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HCIE-Carrier IP H31-161 Book

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Total 180 questions

HCIE-Carrier IP (Written) Questions and Answers

Question 9

As shown in the figure, IGP is configured on RT 1 and RT 2, and route 193.3.6.0/24 is configured on RT 2. Which of the following statements is correct? Suppose OSPF is used here. Configure an access control list (ACL) on RT 2 in system mode.

ACL 2000

rule 5 permit source 193.3.6.0 0.0.0.255

Configure a routing policy in system mode:

route-policy t permit node 1

if-match acl 2000

apply backup-nexthop 106.108.4.1

apply backup-interface Ethernet4/0/4

Configure the IP FRR in system mode:

ip frr route-policy tConfigure the ethe4/0/4 interface of RT 2:

ospf cost 100

Configure BFD on RT 2:

Enable BFD on Ethernet4/0/3

bfd b1 bind peer-ip 106.108.3.1 interface Ethernet4/0/3

discriminator local 1

discriminator remote 1

min-tx-interval 10

min-rx-interval 10

process-pst

commit

Configuration on RT 1:

Enable BFD on Ethernet7/0/3

bfd b1 bind peer-ip 106.108.3.2 interface Ethernet7/0/3

discriminator local 1

discriminator remote 1

min-tx-interval 10

min-rx-interval 10

process-pst

commit

Options:

A.

The IP FRR function is enabled for the traffic bound for 193.3.6.0/24 on RT 2. It is unnecessary to configure the ethe4/0/4 interface on RT 2.

B.

Except the entry nexthop:106.108.3.1, a backup forwarding entry nexthop:106.108.3.1 is also generated for the traffic bound for 193.3.6.0/24 in the FIB table.

C.

If apply backup-interface Ethernet4/0/4 is deleted, the backup forwarding entry can also be generated because apply backup-nexthop 106.108.4.1 takes effect.

D.

Use a tester to send traffic from FE5 to FE6 after the BFD session becomes Up, run the undo ip address command in the ethe7/0/3 interface view on RT 1, and calculate the time for switchover based on the number of lost packets and packet receiving rate measured by the tester. The switchover takes less than 50 ms.

Question 10

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?

Options:

A.

The VPN route to 43.1.1.0/24 does not exist in the routing table of PE 2.

B.

The LSDB of PE 1 does not have the type 1 LSA generated by CE 1.

C.

The LSDB of PE 12 does not have the type 1 LSA generated by CE 1.

D.

The public network rout to 43.1.1.0/24 does not exist in the routing table of PE2

.

Question 11

The Huawei router is the last hop DR where the SSM Mapping function is enabled at the interface.

Some IGMPv2 hosts expect to receive (1.0.0.1, 232.1.0.1), (1.0.0.1, 232.1.0.2), and (2.0.0.1,

232.1.3.2) data. How can you satisfy the preceding requirements with the least configurations?

Options:

A.

ssm-mapping 232.1.0.2 32 1.0.0.1

B.

ssm-mapping 232.1.0.1 32 1.0.0.1

C.

ssm-mapping 232.1.0.0 24 1.0.0.1

D.

ssm-mapping 232.1.3.2 16 2.0.0.1

E.

ssm-mapping 232.1.3.1 24 2.0.0.1

F.

ssm-mapping 232.1.3.0 8 2.0.0.1

Question 12

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?

Options:

A.

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

B.

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

C.

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

D.

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

Page: 3 / 7
Total 180 questions