QUESTION 66
Exhibit.

As shown in the figure, complex traffic classification is configured for RTA’s upstream GigabitEthernet 1/0/0.
The QoS is configured as follows:

A tester sends TCP packets from GE 1/1 to GE 1/2 at 40 1.2.2 IF DSCP values of packets GE receives are not
46, what are the possible causes?

QUESTION 67
In PIM DM, which of the following statements about state-refresh message processing are true?

QUESTION 68
Which of the following methods can be used to ensure loop-free and reachable Martini VPLS links?

QUESTION 69
Exhibit.

As shown in the figure, RTA belongs to AS 100 and has an EBGP neighbor relationship with RTC, RTD, and
TTB is an IBGP neighbor of RTC, RTD, and RTE, and the four router all belong to AS 200.
(Note: The attributed not involved In the question use the default values)
1. Import route 1.1.1/32 from RTA and advertise this route to RTB by way of RTC, RTD, and RTE,
respectively (suppose the three routers between is IGP, EGP, and INCOMPL:ETE, respectively. Whichroute
will RTB prefer?
2. Suppose the preceding policy is retained. Apply inbound routing policies on RTC, RTD, and RTE so that
the values of the MED attribute of route 1.1.1.32 learned by RTB are 40, and 20 respectively. Which route will
RTB prefer?
3. Suppose the preceding policy is retained. Apply an inbound routing policy on RTB so that the values of the
AS_ PATH attribute of route 1.1.1.1/32
Learned from RTC, RTD, and RTE are 10 20 30,and 10 20, respectively. Which route will RTB prefer?
4. Suppose the preceding policy is retained. Apply an inbound routing policy on RTB so that the values of the
local-preference attribute of route 1.1.1.1.32 learned from RTC and RTE are 30 and 120 , respectively. Which
route will RTB prefer.
5. Suppose the preceding policy is retained. Apply inbound policies on RTC. RTD and RTE so that the values
of the preferred-value attribute of route 1.1.1.132 are 50.40 and 30 respectively. Which route will RTB prefer?

QUESTION 70
On a VPLS network a PE router receive a packet that containers layer 2 user data from a PE. How does the PE
router determine the source VSI of this packet?

QUESTION 71
On a router, HQoS parameter are configured for the users. The CURP of user 1 is Mbit/s. The CUR and PIR
ofuser 2 are 0 Mbit/s and 10 Mbit/s, respectively. The CIR and PR of user 3 are 0 Mbit and 20 Mbit/s
respectively. These three users join group with a bandwidth of 10 Mbit/s.
Which statements is true?

QUESTION 72
OSPF BFD helps fast detect neighbor down events. OSPF BFD can be in which of the following states?

QUESTION 73
Exhibit:

As shown in the figure, OSPF process 100 runs on both PEs and CEs, and VPN routers are transmitted between PE 1 and PE 2 through PGB CE 1 enables interface address 43.1.1.0/24 in area 0.A route to 43.1.10/24. However, does not exist in the routing table of CE 2. What are the possible causes?

QUESTION 74
Exhibit.

The preceding information shows the configurations of Ethernet 6/1/1 and ensure created based on received
IGMPv2 Report messages. Which action does Ethernet 6/1/1 after receiving Leave messages for group
224.1.2.3?

QUESTION 75
Interface Ethernet 3/1/0 is configured as follows:

Ethernet 3/1/0 receives multicast group 232 0.0.31 IGMFV2 Report messages, If no multicast traffic sent to
group 232.0.31 can be detected on Ethernet 3/1/0, which of the following causes may be true?

QUESTION 76
With the SA, which of the following, option is correct?

QUESTION 77
A PW is found Down after VPLS is configured on an NE series router. What are possible causes?

QUESTION 78
An Ethernet cable connects RTA to RTB through Ethernet 0/0.the OSPF neighbor relationship can be established without enabling the OSPF authentication function is enabled, Which of the following statements about the OSPF relationship between RTA and RTB are true?

