EMT Practice Test

1. Question Content...

A. Choice A

B. Choice B

C. Choice C

D. Choice D

E. Choice E

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Question List

Question1: An L1 router has formed an adjacency with an L1-L2 router.
Under which condition will the L1-L2 router set the attach bit in its Level 1 link-state PDUs?

Question2: You have a strict-high queue configured. You notice that under bursty traffic conditions, there are tail drops on the strict-high queue.
Which action would solve this problem?

Question3: Click the Exhibit button.
R1 is exporting 2000:FEFE:100::/64 to R2 over the EBGP peering session as shown in the exhibit.

What will R1 use for this route's protocol next hop when advertising it to R2?

Question4: Click the Exhibit.

Referring to the exhibit, which type of NG MVPN route will be advertised by PE2 to PE1?

Question5: Click the Exhibit button.
[edit]
user@PE-1# run show l2 circuit connections
Layer-2 Circuit Connections:
Legend for connection status (St)
EI - - encapsulation invalid NP - - interface
h/w not present
MM - - mtu mismatch Dn - - down
EM - - encapsulation mismatch VC-Dn - -
Virtual circuit Down
CM - - control-word mismatch Up - -
operational
VM - - vlan id mismatch CF - - Call
admission control failure
OL - - no outgoing label IB - - TDM
incompatible bitrare
NC - - intf encaps not CCC/TCC TM - - TDM
misconfiguration
BK - - Backup Connection ST - - Standby
Connection
CB - - rcvd cell-bundle size bad SP - - Static
Pseudowire
LD - - local site signaled down RS - - remote
site standby
RD - - remote site signaled down XX - - unknown
Legend for interface status
Up - - operational
Dn - - down
Neighbor: 4.4.4.4
Interface Type St Time
last up #Up trans
ge-0/0/1.512 (vc 1) rmt OL
[edit]
user@PE-1# show protocols ldp
interface ge-0/0/2.0;
[edit]
user@PE-1# show protocols l2circuit
neighbor 4.4.4.4 {
interface ge-0/0/1.512 {
virtual-circuit-id 1
}
}
[edit]
user@PE-1# show interfaces ge-0/0/1
vlan-tagging;
encapsulation vlan-ccc;
unit 512 {
encapsulation vlan-ccc;
vlan-id 512;
}
[edit]
uxer@P-1 # show protocols ldp
interface all;
[edit]
user@P-2# show protocols ldp
interface all;
[edit]
user@PE-2# run show l2circuit connections
Layer-2 Circuit Connections:
Legend For connection status (St)
EI - - encapsulation invalid NP - - interface
h/w not present
MM - - mtu mismatch Dn - - down
EM - - encapsulation mismatch VC-Dn - -
Virtual circuit Down
CM - - control-word mismatch Up - -
operational
VM - - vlan id mismatch CF - - Call
admission control failure
OL - - no outgoing label IB - - TDM
incompatible bitrate
NC - - intf encaps not CCC/TCC TM - - TDM
misconfiguration
BK - - Backup Connection ST - - Standby
Connection
CB - - rcvd cell-bundle size bad SP - - Static
Psewdowire
LD - - Local site signaled down RS - - remote
site standby
RD - - remote site signaled down XX - - unknown
Legend for interface status
UP - - operational
DN - - down
Neighbor: 1.1.1.1
Interface Type St Time
last up #Up trans
ge-0/0/1.512 (vc 1) rmt OL
[edit]
user@PE-2# show protocols ldp
interface ge-0/0/2.0;
[edit]
user@PE-2# show protocols l2circuit
neighbor 1.1.1.1 {
interface ge-0/0/1.512 {
virtual-circuit-id 1;
}
}
[edit]
user@PE-2# show interfaces ge-0/0/1
vlan-tagging;
encapsulation vlan-ccc;
unit 512 {
encapsulation vlan-ccc;
vlan-id 512;
}
Referring to the exhibit, you have configured an L2 circuit that connects Site-1 and Site-2, but the L2 circuit is not functioning. The topology in this scenario is shown below.
Site-1 > PE-1 > P-1 > P-2 > PE-2 Site-2
Which action will allow communication between Site-1 and Site-2?

Question6: Which two statements are true about route leaking in a Level 1-Level 2 network environment? (Choose two.)

Question7: Click the Exhibit button.

