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Exam Number/Code: H12-221
Exam name: HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network)
n questions with full explanations
Certification: HUAWEI Certification
Last updated on Global synchronizing

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Q41. Which of the following statements are correct regarding OSPF Network LSAs? (Select 2 answers) 

A. Network LSAs are generated by ABR. 

B. Only the router which is connected to NBMA or Broadcast Network may generate Network LSAs. 

C. DR uses Network LSAs to describe routers that have established adjacency with it in the network, 

D. Network LSAs are flooded in the entire AS. 

Answer: B,C 

Explanation: 


Q42. <Quidway>dis igmp group verbose 

IGMP interface group report information 

Ethernet6/1/0(10.1.1.1): 

Total 1 IGMP Group reported Group: 225.0.0.1 Uptime: 00:09:03 Expires: 00:02:09 Last reporter: 10.1.1.30 Last-member-query-counter: 0 Last-member-query -timer-expiry: off Group mode: exclude Versionl-host-present-timer-expiry: off Version2-host-present-timer-expiry: 00:02:09 

The preceding information is generated after a router receives a Report message from group 

225.0.0.1 through Ethernet 6/1/0. Which type of Report message will not be processed by the router? 

A. IS_IN 

B. ALLOW 

C. BLOCK 

Answer:

Explanation: 


Q43. ABR of a Stub area does not flood Type-5 and Type-4 LSAs into the area. Therefore, the Stub area does not have the external AS routing capability. ABRs of the Stub area generate a default route into the area which enables packet forwarding to external destinations. 

A. TRUE 

B. FALSE 

Answer:

Explanation: 


Q44. Routes 172.1.12.0/24, 172.1.13.0/24, 172.1.14.0/24, and 172.1.15.0/24 can be summarized into route 172.1.8.0/21. 

A. TRUE 

B. FALSE 

Answer:

Explanation: 


Q45. Which of the following route entries matches ACL 2001 that is defined below? 

1.0.0.0/8,1.2.0.0/16,1.2.3.0/24,1.2.4.0/24,1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24 

ACL 2001 Basic ACL 2001,1 rule Ad's step is 5 

rule 0 permit source 1.2.0.0 0.0.254.255 

A. 1.2.3.0/24,1.2.4.0/24, 1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24 

B. 1.0.0.0/8 ,1.2.0.0/16,1.2.3.0/24,1.2.4.0/24,1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24 

C. 1.2.3.0/24,1.2.5.0/24,1.2.7.0/24 

D. 1.2.0.0/16,1.2.4.0/24,1.2.6.0/24,1.2.8.0/24 

Answer:

Explanation: 


Q46. Which of the following is the address range assigned by IANA for SSM service in IPv4? 

A. 232.0.0.0/24 

B. 225.0.0.0/8 

C. 232.0.0.0/8 

D. 239.0.0.0/8 

Answer:

Explanation: 


Q47. Based on BGP route selection rules, how are Origin attributes listed in descending order of 

priority? 

A. EGP > IGP > Incomplete 

B. IGP > Incomplete > EGP 

C. Incomplete > EGP > IGP 

D. IGP > EGP > Incomplete Answer: D 

Explanation: 


Q48. To which attribute type does the BGP AS-Path attribute belong? 

A. Well -known Mandatory 

B. Well-known Discretionary 

C. Optional Transitive 

D. Optional Non-transitive Answer: A 

Explanation: 


Q49. Which of the following statements regarding BGP route selection rules are true? (Select 3 

answers) 

A. BGP initially ignores routes with unreachable next hops, 

B. A summarized route takes precedence over a non-summarized route. 

C. IBGP routes take precedence over EBGP routes. 

D. If all other factors are the same, the route with the shortest length cluster list is preferred. 

Answer: A,B,D 

Explanation: 


Q50. An ACL is a series of orderly rules composed of permit deny clauses. Which of the following attributes cannot be used for defining an ACL rule? 

A. Source address 

B. Destination address 

C. Port number 

D. AS-Path Answer: D 

Explanation: