Try Huawei : H12-221-ENU valid & accurate questions and answers

Last Updated: Nov 05, 2026

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Tight on study time? Exams-boost condenses the Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) objectives into 597 focused practice questions, so the hours you have in 2026 actually count. Work through them at your own pace and walk into the H12-221-ENU exam with a plan.

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:Portuguese, French, Chinese Simplified, English, Russian, Spanish
Exam Format:Single Choice, Drag and Drop, True/False, Multiple Choice
Exam Price:USD 160
Certificate Validity Period:3 Years
Related Certifications:HCIP-Routing & Switching
Exam Duration:90 minutes
Passing Score:600/1000
Sample Questions: DOWNLOAD DEMO
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:

SectionObjectives
Topic 1: IP Multicast- Multicast Technologies
  • 1. Multicast Routing
  • 2. PIM
  • 3. IGMP
Topic 2: IPv6 Technologies- IPv6 Fundamentals
  • 1. IPv6 Addressing
  • 2. IPv6 Routing
Topic 3: Enterprise Network Architecture and Design- Enterprise Network Architecture
  • 1. Data Center Network Architecture
  • 2. Campus Network Architecture
  • 3. WAN Architecture
- Network Planning and Design
  • 1. IP Address Planning
  • 2. VLAN Planning
  • 3. Routing Design
Topic 4: Routing Technologies- OSPF
  • 1. OSPF Fundamentals
  • 2. Route Optimization
  • 3. Area Design
- IS-IS
  • 1. IS-IS Deployment
  • 2. IS-IS Fundamentals
- BGP
  • 1. Route Attributes
  • 2. BGP Fundamentals
  • 3. Route Control
Topic 5: Network Maintenance and Troubleshooting- Operations and Maintenance
  • 1. Fault Diagnosis
  • 2. Network Optimization
  • 3. Performance Monitoring
Topic 6: Network Security- Security Fundamentals
  • 1. AAA
  • 2. Device Security
  • 3. ACL
Topic 7: Switching Technologies- VLAN Technologies
  • 1. VLAN Configuration
  • 2. VLAN Principles
  • 3. Inter-VLAN Communication
- Link Aggregation
  • 1. LACP
  • 2. Eth-Trunk Principles
- STP Technologies
  • 1. STP
  • 2. MSTP
  • 3. RSTP

Your Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Questions, Answered

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The H12-221-ENU exam — officially titled HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) — is the Huawei test you pass to earn the HCNP-R&S certification. It sits at the Professional level of the Huawei certification program. Related certifications include HCIP-Routing & Switching. If that is the credential you are after, the 597 practice questions at Exams-boost map directly to its official objectives.

The Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) blueprint is organized into 7 domains. The first three are:

  • Switching Technologies
  • IPv6 Technologies
  • Routing Technologies

The complete, current topic list appears in the exam outline section above — review it before you start drilling the Exams-boost practice questions.

Huawei recommends HCIA-Routing & Switching level knowledge or equivalent networking experience.

Eligibility rules do change, so confirm the current requirements on the official exam page before you apply: https://support.huawei.com/learning/.

If you take the corresponding H12-221-ENU exam within 60 days of purchase and do not pass, you can apply for a full refund under our money-back guarantee. Send a scanned copy of your exam enrollment slip together with the official Score Report PDF within 2 days of your exam date, and your claim will be processed within 7 days. Keep in mind that the candidate name must match the purchaser name, and the guarantee does not cover attempts made within 3 days of purchase, materials that were downloaded but never used in an actual exam sitting, free resources, or expired orders. If you would rather keep studying, you can swap the refund for two free exam products of equal value while keeping the update service on your original purchase. Delivery itself is instant: the files are emailed to you within one minute of payment (if nothing arrives within 2 hours, check your spam folder and contact our support team), and there is no limit on how many computers you install them on.

The passing score for the H12-221-ENU exam is 600/1000, and the official registration fee is USD 160. Remember that an unsuccessful attempt means paying the full USD 160 again to retake it, so booking too early is the expensive way to find out you are not ready. Test yourself with the Exams-boost practice questions first; once you can clear 600/1000 comfortably on timed runs, scheduling the real exam becomes a much safer bet.

Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:

Question #1

The following is a router BGPFALSE output information, which description of this information is incorrect?

  • A. The router neighbor address is 10.1.1.5.
  • B. The Error Type is displayed due to wrong neighbor relationship.
  • C. The cause of error may be due to the neighbor address error.
  • D. Error occurred at 12:90:39 on March 22, 2010.
Reveal Solution  Discussion  0

Correct Answer: C  🗳️

Question #2

Which of the following description about OSPF is correct?

  • A. OSPF updates regularly every 30 minutes
  • B. OSPF uses the Bellman-Ford algorithm, and each router runs the algorithm independently.
  • C. OSPF itself does not have a certain mechanism, so OSPF relies on the upper layer protocol, that is TCP, to confirm and process.
  • D. OSPF floods an LSU every 5s
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #3

IPV4 specifies the address range of SSM, which of the following options is correct?

  • A. 232.1.8.1/8
  • B. 225.1.8.1/8
  • C. 232.1.8.1/24
  • D. 192.1.8.1
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

Question #4

About this section configuration, which of the following descriptions are correct? (Multiple choice)

  • A. region-name RegionA command configures the MST region name of the switch. By default, the MST region name of the switch is the MAC address of the switch.
  • B. Use the instance 2 vlan 3 command is used to map VLAN 3 to MST Instance 2. All the default VLANs are mapped to Instance 1.
  • C. stp mode mstp command is used to enable the MSTP feature of the switch. By default, MSTP is switched on.
  • D. The active region-configuration command is used to activate the configuration of the MST region. If you do not perform this operation, the configured domain name, VLAN mapping table, and MSTP revision level do not take effect.
  • E. The revision-level 1 is used to configure the MSTP revision level. The value range is 0 to 65535. By default, the MSTP revision level is 1.
Reveal Solution  Discussion  0

Correct Answer: A,C,D  🗳️

Question #5

Run MSTP on the network. When you view the configuration on the root switch of an MSTP domain, the following command is obtained. As shown in the figure, please estimate the network size of the MSTP domain where the root switch resides.
[SWA]display stp
------- [CIST Global Info] [Mode MSTP] ------
CIST Bridge: 0.000f-e212-f8e1
Bridge Times: Hello 2s MaxAge 20s FWDly 15s MaxHop 30
CIST Root/ERPC: 0.000f-e212-f8e1/0
CIST RegRoot/IRPC: 0.000f-e212-f8e1/0
CIST RootPortId: 0.0
BPDU-Protection: disabled
CIST Root Type: PRIMARY root
TC or TCN received :3
Time since last TC: 0 days 1h:23m:36s

  • A. Less than 10 units
  • B. Less than 30 units
  • C. Less than 20 units
  • D. Less than 40 units
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

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