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Huawei H12-261_V3.0-ENU Exam Overview:

Certification Vendor:Huawei
Exam Name:HCIE-Routing & Switching (Written) V3.0
Exam Number:H12-261_V3.0-ENU
Available Languages:English, Simplified Chinese, Spanish-Modern, French
Exam Price:300 USD
Related Certifications:HCIP-Routing & Switching
HCIE-Routing & Switching (Lab)
HCIE-Routing & Switching (Interview)
Exam Duration:90 minutes
Passing Score:600 / 1000
Real Exam Qty:60
Certificate Validity Period:Written result: 18 months; Full certification: 2 years
Exam Format:Multiple Choice, Multiple Response, True/False, Fill-in-the-Blank
Recommended Training:HCIE R&S Learning Path
Huawei Official Training
Exam Registration:Huawei Talent Official
Pearson VUE Registration
Sample Questions:Huawei H12-261_V3.0-ENU Sample Questions
Exam Way:Written exam delivered at authorized Pearson VUE test centers
Pre Condition:No mandatory prerequisites; HCIP-Routing & Switching knowledge and 3–5 years of large network experience recommended
Official Syllabus URL:https://e.huawei.com/en/talent/certification/exam/h12-261

Huawei H12-261_V3.0-ENU Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Advanced Technologies & Security20%- Route Control
  • 1. Filter-policy and route-policy
    • 2. Import and export routing control
      - Network Security
      • 1. ACL and traffic filtering
        • 2. DHCP and ARP security
          • 3. URPF and anti-attack technologies
            - High Availability
            • 1. VRRP principles and deployment
              • 2. BFD and link detection
                Topic 2: Network Management & Optimization10%- QoS and traffic scheduling
                - Troubleshooting methodology
                - SNMP and network monitoring
                Topic 3: IPv4 Unicast Routing25%- IS-IS
                • 1. Level-1/Level-2 routing
                  • 2. IS-IS and OSPF comparison
                    • 3. IS-IS protocol mechanism
                      - BGP
                      • 1. BGP route control and filtering
                        • 2. BGP neighbor establishment
                          • 3. BGP attributes and path selection
                            - Routing Basics
                            • 1. Static routing and policy routing
                              • 2. Routing table and forwarding principles
                                - OSPF
                                • 1. OSPF optimization and troubleshooting
                                  • 2. LSA types and area design
                                    • 3. OSPFv2 principles and configuration
                                      Topic 4: Multicast Protocols10%- PIM Protocols
                                      • 1. PIM-DM and PIM-SM
                                        • 2. Rendezvous Point and BSR
                                          • 3. Multicast VPN and reliability
                                            - Multicast Fundamentals
                                            • 1. Multicast address and forwarding
                                              • 2. IGMPv1/v2/v3 and IGMP snooping
                                                Topic 5: Layer 2 Technologies20%- Spanning Tree Protocols
                                                • 1. STP/RSTP/MSTP principles and configuration
                                                  • 2. STP protection mechanisms
                                                    - Ethernet and VLAN
                                                    • 1. VLAN principles and configuration
                                                      • 2. Link aggregation and load balancing
                                                        • 3. QinQ and VLAN mapping
                                                          - High Reliability Technologies
                                                          • 1. Smart Link and Monitor Link
                                                            • 2. RRPP and ERPS
                                                              Topic 6: IPv6 Technologies15%- IPv6 Basics
                                                              • 1. IPv6 address structure and types
                                                                • 2. ICMPv6 and neighbor discovery
                                                                  - IPv6 Routing Protocols
                                                                  • 1. BGP4+ and IPv6 interworking
                                                                    • 2. OSPFv3 and IS-IS for IPv6
                                                                      - IPv6 Transition
                                                                      • 1. NAT64 and DNS64
                                                                        • 2. Dual-stack and tunneling technologies

                                                                          Huawei HCIE-Routing & Switching (Written) V3.0 Sample Questions:

                                                                          1. RTA is the source DR router and RTB is the RP router. The multicast source sends multicast data to RTA, but the multicast source Source registered to it through the PIM Register message cannot be seen on RTB. What are the possible reasons? (Multiple questions)

                                                                          A) The multicast network dynamically elects the RP, but the RTA's RPF check on the BSR fails
                                                                          B) There is no unicast route from RTB to RTA, causing RTB to fail to check the source RPF
                                                                          C) The multicast network is statically configured with RP, but the RTA router is not statically configured with RP
                                                                          D) The RP elected by RTA is not RTB


                                                                          2. Intranet users of a certain company use NAT's No-pat method to access the Internet. If all public IP addresses are used, what will happen to intranet users who subsequently go online?

                                                                          A) Squeeze out the previous user and force NAT to switch the Internet
                                                                          B) Synchronize packets to other NAT translation devices for NAT translation
                                                                          C) Subsequent intranet users will not be able to access the Internet
                                                                          D) Automatically switch NAT to PAT and then surf the Internet


                                                                          3. Regarding the description of the label encapsulation format in MPLS, which is correct? (Multiple questions)

                                                                          A) The TTL field in the label is similar to the TTL (Time To Live) in the IP packet, and it also has the effect of preventing loops.
                                                                          B) The S field in the label, 1bit is used to identify whether the label is the bottom label of the stack, when the value is 1, it indicates the second-to-last label
                                                                          C) For Ethernet and PPP packets, the label stack is like a "cushion", located between the Layer 2 header and the data. When there is a VLAN tag, the MPLS header is placed between the Ethernet header and the VLAN tag.
                                                                          D) The total length of a single MPLS label is 4 bytes (32 bits)


                                                                          4. Two routers are connected through the serial port, but the interconnect interface cannot be pinged.
                                                                          Now check the port status as follows:

                                                                          From the above information can determine what is the reason?

                                                                          A) Link bandwidth is not enough
                                                                          B) Link layer protocol is inconsistent
                                                                          C) The IP address is not on the same network segment.
                                                                          D) Subnet mask does not match


                                                                          5. When a Layer 3 switch sends an IP packet originating from one VLAN to another LAN, which field in the following options will be written from?

                                                                          A) Three-layer TTL
                                                                          B) Layer 2 TTL
                                                                          C) Three-layer transmission protocol
                                                                          D) Layer 3 source address
                                                                          E) Layer 3 destination address


                                                                          Solutions:

                                                                          Question # 1
                                                                          Answer: A,B,C,D
                                                                          Question # 2
                                                                          Answer: C
                                                                          Question # 3
                                                                          Answer: A,D
                                                                          Question # 4
                                                                          Answer: B
                                                                          Question # 5
                                                                          Answer: A

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