Referring to the exhibit button, you are asked to ensure that traffic destined for the 5.5.5.0/24 network must use the LSP named Top.
Which two actions would you perform to accomplish this task? (Choose two.)

Question8: Which routing instance type is used with a Layer 3 VPN?

Question9: Packets traverse a Junos device configured for class of service.
Which two statements are true in this scenario? (Choose two.)

Question10: Click the Exhibit button.

RP1 and RP2 are acting as PIM-SM rendezvous points (Rps) in their autonomous system.
Referring to the diagram, which purpose does the MSDP session between RP1 and RP2 serve?

Question11: PE1 and PE2 provide a BGP-signaled VPLS service named VPN Blue. PE1 has site ID 2, label base 2500, and label offset 1. PE2 has site ID 4, label base 3000, and label offset 1.
Which label does PE2 expect to receive on VPLS VPN Blue traffic received from PE1 site ID 2?

Question12: Click the Exhibit button.

AS 100 is originating and sending EBGP routes to AS 200. AS 200 is acting as a transit provider and sending those routers to AS 300. AS 200 is using the confederation topology shown in the exhibit.
What will the AS path of AS 100's routes be when they are received on the AS 300 router?

Question13: Click the Exhibit button.

Given the configuration shown in the exhibit and the admin groups assigned to the equal cost links, which path will the LSP take to get from R1 to R10?

Question14: To reduce the size of OSPF Area 100, you configure the area with the no-summaries parameter. After committing this configuration change, you notice that an OSPF router in a remote area is no longer receiving Type 5 LSAs from an ASBR in Area 100.
Which statement is true in this scenario?

Question15: You are asked to configure PIM-SM in your network. Your implementation must allow for load sharing between redundant RPs and, should an RP failure occur, the RP failover time should be minimized.
Which two configuration tasks are required in this scenario? (Choose two.)

Question16: You are asked to deploy VPLS in your network as a new service for several customers, and you must identify the configuration and provisioning requirements for your customers.
In this scenario, which two statements are correct? (Choose two.)

Question17: You work for a service provider and need to build EVPN service which provides an active/active multihoming topology using a single CE at each site.
In this scenario, which two statements are true? (Choose two.)

Question18: Which two statements are associated with any-source multicast? (Choose two.)

Question19: You have configured an OSPF stub area. The routes in the stub area require external reachability.
Which statement explains how OSPF meets this requirement?

Question21: Click the Exhibit button.

Which configuration supports interprovider Layer 3 VPN option B on ASBR1 as shown in the exhibit.

Question22: Click the Exhibit button.

ISP1 has created an L3VPN to connect CE1 and CE2. The PE-CE routing protocol is OSPF.
Referring to the exhibit, which technology will allow CE1 to receive Type 1 and Type 2 LSAs from CE2?

Question23: An L2VPN (draft-kompella-mpls-l2vpn) is established between two PE routers to provide connectivity between two customer sites.
Which two statements related to this deployment are true? (Choose two.)

Question24: Click the Exhibit button.

user@R1> show ospf interface detail
Interface State Area DR ID BDR ID Nbcs
xe-0/0/1.0 BDR 0.0.0.0 2.169.37.12 11.244.245.215 1
Type LAN, address 192.161.27.11, Mask 255.255.255.248, MTU 4460, Cost 40 DR addr 192.161.37.12, BDR addr 192.168.37.11, Adj count 1, Priority 128 Hello 10, Dead 40, ReXmit 5, Not Stub fe-0/2/1.0 PtToPt 0.0.0.0 0.0.0.0 0.0.0.0
Type P2P, Address 0.0.0.0, Mask 0.0.0.0, MTU 1500, Cost 2604
Adj count 0
Hello 10, Dead 40, ReXmit 5, Not stub
Auth type: MDS, Active key ID 3, Start time 2013 Jul 19 10:00:00 PST
IPsec SA Name: sa
user@R2> show ospf interface detail
Interface State Area DR ID BDR ID Nbcs
xe-1/1/1.0 BDR 0.0.0.0 192.168.37.12 11.244.245.216 1
Type LAN, address 192.161.27.12, Mask 255.255.255.248, MTU 4460, Cost 40 DR addr 192.161.37.12, BDR addr 192.168.37.11, Adj count 1, Priority 128 Hello 3, Dead 9, ReXmit 5, Not stub fe-2/2/2.0 PtToPt 0.0.0.0 0.0.0.0 0.0.0.0
Type P2P, address 0.0.0.0, Mask 0.0.0.0, MTU 1500, Cost 2604
Adj count 0
Hello 10, Dead 40, ReXmit 5, Not Stub
Auth type: MDS, Active key ID 3, Start time 2013 Jul 19 10:00:00 PST
IPsec SA Name: sa
Which two statements are true about the OSPF adjacency displayed in the exhibit? (Choose two.)

