최신 H31-161 무료덤프 - Huawei HCIE-Carrier IP (Written)

문제1

Exhibit:

RTA is an edge route of the MPLS backbone network. It provides the access for users under layer 2 switches and differentiates user by subinterface. User access VALN 100 and has subscribed to the His ViIP , and services. According to 802 1p priorities, the value 0 indicates the HIS service, 1 indicates the VoIp service and 4 indicate the IPTV service. The DiffSerc model is deployed in E-LSP mode on the MPLS network, And the STC is configured for subinterface on the access side of RTA (the qos phb disable command is not configured). Outgoing on the traffic on the G1/0/0.1 suninterface involves the His VoIP, and services on the access side of RTA.
Which statements about EXP about values corresponding to these three services is true?

A. Only two EXP values be contains, and the values are certain.

B. Only one EXP may be contained, and the value is uncertain

C. The EXP values must be 0, 1, and 4.

D. At least three EXP values be contained, and the values are uncertain.

정답: D

문제2

As shown in the figure, RTA, RTB, RTC are interconnected over IS-IS, RTA, RTD, RTE, and RTC are interconnected over OSPF. Both IS-IS and OSPF use the default costs. RSVPTE is enabled on all routers and the interfaces between these routers. The Loopback0 interface of RTC is 192.168.0.3/32 and is advertised in both OSPF and ISIS areas. 192.168.0.3/32 is also the LSR ID of MPLS. Configurations of the MPLS and tunnel on RTA:
#
mpls lsr-id 192.168.0.1
mpls
mpls te
mpls rsvp-te
mpls te cspf
interface Tunnel1/0/0
tunnel-protocol mpls te
destination 192.168.0.3
mpls te tunnel-id 1
mpls te path metric-type igp
mpls te igp metric absolute 1
mpls te commit
#
Which path will be selected when the tunnel becomes Up? What is the metric of this tunnel?

A. RTA-RTD-RTE-RTC; 3

B. RTA-RTB-RTC; 20

C. RTA-RTD-RTE-RTC; 1

D. RTA-RTB-RTC; 1

정답: C

문제3

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

A. SA messages can be transmitted only between RPs in different PIM networks.

B. The SA message contains the multicast source and group information

C. The router uses the SA cache to store SA messages.

D. The router checks the RPF after receiving SA messages.

정답: A

문제4

Exhibit:

RTA is an edge router of the MPLS backbone network. It provides the access services for users under Layer 2 switches and different users by subinterface . User A access VLAN 12 and has subscribed to the His, VoIP, and IPTV services. According to 802 1p priorities, the value indicates the His service, 1 indicates the VoIp service, and 4 indicates the IPTV service. RTA is configured on he access side as follows.

What is the descending order of service priorities?

A. HSI, IPTV, VoIP

B. VoIP, IPTV, HSI

C. HSI, VoIP, IPTV

D. IPTV, VoIP, HSI

정답: A

문제5

<Quidway>display current-configuration
#
multicast routing-enable
#
interface Ethernet6/1/0
ip address 10.1.1.1 255.255.255.0
igmp timer query 40
#
igmp
The preceding are partial multicast router configurations. How long is the interval (in seconds) for sending IGMP General Query messages when IGMP is enabled on Ethernet 6/1/0?

A. 40

B. 60

C. 15

D. 10

정답: D

문제6

As shown in the figure, PE 1 sets up an MP-IBGP neighbor relationship
with PE 2 and they communicate over MPLS LDP. A CE communicates with a PE over EBGP.Add two entries to the routing table of the VRF on PE 1:
VRF1 RD 100:1, IRT 1:1, ERT 2:2VRF2 RD 100:2, IRT 1:1, 2:2, ERT 2:2, 3:3 Add two entries to the routing table of the VRF on PE 2:
VRF1 RD 100:1, IRT 1:1, ERT 2:2
VRF2 RD 100:2, IRT 2:2, ERT 1:1
Import a valid static route 1.1.1.1/32 on CE 1. Suppose CE 2, CE 3, and CE 4 do not have route 1.1.1.1/32 in the local routing table. Which of the following routers have route 1.1.1.1/32 in the unicast routing table?

A. CE 4

B. CE 2

C. PE 1

D. CE 3

정답: A,B

문제7

Which statement is false?

