Last Updated: Aug 15, 2026
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| Section | Weight | Objectives |
|---|---|---|
| IS-IS Routing Protocol | 18% | - IS-IS level-1 and level-2 routing - IS-IS basic concepts and network structure - IS-IS route control and optimization - IS-IS link state database and route calculation |
| Routing Control | 13% | - Route redistribution between protocols - IP prefix list and access control list - Routing policy and filter policy |
| BGP Routing Protocol | 22% | - BGP confederation and route reflector - BGP basic principles and session establishment - BGP path attributes and route selection rules - BGP route policy and filtering |
| Switching Technologies | 15% | - RSTP and MSTP protocols - Eth-Trunk technology and configuration - Advanced switch features and security |
| IP Multicast | 10% | - PIM-DM and PIM-SM mechanisms - IGMP protocol and operations - Multicast principles and addresses |
| OSPF Routing Protocol | 22% | - OSPF area types and LSA types - OSPF basic principles and characteristics - OSPF route summarization and filtering - OSPF special configurations and troubleshooting - OSPF neighbor and adjacency establishment |
1. ASBR in the OSPF NSSA area can import external routes to the area. However, the ABR in the NSSA area do not flood the fourth and fifth types of LSA. Instead, the seventh type of LSA is converted into fifth type of LSA flooding to other areas.
A) True
B) False
2. The following is the BGP information output by a router. Which description of this information is wrong?
A) The router ID of this router is 1.1.1.9.
B) The router AS number is 10.
C) display bgp network command displays the routing information advertised by BGP through the network (BGP) command.
D) The router introduced the network segment 4.4.4.0/24 through the import-route command.
3. The correct description of the LSA is:
A) The combination of LS type, LS sequence number and Advertising Router identifies one LSA together.
B) The combination of LS sequence number, Link State ID and Advertising Router identifies one LSA together.
C) The combination of LS type, Link State ID and Advertising Router identifies one LSA together.
D) The combination of LS type, Link State ID and LS sequence number identifies one LSA together.
4. Policy routing requires manual hop-by-hop configuration, to ensure that packets are forwarded by policy.
A) FALSE
B) TRUE
5. PIM-DM does not rely on a specific unicast routing protocol but uses an existing unicast routing table for RFF checking.
A) FALSE
B) TRUE
Solutions:
| Question # 1 Answer: A | Question # 2 Answer: D | Question # 3 Answer: C | Question # 4 Answer: B | Question # 5 Answer: B |
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