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Huawei H31-161 試験概要:

Huawei H31-161 試験シラバストピック:

H31-161試験に関するQ&Aまとめ

Huawei HCIE-Carrier IP (Written) 認定 H31-161 試験問題：

問題 #1

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

問題 #2

An interface sends 300 Mbit/s user BE traffic. The downstream HQoS scheduling is configured at this interface as follows SQ: cir 15 Mbit/s pw 200 Mbit/s FQ. queue be Ipq shaping 10 CQ: port-queue be Ipq shaping shaping-percentage 10 outbound, port shaping 100 How much traffic is at the downstream outbound interface after HQoS scheduling?

A. 20 Mbit/s
B. 200 Mbit/s
C. 100 Mbit/s
D. 10 Mbit/s

問題 #3

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?

A. The LSDB of PE 1 does not have the type 1 LSA generated by CE 1.
B. The LSDB of PE 12 does not have the type 1 LSA generated by CE 1.
C. The public network rout to 43.1.1.0/24 does not exist in the routing table of PE2
.
D. The VPN route to 43.1.1.0/24 does not exist in the routing table of PE 2.

問題 #4

Refer to the exhibit.

As shown in the topology, RTB directly connects to RTC through the POS
interface. To implement the TE function, RTB and RTC are configured as follows:
Configuration of RTB:
mpls lsr-id 2.2.2.2
mpls
mpls te
mpls rsvp-te
mpls te cspf
#
isis 1
is-level level-2
cost-style compatible
network-entity 00.2222.2222.2222.00
traffic-eng level-1-2
log-peer-change
#
interface Pos4/1/0
clock master
link-protocol ppp
ip address 22.33.22.33 255.255.0.0
isis enable 1
mpls
mpls templs rsvp-te
Configuration of RTC:
#
mpls lsr-id 3.3.3.3
mpls
mpls te
mpls rsvp-te
mpls te cspf
#
isis 1
is-level level-2
cost-style wide
network-entity 00.3333.3333.3333.00
traffic-eng level-1-2
log-peer-change
# #
interface Pos5/1/0
link-protocol ppp
ip address 22.33.33.22 255.255.0.0
isis enable 1
mpls
mpls te
mpls rsvp-te
When a neighbor relationship is set up between RTB and RTC and becomes robust, the following information can be found in the LSDB of RTB.
Database information for IS-IS(1)
--------------------------------
Level-2 Link State Database
LSPID Seq Num Checksum Holdtime Length ATT/P/OL
2222.2222.2222.00-00* 0x00007191 0x6689 1190 239 0/0/0
SOURCE 2222.2222.2222.00
NLPID IPV4
AREA ADDR 00
INTF ADDR 22.33.22.33
NBR ID 3333.3333.3333.00 COST: 10
+NBR ID 3333.3333.3333.00 COST: 10
IP-Internal 22.33.0.0 255.255.0.0 COST: 10
+IP-Extended 22.33.0.0 255.255.0.0 COST: 10
Router ID 2.2.2.2
3333.3333.3333.00-00 0x0000001c 0x14a3 1184 188 0/0/0
SOURCE 3333.3333.3333.00
NLPID IPV4
AREA ADDR 00INTF ADDR 22.33.33.22
+NBR ID 2222.2222.2222.00 COST: 10
+IP-Extended 22.33.0.0 255.255.0.0 COST: 10
Router ID 3.3.3.3
Two records are generated for the same NBR ID, as shown in bold fonts. Which statement is true?

A. The cost-style parameter of RTB is compatible. Therefore, two type-length-values (TLVs) (No.2 TLV and No.22 TLV) are generated locally. The two TLVs are the same in size.
B. The cost-style parameter of RTB is compatible. Therefore, two TLVs (No.2 TLV and No.22 TLV) are generated locally. No.2 TLV is larger than No.22 TLV.
C. It is an error indicating that the NBR TLV of a neighbor is added twice
D. The cost-style parameter of RTB is compatible. Therefore, two TLVs (No.2 TLV and No.22 TLV) are generated locally. No.2 TLV is smaller than No.22 TLV.

問題 #5

Exhibit:

As shown in the figure, Super VLAN is enabled on SWA (a LAN switch). The Super VLAN configuration is as follows:

Which of the following specifics the time order in which the preceding debugging information is generated?

A. 3--2--1--4
B. 1--4--2--3
C. 1--2--3--4
D. 3--4--1--2

解説：