A. The SSM Mapping function can map the IS_IN(S,G) message of the IGMPv3.

B. The PIM SM simultaneously supports SSM multicast and ASM multicast

C. The SSM multicast forwarding model does not require shared trees.

D. The SSM multicast provides a better access control scheme than the ASM multicast.

정답: A

문제8

All nodes in the topology belong to the same IGP are
a. They can learn routers from each other and have the TE capability. The tunnels configured below can be Up. Refer to the following configuration of RTA,Which of the following statements are true?
#
mpls lsr-id 1.1.1.1
mpls
mpls te
mpls rsvp-te
mpls te cspf
#
explicit-path pri-path
next hop 3.1.1.2
next hop 4.1.1.2
next hop 5.1.1.2
#
explicit-path bypass-1
next hop 2.1.1.2next hop 6.1.1.1
#
explicit-path bypass-2
next hop 2.1.1.2
next hop 7.1.1.2
#
explicit-path bypass-3
next hop 8.1.1.2
next hop 9.1.1.2
#
interface Tunnel1/0/0
ip address unnumbered interface LoopBack0
tunnel-protocol mpls te
destination 4.4.4.4
mpls te tunnel-id 100
mpls te record-route label
mpls te path explicit-path pri-path
mpls te fast-reroute
mpls te commit
#
interface Tunnel2/0/0
ip address unnumbered interface LoopBack0
tunnel-protocol mpls te
destination 2.2.2.2
mpls te tunnel-id 101
mpls te record-route label
mpls te path explicit-path bypass-1
mpls te bypass-tunnel
mpls te protected-interface GigabitEthernet 3/0/0
mpls te commit
#
interface Tunnel2/0/1
ip address unnumbered interface LoopBack0
tunnel-protocol mpls te
destination 3.3.3.3
mpls te tunnel-id 102
mpls te record-route label
mpls te path explicit-path bypass-2
mpls te bypass-tunnel
mpls te protected-interface GigabitEthernet 3/0/0
mpls te commit
#
interface Tunnel2/0/2ip address unnumbered interface LoopBack0
tunnel-protocol mpls te
destination 4.4.4.4
mpls te tunnel-id 103
mpls te record-route label
mpls te path explicit-path bypass-3
mpls te bypass-tunnel
mpls te protected-interface GigabitEthernet 3/0/0
mpls te commit
#

A. TE FRR node protection can be enabled on Tunnel2/0/2 to protect Tunnel1/0/0.

B. TE FRR cannot be enabled on any tunnels.

C. TE FRR link protection can be enabled on Tunnel2/0/0 to protect Tunnel1/0/0.

D. TE FRR node protection can be enabled on Tunnel2/0/1 to protect Tunnel1/0/0.

정답: D

문제9

An IPTV bearer network requires the broadband TV (BTV), VOD, and near video on demand (NVOD) services. Video programs use the standard MPEG 4 codec format. Which of the following statements about the QoS policy are true?

A. Ensure that the VOD/NVOD service has a higher priority than the BTV service and guarantee QoS of both the upstream and downstream traffic.

B. To ensure the IPTV service quality on the user side, reserve 4 Mbit/s bandwidth for the IPTV service for each user and plan extra bandwidth for the broadband Internet service.

C. Ensure that the BTV service has a higher priority than the VOD/NVOD service, and forward the downstream traffic and some protocol packets, such as the IGMP and PIM packets in priority.

D. To ensure the IPTV service quality on the user side, reserve 2.5 Mbit/s bandwidth for the IPTV service for each user and plan extra bandwidth for the broadband Internet service.

정답: C,D

문제10

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?

A. Outer label of the packets

B. Inner label of the packet

C. MAC address and VLAN ID in the PDU encapsulated in the packet

D. Destination MAC address in the L2 PDU encapsulation in the packet

정답: B

문제11

BFD for RSVP is a mechanism that uses BFD to check the connectivity of RSVP neighbors. As shown in the figure, TE FRR node protection is deployed to protect a node, the blue path is the primary LSP (RTA -> RTB -> RTC -> RTD -> RTE) and the red one is the bypass LSP (RTB -> RTF -> RTD). Which of the following statements about BFD for RSVP are true?

A. TE FRR will be triggered only when the link between RTB (acting as the PLR) and RTC (the node under protection) is faulty or RTC is faulty but will not be triggered when the link between RTC and RTD (acting as the MP) is faulty. This problem can be solved by establishing a BFD session between RTB and RTD. In this case, faults may be reported falsely or be missed.

B. The BFD session triggered by RSVP is for the exclusive use of RSVP.

C. BFD for RSVP needs to be enabled only on RTB if you expect to set up a BFD for RSVP session on RTB to check the connectivity between RTB and RTC.

D. Only RSVP HELLO needs to be enabled if RSVP GR instead of TE FRR is deployed on a network.

정답: A

문제12

Two BGP routes with the same prefix are received from two peers. The two routes have the same attributes except the next hop (NH1 and NH2).NH1 is iterated to the directly connected A and B, NH2 to directly connected C and D.
If maximum load-balancing2 is configured in BGP and a router can be configured with a maximum of six paths for load balancing, how many paths does a forward information base (FIB) generate regarding this prefix?

A. 4

B. 1

C. 3

D. 2

정답: A

문제13

Which of the following statements about the merits of the HoVPN networking are true?

A. Only local VPN routes need to be maintained on an SPE and remote routes on the SPE are represented by a default route or an aggregate route, reducing the load of the SPE.

B. If the UPE are SPE are separated by an IP/IPMLS network, they can be connected through a generic routing encapsulation (GRE) or LSP runnel . A hierarchical MPLS VPN provides good scalability.

C. The BGP/MPLS VPN can be deployed layers by layer. When the performance of a super strum provider edge (SPE) is insufficient, a user-end provider edge (UPE) can be added and the SPE moved to a lower layer. When the access capability of a UPE is insufficient, and SPE can be added.

D. The SPE and UP exchange routes and advertise labels through MP-BGP. Each UPE runs only one - BGP peer, reducing system overheads and simplifying configuration.

E. Packets are forwarded between a UPE and an SPE after being label. The UPE and SPE are connected through an interface (or a subinterface), helping reduce the usage of limited interface resources.

정답: B,D,E

문제14

RTA is a leaf router that directly connects to host A through interface GigabiteEthernet 1/0/0. The interface is configured as follows:

Hos a sends a IGMPv2 Report message to group 2321.2.3. Which entry can be displayed by the displayed by the igmp ssm-mapping group command?

A. (10.10.1.1, 232.1.1.) and (10.10.1., 2321.2.3)

B. (10.10.1.1, 232.1.2.2)

C. (10.10.1.1, 232.1.1.1)

정답: B

최신 H31-161 무료덤프 - Huawei HCIE-Carrier IP (Written)

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