Question25: You are connecting your OSPF router to your customer's RIP router and redistributing the customer's routes into your OSPF domain. Your OSPF routes is part of an NSSA and the ABR is injecting an OSPF default route, which you have advertised to your customer. After committing the configuration, you notice a routing loop between your OSPF router and the customer's RIP router.
Which action must you perform on your OSPF router to solve this problem?

Question26: Your company has multiple upstream BGP connections to the Internet ISP-A, ISP-B, and ISP-C. You want to ensure that all traffic coming into your network uses ISP-A.
How would you accomplish this task?

Question27: A service provider wants to start using all of their LSPs for internal traffic and not just their MPLS VPNs.
Any solution must ensure that existing VPNs and routing policies will continue to function properly.
Which MPLS traffic engineering parameter would accomplish this task?

Question28: Click the Exhibit button.

You are using PIM-SM in your network and want to ensure that all available equal-cost paths are being used for multicast traffic.
Referring to the exhibit, where must you configure the PIM join-load-balance parameter to achieve this goal?

Question29: A PE provides VLAN VPLS service to a CE attached with two links. You want to prevent Layer 2 loops and provide link redundancy.
Which two actions will accomplish this task? (Choose two.)

Question30: Click the Exhibit button.

ISP 1 wants to configure an IPv6 L3VPN over its IPv4-only MPLS network for Customer-A. PE1 has been configured as shown in the exhibit; however, IPv6 routes are not being passed between PE1 and PE2 in the Customer-A VPN.
In this scenario, which two commands are necessary on PE1 to enable IPv6 connectivity between CE1 and CE2? (Choose two.)

Question31: Click the exhibit button.
[edit protocols pim]
user@R1# show
rp {
bootstrap {
family inet {
priority 250;
}
}
local {
address 10.220.1.1;
priority 1;
group-ranges {
224.1.1.11/32;
224.0.0.0/4;
}
}
}
interface all;
interface fxp0.0 {
disable;
}
[edit protocols pim]
user@R4# show
rp {
bootstrap {
family inet {
priority 249;
}
}
local {
address 10.220.1.4;
priority 5;
group-ranges {
224.1.1.12/32;
224.0.0.0/4;
}
}
}
interface all;
interface fxp0.0 {
disable;
}
Referring to the exhibit, which router will be the RP?

