 0.0.0.0
Jun 10 22:35:42.798334 checksum 0x0, authtype 0
Jun 10 22:35:42.798356 mask 255.255.255.252, hello_ivl 10, opts 0x2, prio 128
Jun 10 22:35:42.798377 dead_ivl 40, DR 10.100.0.2, BDR 10.100.0.1
Jun 10 22:35:45.189034 OSPF rcvd Hello 10.100.0.2 -> 224.0.0.5 (ge-1/0/3.1000 IFL 77 area
0.0.0.0)
Jun 10 22:35:45.189097 Version 2, length 44, ID 10.100.1.1, area 0.0.0.0
Jun 10 22:35:45.189118 checksum 0x0, authtype 0
Jun 10 22:35:45.189140 mask 255.255.255.252, hello_ivl 10, opts 0x2, prio 128
Jun 10 22:35:45.189162 dead_ivl 40, DR 10.100.0.2, BDR 0.0.0.0
Jun 10 22:35:45.196969 OSPF DR is 10.100.1.2, BDR is 0.0.0.0
Jun 10 22:35:45.197050 OSPF sent Hello 10.200.26.1 -> 224.0.0.5 (ge-1/0/0.0 IFL 69 area
0.0.0.1)
Jun 10 22:35:45.197076 Version 2, length 44, ID 10.100.1.2, area 0.0.0.1
Jun 10 22:35:45.197098 mask 255.255.255.252, hello_ivl 10, opts 0x2, prio 128
Jun 10 22:35:45.197119 dead_ivl 40, DR 10.200.26.1, BDR 0.0.0.0
Jun 10 22:35:46.746900 OSPF periodic xmit from 10.100.0.1 to 224.0.0.5 (IFL 2684276196 area
0.0.0.0)
— Exhibit —
Refer to the Exhibit.
Referring to the exhibit, what is preventing the OSPF neighborship with two directly connected
routers using interface ge-1/0/3 from reaching the full state?

— Exhibit —
user@router> show ospf database
Area 0.0.0.1
Type ID Adv Rtr Seq Age Opt Cksum Len
Router 172.24.255.1 172.24.255.1 0x800000d4 182 0x22 0x59f3 36
Router 172.24.255.2 172.24.255.2 0x800000d4 177 0x22 0x57f2 36
Router *172.24.255.4 172.24.255.4 0x800000dc 176 0x22 0x75fa 72
Network 172.24.124.2 172.24.255.2 0x80000007 177 0x22 0x7957 36
Summary 172.24.13.0 172.24.255.1 0x80000004 2370 0x22 0x3f62 28
Summary 172.24.23.0 172.24.255.1 0x80000002 471 0x22 0xdeb9 28
Summary 172.24.255.1 172.24.255.1 0x800000cb 2037 0x22 0x2bbb 28
Summary 172.24.255.2 172.24.255.2 0x800000cc 487 0x22 0x19ca 28
Summary 172.24.255.3 172.24.255.1 0x80000003 140 0x22 0xb2f9 28
OSPF AS SCOPE link state database
Type ID Adv Rtr Seq Age Opt Cksum Len
Extern *1.47.82.0 172.24.255.4 0x80000002 1037 0x22 0x4225 36
Extern *100.0.0.0 172.24.255.4 0x80000001 2643 0x22 0xfc88 36
user@router> show ospf neighbor
Address Interface State ID Pri Dead
172.24.124.2 ge-0/0/1.0 Full 172.24.255.2 128 36
172.24.124.1 ge-0/0/1.0 Full 172.24.255.1 128 30
user@router> show ospf interface ge-0/0/1.0 extensive
Interface State Area DR ID BDR ID Nbrs
ge-0/0/1.0 PtToPt 0.0.0.1 0.0.0.0 0.0.0.0 2
Type: P2MP, Address: 172.24.124.4, Mask: 255.255.255.0, MTU: 1500, Cost: 1
Adj count: 2
Hello: 10, DeaD. 40, ReXmit: 5, Not Stub
Auth type: None
Protection type: None
Topology default (ID 0) -> Cost: 1
user@router> show route protocol ospf table inet.0
inet.0: 11133 destinations, 11135 routes (11133 active, 0 holddown, 0 hidden)
+ = Active Route, – = Last Active, * = Both
224.0.0.5/32 *[OSPF/10] 1w0d 00:01:14, metric 1
MultiRecv
— Exhibit —
Refer to the Exhibit.
Referring to the exhibit, why are the OSPF routes missing from the routing table for this router?

— Exhibit –-

— Exhibit —
Refer to the Exhibit.
Referring to the exhibit, you are configuring an OSPF network. All OSPF adjacencies come up and
stay stable. But neither R1 nor R2 has the prefix 200.200.200.200/32 in its routing table.
What is causing this problem?

— Exhibit –-

— Exhibit —
Refer to the Exhibit.
You are troubleshooting an OSPF adjacency problem between R1 and R2.
Referring to the exhibit, what is causing this OSPF adjacency problem?

— Exhibit —
Jun 12 02:56:06 R1 rpd[60735]: RPD_OSPF_NBRDOWN: OSPF neighbor 10.50.10.25 (realm ospf-v2 fe-0/0/4.0 area 0.0.0.0) state changed from Full to Init due to 1WayRcvd (event reason: neighbor is in one-way mode)
Jun 12 02:59:36 R1 rpd[60735]: RPD_OSPF_NBRUP: OSPF neighbor 10.50.10.25 (realm ospf v2 fe-0/0/4.0 area 0.0.0.0) state changed from Init to ExStart due to 2WayRcvd (event reason: neighbor detected this router)
Jun 12 02:59:36 R1 rpd[60735]: RPD_OSPF_NBRUP: OSPF neighbor 10.50.10.25 (realm ospfv2 fe-0/0/4.0 area 0.0.0.0) state changed from Exchange to Full due to ExchangeDone (event reason: DBD exchange of slave completed)
— Exhibit —

Refer to the Exhibit.
You notice that there is a problem with the OSPF adjacency between two routers, R1 and R2. The
relevant system logs from R1 are shown in the exhibit.
What would cause this behavior?