Logo ExamsQA
Exit
Official Bank 0/225

HCNP-R&S-IERN (Huawei Certified Network Professional-Implementing Enterprise Routing Network) (H12-221) - Huawei Exam Questions

Last updated on June 20, 2026

97% Exam Compliance
225 Total Questions
1
Question
How many bits of the MAC address space is available for mapping IP multicast addresses?
Options
A 23
B 22
C 25
D 24
Discussion (0 comments)

to join the discussion

Community Discussion

No discussions yet. Be the first to ask!

2
Question
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 1.2.1.0 0.0.254.255
Options
A 1.2.0.0/16,1.2.4.0/24,1.2.6.0/24,1.2.8.0/24
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 1.2.3.0/24,1.2.4.0/24, 1.2.5.0/24, 1.2.6.0/24,1.2.7.0/24,1.2.8.0/24
Discussion (0 comments)

to join the discussion

Community Discussion

No discussions yet. Be the first to ask!

3
Question
Which of the following statements regarding an AS-external-LSA are true? (Select 3 answers)
Select 3
Options
A The Link State ID together with Advertising Router fields are used to uniquely identify an ASexternal-LSA.
B The Advertising Router field specifies the Router ID of an ASBR.
C The Net mask field specifies the network mask of an advertised destination.
D The Link State ID field specifies the network segment address of an advertised destination.
Discussion (0 comments)

to join the discussion

Community Discussion

No discussions yet. Be the first to ask!

4
Question
Which of the following statements are correct regarding BGP attributes? (Select 2 answers)
Select 2
Options
A BGP attribute can be extended to 256 types
B AS_PATH is an optional transitive attribute
C Well known discretionary attribute may not be included in each BGP update message, such as origin attribute
D Till now, there are 16 BGP attributes
Discussion (0 comments)

to join the discussion

Community Discussion

No discussions yet. Be the first to ask!

5
Question
Which of the following problems can be solved by IGMP Snooping?
Options
A Validity of IGMP Report messages.
B A router receives large quantities of IGMP Report messages due to the existence of large number of hosts on the network.
C Broadcasting of multicast data on Layer 2 devices.
D Receiver hosts support only IGNPv2, but only the SSM model is used on the network.
Discussion (0 comments)

to join the discussion

Community Discussion

No discussions yet. Be the first to ask!

Finish Practice?

Are you sure you want to finish? This will end your practice session.