Question32: Click the exhibit button.
user@PE2# run show 12circuit connections
Layer-2 Circuit Connections:
Legend for connection status (St)
EI - - encapsulation invalid NP - - interface
h/w not present
MM - - mtu mismatch Dn - - down
EM - - encapsulation mismatch Vc-Dn - -
Virtual circuit Down
CM - - control-word mismatch UP - -
operational
VM - - vlan id mismatch CF - - Call admission
control failure
OL - - no outgoing label IB - - TDM
incompatible bitrate
NC - - intf encaps not CCC/TCC TM - - TDM
misconfiguration
BK - - Backup Connection ST - - Standby
Connection
CB - - rcvd cell-bundle size bad SP - - Static
Pseudowire
LD - - local site signaled down RS - - remote
sity standby
RD - - remote site signaled down HS - - Hot-
standby Connection
XX - - unknown
Legend for interface status
UP - - operational
Dn - - down
Neighbor: 10.10.1.1
Interface Type St Time
last up #Up trans
ge-1/1/1.6 (vc 2) rmt VM
[edit protocols 12circuit]
user@PE2# show
neighbor 10.10.1.1. {
interface ge-1/1/1.6 {
virtual-circuit-id 2;
encapsulation-type ethernet-vlan;
}
}
[edit logical-systems jpe interfaces]
user@PE2# show
ge-1/1/1 {
unit 6 {
encapsulation vlan-ccc;
vlan-id 6;
family ccc;
}
}
user@PE1# run show 12circuit connections
logical-system kpe
Layer-2 Circuit Connections:
Legend for connection status (St)
EI - - encapsulation invalid NP - - interface
h/w not present
MM - - mtu mismatch Dn - - down
EM- - encapsulation mismatch VC-Dn - -
Virtual -circuit Down
CM - - control-word mismatch Up - -
operational
VM - - vlan id mismatch CF - - Call admission
control failure
OL - - no outgoing label IB - - TDM
incompatible bitrate
NC - - intf encaps not CCC/TCC TM - - TDM
misconfiguration
BK - - Backup connection ST - - Standby
Connection
CB - - rcvd cell-bundle size bad SP - - Static
Pseudowire
LD - - local site signaled down RS - - remote
site standby
RD - - remote site signaled down HS - - Hot-
standby Connection
XX - - unknown
Legend for interface status
Up - - operational
Dn - - down
Neighbor: 10.10.1.3
Interface Type St Time
last up # Up trans
ge-1/0/1.5 (vc 2) rmt VM
[edit protocols 12circuit]
user@PE1# show
neighbor 10.11.1.1 {
interface ge-1/0/1.5 {
virtual-circuit-id 2;
encapsulation-type ethernet-vlan;
}
}
[edit interfaces]
user@PE1#
ge-1/0/1 (
unit 5 {
encapsulation vlan-ccc;
vlan-id 5;
family ccc;
}
}
An LDP Layer 2 circuit between PE1 and PE2 is not passing traffic. Both PE1 and PE2 show the circuit state as VM - - vlan id mismatch.
Referring to the exhibit, which action will solve this problem?

Question33: Which two statements are true about IS-IS adjacency formation? (Choose two.)

Question34: Click the Exhibit button.
[edit] [edit]
lab@r1# show protocols lab@r2# show protocols
ospf3 { ospf3 {
area 0.0.0.0 { area 0.0.0.0 {
interface 1o0.0; interface 1o0.0;
interface ge-1/0/6.0; interface ge-1/0/7.0;
}
}
lo0 = 172.16.100.1/32 [edit]
fc00:1000::1/128 lab@r2# show protocols
ospf3 {
area 0.0.0.0 {
interface 1o0.0;
interface ge-1/1/7.0;
interface ge-1/1/6.0;
}
}
You must ensure that r1's IPv4 loopback address exists in r3's inet 0 routing table.
Referring to the exhibit, which statement is true?

Question35: A customer's traffic is traversing your network, which consists of Junos devices. You must configure class of service for the traffic to meet a service-level agreement.
In this scenario, which two statements are true? (Choose two.)

Question36: What is the final component of CoS processing on a Junos device?

Question37: Click the Exhibit button.

You implemented the configuration shown in the exhibit on your route reflector device. However, you notice traffic is transiting the route reflector rather than taking the optimum path.
Which two actions would solve the problem? (Choose two.)

Question38: Which statements are true about NG MVPNs? (Choose two.)

Question39: Click the Exhibit button.

RR:
protocols {
bgp {
group ebgd {
type external;
peer-as 100;
neighbor 172.16.1.1 {
description R1;
}
}
group ibgp {
type internal;
neighbor 172.16.1.2 {
description R2;
}
group cluster {
type internal;
neighbor 172.16.1.3 {
description R3;
}
neighbor 172.16.1.4 {
description R4;
}
neighbor 172.16.1.5 {
description R5;
}
cluster 0.0.0.1;
no-client-reflect;
}
}
}
Router RR is receiving routes from R1, R2, R3, and R4 as shown in the exhibit.
Which routes will RR advertise to R5? (Choose two.)

Question40: What are two characteristics of L3VPNs? (Choose two.)

Question41: You are provisioning a new VPLS on your PE router. Your customer needs to send Q-in-Q traffic across the VPLS.
In this scenario, which type of encapsulation is required on your PE router's VPLS interface?

Question42: During a network migration window, an engineer issues the set protocols isis overload timeout 1200 command.
In this scenario, which effect does this have on the IS-IS operations of the router?

Question43: What are two characteristics of L2 circuits? (Choose two.)

Question44: You are working with a new MPLS network that is using the default EXP classifier and default schedules. A small amount of traffic is being placed in the assured forwarding class. No other traffic is passing through the network at this time.
In this scenario, what happens to the traffic that is being placed in the assured forwarding class?

