Huawei H31-161 Exam Questions Instant Access

Question 1

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?

AThe TTL value is less than 20 in data messages sent to group 232.0.0.31.

BEthernet 3/1/0 does not function as a PIM DR

CThe multicast border of group 232 0.0.31 is configured on Ethernet 3/1/0.

DSSM mapping is not configured for group 232 0 0 31.

Answer : A, B, D

Question 2

Which statement describes the delay requirement of the voice service for the IP bearer network?

ABearer network delay=50 ms, allowed maximum delay = 100 ms

BBearer network delay=150 ms, allowed maximum delay = 200 ms

CBearer network delay=10s, allowed maximum delay = 20s

DNo strict requirement.

Answer : A

Question 3

The inner VLAN tag in layer 2 user packets is used to differentiated key services from other services. If packets are not processed after being encapsulated by QinQ, the 802. 1p information of the inner VLAN tag becomes invalid. After the QinQ is employed, three methods can be used to configure conditions for sensing 8021p configuration of the inner VLAN tag:

1. Reset the 802.1p of the outer VLAN tag regardless of the existing 02 1p configurations of the inner VLAN tag.

2. Automatically swap the 802. 1p configurations of the inner VLAN tag to that of the outer VLAN tag.

3. Reset the 802.1p configurations of the outer VLAN tag based on the existing 802.1p configurations of the different VLAN tags

ATrue

BFalse

Answer : A

Question 4

About the merits and demerits of inter-AS VPN-IPv4 Option B using MP-EBGP between ASBRs,

which statement is true?

AThe inter-AS scheme in Option B is an inherent feature of VPN.

BVRFs matching PEs must be configured on the ASBR.

CAn ASBR is required to store all VPN routes, which challenges the performance of the ASBR.

DAn ASBR does not store VPN routes but sends them out as label data.

Answer : C

Question 5

Which of the following reserved IP multicast addresses is the address of all PIM routers?

A239.0.0.2

B224 0 0.13

C224.0.0.2

D224 0 0 4

Answer : B

Question 6

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?

AThe 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.

BThe 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.

CThe 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.

DIt is an error indicating that the NBR TLV of a neighbor is added twice

Answer : B

Question 7

Exhibit:

As shown in the figure, external route 1.1.1.0/24 is imported to RTA that is located in the NSSA area RTD is a backbone area router. RTB and RTC are both area border router (ABRs). OSPF configuration are as follows.

Which statement is true?

ARTD receive two external LSAs whose LS_ID is 1.1.1.0

BRTD receive an external LSAs whose LS_ID is 1.1.1.0 and advRouter is 2.2.2.2.

CRTD receive an external LSAs whose LS_ID is 1.1.1.0 and advRouter is 3.3.3.3.

DRTD receive an external LSAs whose LS_ID is 1.1.10/24 based on category 7 LSAs sent by RTA

Answer : C

Huawei HCIE Carrier IP (Written) V1.0 H31-161 Exam Questions