• Exam Code: H12-221-ENU
  • Exam Name: HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network)
  • Certification Provider: Huawei
  • Corresponding Certification:HCNP-R&S
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H12-221-ENU exam dumps

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  • Exam Code: H12-221-ENU
  • Exam Name: HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network)
  • No. of Questions: 597 Questions and Answers
  • Updated: Nov 05, 2026

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Huawei H12-221-ENU Exam Syllabus Topics:

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

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

Which of the following description of MED is incorrect? (Multiple Choice)

  • A. The default value of MED is 0.
  • B. MED is an optional non-transition property.
  • C. MED can only be transmitted within this AS.
  • D. MED affects the flow from the AS
Reveal Solution  Discussion  0

Correct Answer: A,B  🗳️

BGP and IGP use the same routing table in the setup. In order to implement communication between different AS, BGP needs to interact with the IGP, that is, the BGP routing table and the ICP routing table are introduced to each other.

  • A. FALSE
  • B. TRUE
Reveal Solution  Discussion  0

Correct Answer: A  🗳️

In OSPF, the LSDB overload is usually caused by too many AS external road information (the fifth type of LSA).

  • A. FALSE
  • B. TRUE
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

About the Stub area, full Stub area and NSSA, whichi is correct?

  • A. Stub areas can flood Type 3 and Type 4 LSAs. Full Stub areas cannot flood Type 3 and Type 4 LSAs (except Type 3 LSAs that advertise default routes).
  • B. The biggest difference between a fully stub area and a stub area is that cannot flood the Type 3 LSA.
  • C. The Stub area can only flood Type 3 LSAs, and the full Stub area cannot flood any Type 3 LSA (including the default route LSA).
  • D. Stub area can import AS external routes. The NSSA cannot import AS external routes.
Reveal Solution  Discussion  0

Correct Answer: B  🗳️

In different scenarios, RSTP provides different protection functions, which is wrong? (Multiple choice)

  • A. After the TC-BPDU attack defense function is enabled, the number of times that the switching device processes TC BPDU can be configured.
  • B. After the BPDU guard function is enabled on the switch, if the edge port receives the RST BFDU, the edge port will be set to non-edge port and the spanning tree calculation will be performed again.
  • C. Root protection is configured on the root port.
  • D. Loop protection is effective on the specified port configuration.
Reveal Solution  Discussion  0

Correct Answer: C,D  🗳️

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