Question45: An MX Series router has received a BGP prefix from its peer. There are multiple destination routes to the BGP prefix with the default BGP route preference.
In this scenario, what is the first tie-breaker used to select the destination route?

Question46: A layer 2 circuit (RFC 4447) is established between two PE routers to provide connectivity between two customer sites.
Which two statements related to this deployment are true?

Question47: Click the Exhibit button.
[edit]
user@PE-1# show protocols
rsvp {
interface all;
}
mpls {
label-switched-path p1 {
from 1.1.1.1;
to 4.4.4.4;
no cspf;
}
interface all;
}
bgp {
group Int {
type Internal;
local-address 1.1.1.1;
family inet {
unicast;
}
family inet-vpn {
unicast;
}
neighbor 2.2.2.2;
neighbor 3.3.3.3;
neighbor 4.4.4.4;
}
}
ospf {
area 0.0.0.0 {
interface ge-0/0/2.0;
interf lo0.0;
}
}
[edit]
user@p-1# show protocols
mpls {
interface all;
}
ospf {
area 0.0.0.0 {
interface ge-0/0/1.0;
interface ge-0/0/2.0;
interface ge-1o0.0;
}
}
[edit]
user@p-2# show protocols
mpls {
interface all;
}
ospf {
area 0.0.0.0 {
interface ge-0/0/1.0;
interface ge-0/0/2.0;
interface ge-lo0.0;
}
}
[edit]
user@p-2# show protocols
rsvr {
interface all;
}
mpls {
label-switched-path p2 {
from 4.4.4.4;
to 1.1.1.1;
no-ospf
}
interface all;
}
bgp {
group INT {
type internal;
local-address 4.4.4.4,
family inet {
unicast;
neighbor 2.2.2.2;
neighbor 3.3.3.3;
neighbor 1.1.1.1;
}
}
ospf {
area 0.0.0.0 {
interface ge-0/0/2.0;
interface 1o0;
}
}
Referring to the exhibit, you have configured an L3VPN that connects Site-1 and Site-2 together, but the BGP routes are being hidden on the PE routers. The topology in this scenario is shown below.
Site-1 > PE-1 > P-1 > P-2 > PE-2 > Site-2
Which two acttions would allow communication Site-1 and Site-2? (Choose two.)

Question48: Click the Exhibit button.
[edit]
user@PE-1# show protocols
rsvp {
interface all;
}
mpls {
label-switched-path p1 {
from 1.1.1.1;
to 4.4.4.4;
no-cspf;
}
interface all;
}
bgp {
group Int {
type internal;
local-address 1.1.1.1;
family inet {
unicast;
}
family inet-vpn {
unicast;
}
neighbor 2.2.2.2;
neighbor 3.3.3.3;
neighbor 4.4.4.4;
}
}
ospf {
area 0.0.0.0 {
interface ge-0/0/2.0;
interface lo0.0;
}
}
[edit]
user@PE-1# show routing-instances CE-1
instance-type vrf;
interface ge-0/0/1.0;
route-destinguisher 65305:395;
vrf-target target:65412:100;
routing-options {
static {
route 100.100.100.0/24 next-hop
192.168.1.100;
}
}
[edit]
user@P-1# show protocols
rsvp {
interface all;
}
mpls {
interface all;
}
ospf {
area 0.0.0.0 {
interface ge-0/0/1.0;
interface ge-0/0/2.0;
interface lo0,0;
}
}
[edit]
user@P-2# show protocols
rsvp {
interface all;
}
mpls {
interface all;
}
ospf {
area 0.0.0.0 {
interface ge-0/0/1.0;
interface ge-0/0/2.0;
interface lo0,0;
}
}
[edit]
user@PE-2# show protocols
rsvp {
interface all;
}
mpls {
label-switched-path p2 {
from 4.4.4.4;
to 1.1.1.1;
no-cspf;
}
interface all;
}
bgp {
group Int {
type internal;
local address 4.4.4.4;
family inet {
unicast;
}
family inet-vpn {
unicast;
}
neighbor 2.2.2.2;
neighbor 3.3.3.3;
neighbor 1.1.1.1;
}
}
ospf {
area 0.0.0.0 {
interface ge-0/0/2.0;
interface lo0.0;
}
}
[edit]
user@PE2# show routing-instances CE-2
instance-type vrf;
interfcae ge-0/0/1.0;
route-distinguisher 65305:395;
vrf-target target:64512ꢀ:100;
routing-options {
static {
route 200.200.200.0/24 next-hop
10.1.1.100;
}
}
Referring to the exhibit, you have configured an L3VPN that connects Site-1 and Site-2 together, but the BGP routes are not showing up on the PE routers. The topology in this scenario is shown below.
Site-1 > PE-1 > P-1 > P-2 > PE-2 > Site-2
Which action should you take to allow communication between Site-1 and Site-2?

