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Updated: Jul 20, 2026
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Huawei H12-221-ENU Exam Overview:
| Certification Vendor: | Huawei |
| Exam Name: | HCIP-Routing&Switching-IERS (Huawei Certified ICT Professional - Implementing Enterprise Routing and Switching Network) |
| Exam Number: | H12-221-ENU |
| Available Languages: | English, Chinese Simplified, Spanish, French, Russian, Portuguese |
| Passing Score: | 600/1000 |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 Years |
| Exam Price: | USD 160 |
| Exam Format: | Single Choice, Multiple Choice, True/False, Drag and Drop |
| Related Certifications: | HCIP-Routing & Switching |
| Sample Questions: | Huawei H12-221-ENU Sample Questions |
| Exam Way: | Pearson VUE Test Center or Huawei Authorized Testing Center |
| Pre Condition: | Huawei recommends HCIA-Routing & Switching level knowledge or equivalent networking experience. |
| Official Syllabus URL: | https://support.huawei.com/learning/ |
Huawei H12-221-ENU Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Topic 1: IP Multicast | - Multicast Technologies
|
| Topic 2: Routing Technologies | - BGP
|
| Topic 3: IPv6 Technologies | - IPv6 Fundamentals
|
| Topic 4: Network Security | - Security Fundamentals
|
| Topic 5: Network Maintenance and Troubleshooting | - Operations and Maintenance
|
| Topic 6: Switching Technologies | - Link Aggregation
|
| Topic 7: Enterprise Network Architecture and Design | - Network Planning and Design
|
Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:
1. Which of the following OSPF areas needs to reach other areas through the default route?
A) Virtual connection area
B) Backbone area
C) Republish area
D) totally stub area
2. Which of the following description about the optional attributes in BGP is correct? (Multiple choice)
A) In addition to the recognized attributes, each UPDATE message can contain one or more optional attributes. And each BGP Speaker requires support for these optional attributes.
B) The optional transition attribute is that the BGP router can choose whether to carry these attributes in the Update message. If the received router does not recognize this attribute, it can forward it to the neighboring router. The neighbor router may recognize and use this attribute.
C) Optional attributes are divided into optional transitions and optional non-transitions.
D) The optional non-transition attribute is that the BGP router can choose whether to carry this attribute in the Update message. If the received route does not identify this attribute, it will discard this attribute and no longer need to forward it to the neighboring router.
3. Since the AS-PATH attribute cannot be function within the AS, it is specified that the BGP router will not advertise any updates from the IBGP peer to its IBGP peers.
A) True
B) False
4. IPV4 specifies the SSM address range, which of the following options is cortect?
A) 232.1.8.18
B) 232.1.8.1/24
C) 192.1.8.1
D) 225.1.8.18
5. Which of the description of RP In PIM-SM is wrong?
A) All of the group members and the multicast source that sent the multicast data to the group were all converged on the unique RP.
B) RP can be responsible for the forwarding of several or all multicast groups, and there can be an RP in the network.
C) All the multicast streams in the Shared tree are forwarded to the receiver via RP.
D) An RP can serve multiple multicast groups simultaneously, but a multicast group can only correspond to multiple RPS.
Solutions:
| Question # 1 Answer: D | Question # 2 Answer: B,C,D | Question # 3 Answer: A | Question # 4 Answer: A | Question # 5 Answer: D |
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