QUESTION 79
Multicast configurations in PIM-SM are as follows:
#
multicast routing-enable
#
acl number 2000
rule 5 permit source 239.0.0.0 0.0.0.255
rule 10 deny
#
acl number 2999
rule 5 permit source 233.32.32.0 0.0.0.255
rule 10 deny#
interface Ethernet10/2/0
ip address 10.1.1.1 255.255.255.0
pim sm
#
interface LoopBack0
ip address 1.1.1.1 255.255.255.255
pim sm
#
interface LoopBack2
ip address 2.2.2.2 255.255.255.255
pim sm
#
interface LoopBack3
ip address 3.3.3.3 255.255.255.255
pim sm
#
pim
c-bsr Ethernet10/2/0
c-rp Ethernet10/2/0 priority 192
c-rp LoopBack0 group-policy 2000
c-rp LoopBack3
static-rp 2.2.2.2 2999 preferred
#
Based on the preceding configurations, which of the following statements about the mapping relationships between the specified group and the RP are true?

QUESTION 80
1.Onthe backbone network , if a PE is connect to a CE, VPN instances need to breconfiguredon the PE, and
interface on the PE for connecting to the CE must be bound to a VPN instance. After binding an interface to a
VPN instance, you must configure the IP address of the interface between PEs, IS-IS configured for PE
interworking. PLSA basic capabilities and MPLS LSP are configured for LSP establishment, and MP _IBGP
is configured for VPN route exchange VPN routesexchange , LDAP is short for Label Distribution Protocol,
and IBGP is short for interior Border gateway protocol.
2. A CE exchange route exchange routers with a PE over External Border gateway Protocol (EBGP.
Configure interior gateway protocol (IGP) on the IS-IS+MPLS backbone networking toachievethe
interworking between PEs and IP routers.

QUESTION 81
Refer to the exhibit

As shown in the figure, basic BGP/MPLS IP VPN configuration has been completed on routers. Which of the following configurations is incorrect for advertising default routes in VPN instances on the SPE?
Note: All configurations are performed on the SPE.

QUESTION 82
Refer to the exhibit.

As shown in the figure, CE 1 and CE 3 belong to VPN A, CE 2 and CE 4
belong to VPN B, and users on different VPNs are not allowed to access each other. Which of the following configurations can enable mutual access between CE 1 and CE 4 but forbid cross-VPN access between other CEs?
Configuration of PE 1:
sysname PE 1
#
ip vpn-instance vpna
route-distinguisher 100:1vpn-target 1:1 3:3 export-extcommunity
vpn-target 1:1 3:3 import-extcommunity
# i
p vpn-instance vpnb
route-distinguisher 100:2
vpn-target 2:2 4:4 export-extcommunity
vpn-target 2:2 4:4 import-extcommunity
#
Configuration of PE 2:
#
sysname PE 2
#
ip vpn-instance vpna
route-distinguisher 200:1
vpn-target 1:1 export-extcommunity
vpn-target 1:1 import-extcommunity
#
ip vpn-instance vpnb
route-distinguisher 200:2
vpn-target 2:2 4:4 export-extcommunity
vpn-target 2:2 4:4 import-extcommunity

QUESTION 83
On a BGP/MPLS VPN, a PE and a CE communicate with each other over OSPF. Which command cannot be configured on the PE?

QUESTION 84
In the inter-AS multicast, which statement about transmitting MSDP SA messages is false?

QUESTION 85
In PIM-SM, how does each router learn the location of the RP?

QUESTION 86
Which statement describes the packet loss ratio requirement of the voice service for the IP bearer network?

QUESTION 87
Which of the following statements about the L2VPN are true?

QUESTION 88
Which statement about MPLS Echo packets is true?

QUESTION 89
If a (*, ) entry exists in the RP, Which of the following statements about the source registration are true in PIM_SM?