Question49: Your customer requires a Layer 2 VPN service (draft-kompella-mpls-l2vpn). You are asked to describe the operational requirements on the PE router supporting this service.
Which two statements are true in this scenario? (Choose two.)

Question50: Click the Exhibit button.

Referring to the exhibit, you control AS 24652. You are asked to ensure that traffic destined to the
23.56.83.0/24 network from ISP 4 takes the most optimum path through ISP 3. ISP 1 should be used as a backup for this traffic flow.
Which two actions would accomplish this task? (Choose two.)

Question51: Click the Exhibit button.

Referring to the exhibit, you have a network that uses PIM-SM and you need to block certain PIM register messages.
Which two statements are correct in this situation? (Choose two.)

Question52: A new service provider asked you to design its IS-IS network. You determined that two distinct IS-IS areas will be required and you must now create an ISO addressing plan for the participating intermediate systems (routers).
In this scenario, which two statements are correct? (Choose two.)

Question53: Click the Exhibit button.

As a network administrator, you are asked to configure the VPN-B routing instance so that P routers are masked in CE2-to-CE5 trace routes. For the VPN-A routing instance, P routers should appear in CE1-to- CE4 trace routes.
Referring to the exhibit, which two actions achieve this task? (Choose two.)

Question54: In a carrier-of-carrier VPN model, which type of network layer reachability information is used for the MP- BGP signaling between CE and PE routers?

Question55: Click the Exhibit.

The exhibit shows the partial configurations of PE1 and PE2. PE2 is unable to forward VPN data to PE1.
What should be configured to solve this problem?

Question56: Which command will match communities 101:111, 111:1, and 999:1111?

Question57: Click the Exhibit button.

Both autonomous systems shown in the exhibit use BGP with a full-mesh IPGP configuration within each autonomous system and EBGP between the two autonomous systems. A single route is generated on R1 and advertised into BGP.
Which two statements are true in this scenario? (Choose two.)

Question58: You are asked to implement route damping on a BGP router. There are two specific requirements for your implementation:
1. damp all prefixes with a mask length equal to or greater than /24 more aggressively than routes with a mask length between /17 and /23;
2. damp prefixes with a mask length between /0 and /16 less than routes with a mask length greater than /16.
Which policy configuration meets the requirement?

Question59: Which OSPFv3 router ID is valid?

Question60: You need to ensure that your high-priority traffic uses the best-possible route while your best-effort traffic uses a lower preference route. You want to use CoS-based forwarding to use the DSCP values of the different types of traffic to assign the LSP that should be used for the next hop.
Which three additions must be made to the configuration to satisfy the requirement? (Choose three.)

Question61: Click the Exhibit button.
user@R1# show interfaces lo0
unit 0 {
family inet {
address 10.220.1.1/32;
}
family iso {
address 49.0001.0010.0220.0101.00;
}
}
{edit protocols isis}
user@R1# show
interface ge-1/0/1.0 {
level 2 disable;
}
interface ge-1/1/0.0 {
level 1 disable;
}
interface ge-1/1/1.0 {
level 2 disable;
}
interface lo0.0;
user@R7# show interfaces lo0
unit 0 {
family inet {
address 10.220.1.7/32;
}
family iso {
address 49.0002.0010.0220.0107.00;
}
}
{edit protocols isis]
user@R7 show
interface ge-1/0/1.0 {
level 2 disable;
}
interface lo0.0
You are trying to establish an IS-IS Level 1 adjacency over ge-1/0/1 between R1 and R7 without impacting the other IS-IS adjacencies on R1.
Which configuration change would satisfy this requirement?

Question62: Which two statements are true regarding the CSPF algorithm? (Choose two.)

Question63: Which address range has been specifically reserved for use with SSM traffic?