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Huawei H12-261-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| IPv4 Routing Protocols | 30% | - IS-IS protocol deployment and optimization - BGP route attributes and selection - OSPFv2 principles and advanced configuration - Routing policies and route control |
| MPLS and VPN Technologies | 15% | - MPLS architecture and label switching - MPLS L3VPN and L2VPN - IPsec and VPN security |
| IPv6 and Multicast | 15% | - IGMP and PIM multicast protocols - OSPFv3 and BGP4+ - IPv6 addressing and transition mechanisms |
| Layer 2 Technologies | 20% | - VRRP and BFD - Ethernet and VLAN principles - STP/RSTP/MSTP protocols - Link aggregation and redundancy |
| Network Design, Operation and Troubleshooting | 10% | - Large-scale network architecture design - Network monitoring and management - Fault diagnosis and resolution |
| Network Security and QoS | 10% | - ACL, security policy and AAA - Attack defense and traffic filtering - QoS models, classification and scheduling |
Huawei HCIE-Routing&Switching (Written)(Huawei Certified ICT Expert-Routing & Switching) Sample Questions:
1. Which of the following statements are correct about PPPoE data frames? (Multiple Choice)
A) After the PPPoE session is established, all Ethernet packets are unicast.
B) The Session_ID segment of the ppp session must be the value specified in the Discovery phase and cannot be changed.
C) When PPPoE is used to transfer session data, Code must be set to 0x0.
D) The fixed value of the Ethernet Type field is Ox8863.
2. Which of the following description of the MUX VLAN in the Huawei switch is correct?
A) The MUX VLAN is divided into a Principal VLAN and a Subordinate VLAN. The Subordinate VLAN is further divided into a Separate VLAN and an Isolate VLAN.
B) Principal Port can communicate with all interfaces in the MUX VLAN
C) Each Separate VLAN can be bound to multiple Principal VLANs
D) In the same VLAN, the MUX VLAN can be mixed with the Super VLAN to use.
3. Which of the following statements are NOT true regarding the TCP sliding window? (Multiple Choice)
A) The size of initial window is advertised by the sender.
B) The sender need not transmit a full window's worth of data.
C) If the retransmission timer expires but the sender has not received the acknowledgement, it will retransmit the unacknowledged data.
D) The size of the sliding window can only increase or stay the same.
E) TCP sliding window allows the transmission of multiple frames before waiting for an acknowledgement.
4. Router R1 runs the 0SPF protocol. Use the display ip routing-table command to view the routing table of the Router R1. Which of the following description is correct about the 0SPF information in the routing table?
A) In the routing table, the routing entries identified by the "0_ASE" identifier can only be learned through routing.
B) In the routing table, the routing entry identified by the "0SPF" identifier can only pass the LSA of class 1.
C) In the routing table, the routing entries identified by the OSPF identifier can be learned through 1/2/3/5 LSAs.
D) In the routing table, the routing entries identified by the "0SPF" identifier can only be learned through the Type 3 LSA.
5. In the command aggregate ipv4-address {mask | mask-length} [ as-set | attribute-policy route-policy-name1 | detail-suppressed | origin-policy route-policy-name2 | suppress-policy route-policy-name3], multiple parameters can be used to influence the summary route and its results. What is the correct description about this command?
A) If Attribute-policy is configured, you can change the attributes of the aggregated route.
B) If the Origin-policy is configured, only the detailed routes matching the Route-policy can participate in the aggregation.
C) If the Suppress policy is configured, the aggregated route is generated. The if-match clause of the route-policy is used to select the detailed route to be suppressed. The detailed route matching the route-policy is still advertised to other BGP neighbors.
D) If As-set is configured, AS_ATH of the summary route contains AS path information of all specific routes to prevent routing loops.
Solutions:
| Question # 1 Answer: A,B,C | Question # 2 Answer: B | Question # 3 Answer: A,D | Question # 4 Answer: A | Question # 5 Answer: A,B,D |


