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Huawei H12-221-ENU Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|
| IS-IS Routing Protocol | 18% | - IS-IS basic concepts and network structure
- IS-IS link state database and route calculation
- IS-IS level-1 and level-2 routing
- IS-IS route control and optimization
|
| Switching Technologies | 15% | - RSTP and MSTP protocols
- Eth-Trunk technology and configuration
- Advanced switch features and security
|
| IP Multicast | 10% | - IGMP protocol and operations
- Multicast principles and addresses
- PIM-DM and PIM-SM mechanisms
|
| Routing Control | 13% | - Route redistribution between protocols
- IP prefix list and access control list
- Routing policy and filter policy
|
| OSPF Routing Protocol | 22% | - OSPF basic principles and characteristics
- OSPF area types and LSA types
- OSPF route summarization and filtering
- OSPF neighbor and adjacency establishment
- OSPF special configurations and troubleshooting
|
| BGP Routing Protocol | 22% | - BGP path attributes and route selection rules
- BGP confederation and route reflector
- BGP route policy and filtering
- BGP basic principles and session establishment
|
Huawei HCIP-Routing&Switching-IERS(Huawei Certified ICT Professional-Implementing Enterprise Routing and Switching Network) Sample Questions:
Which of the following description about the optional attributes in BGP is correct? (Multiple choice)
- A. The optional transition attribute is that the BGP router can choose whether to carry these attributes in the Update message. If the received router does not recognize this attribute, it can forward it to the neighboring router. The neighbor router may recognize and use this attribute.
- B. In addition to the recognized attributes, each UPDATE message can contain one or more optional attributes. And each BGP Speaker requires support for these optional attributes.
- C. Optional attributes are divided into optional transitions and optional non-transitions.
- D. The optional non-transition attribute is that the BGP router can choose whether to carry this attribute in the Update message. If the received route does not identify this attribute, it will discard this attribute and no longer need to forward it to the neighboring router.
Reveal Solution
Discussion
The OSPF NBMA network type requires that routers in the network must select DR and BDR; otherwise, they can't work.
Reveal Solution
Discussion
The following is part of the router RTA configuration, for the configuration description of this part, the correct is: (Multiple Choice)
- A. Disable OSPF packet sending on interface gigabitethernet 1/0/0
- B. Cannot form a neighbor relationship with the directly connected neighbor on this interface.
- C. The direct route of interface gigabitethernet 1/0/0 can still be advertised
- D. The interface cannot send HELLO messages
Reveal Solution
Discussion
Correct Answer: A,B,C,D 🗳️
Regarding the description of OSPF external route types, which is wrong?
- A. OSPF is divided into the first type of external routes and the second type of external routes.
- B. The cost of the first external route of OSPF is the sum of the internal cost of AS (the router-to-ASBR overhead) and the AS external cost.
- C. With the same other conditions, the first type of external route of OSPF is always preferred over the second type of external route.
- D. The cost of the second type of OSPF external route is AS external cost.
Reveal Solution
Discussion
The following is part of the output information of the router Huawei. For the output information, which description is wrong?
<Huawei> display pim interface gigabitethernet 1/0/0 verbose
VPN-Instance: public net
Interface: GigabitEthernet1/0/0, 10.1.1.1
PIM version:2
PIM mode: Sparse
PIM state: up
PIM DR: 10.1.1.2
PIM DR Priority (configured): 1
PIM neighbor count:1
PIM hello interval: 30 s
- A. The router gigabitethernet 1/0/0 interface runs PIMv2
- B. The DR on this interface is 10.1.1.1
- C. The PIM status of the gigabitethernet 1/0/0 interface of the router is UP.
- D. PIM-SM running on the gigabitethernet 1/0/0 interface of the router
Reveal Solution
Discussion
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