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Updated: Sep 01, 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 |
| Related Certifications: | HCIP-Routing & Switching |
| Exam Price: | USD 160 |
| Certificate Validity Period: | 3 Years |
| Passing Score: | 600/1000 |
| Available Languages: | Spanish, French, Chinese Simplified, Portuguese, English, Russian |
| Exam Duration: | 90 minutes |
| Exam Format: | Drag and Drop, Multiple Choice, True/False, Single Choice |
| 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 |
|---|---|
| Switching Technologies | - STP Technologies
|
| IPv6 Technologies | - IPv6 Fundamentals
|
| Network Security | - Security Fundamentals
|
| Enterprise Network Architecture and Design | - Network Planning and Design
|
| IP Multicast | - Multicast Technologies
|
| Network Maintenance and Troubleshooting | - Operations and Maintenance
|
| Routing Technologies | - IS-IS
|
Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:
Question 1
The following is a partial configuration command of the Huawei router. Which description of this configuration is incorrect?
A. The specified introduced RIP route is a Type 2 external route.
B. The specified introduced RIP routing route is marked as 33.
C. The specified introduced RIP route metric as 50.
D. The router OSPF process number is 40.
Question 2
The above is part of the information output by the router Huawei. The following description which is wrong?
A. Use display pim rp-info command to check the RP information corresponding to the multicast group.
B. The group address is 225.0.0.0.
C. The RP address is 2.2.2.2.
D. The priority of the RP is 0.
Question 3
A route-policy can have multiple nodes. Different node numbers are identified by sec-number. The relationship between different parts of different seq-numbers is OR.
A. False
B. True
Question 4
Which of the following statement about the OSPF protocol is correct? (Multiple choice)
A. The OSPF default bandwidth reference is 100 Mbit/s.
B. A broadcast network segment or NBMA network segment with at least two routers is a Transit network segment.
C. The cost of a router from a Transit segment to the network segment is 100.
D. There are three types of endpoints in the OSPF topology: router nodes, stub network segments, and transit network segments.
Question 5
Which of the following statements are wrong about multicast MAC addresses? (Multiple Choice)
A. Multiple multicast MAC addresses correspond to 32 IP multicast addresses
B. The role of the multicast MC address is to identify the receivers belonging to the same multicast group on the link layer.
C. The high 24 of the multicast NAC address is 00050, the 25th bit is fixed, and the lower 23 of the MAC address is the lower 23b of the multicast P address.
D. One multicast MAC address uniquely corresponds to one IP multicast address
Solutions:
| Question 1 Answer: D | Question 2 Answer: B | Question 3 Answer: B | Question 4 Answer: A,B,D | Question 5 Answer: C,D |
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