LAN mapping table is an attribute of the IST domain and is used to describe the mapping relationship between VLAN and MSTI. Each VLAN can correspond to multiple ISTIs, and one MST can correspond to multiple VLANs.
Correct Answer: A
Question 132
In the BGP protocol, if the preconditions are the same, please sort the following route types according to priority. 1) Manual aggregation 2) Automatic aggregation 3) Network 4) Import
Correct Answer: A,B,C,D
Question 133
Which of the following are the advantages of electing DR/BDR in the MA network? (Multiple choice)
Correct Answer: A,B
Question 134
On an OSPF network, one router with P2P as the network type is directly connected to another router with P2MP as the network type. If the Hello intervals on the two routers are changed to be the same, neighbor relationship establishment and LSDB synchronization are not affected.
Correct Answer: B
The scenario describes a mismatch in OSPF network types between two connected routers: one set to Point-to- Point (P2P) and the other set to Point-to-Multipoint (P2MP). While aligning Hello intervals may seem sufficient for establishing an OSPF neighbor relationship, the fundamental mismatch in network types introduces issues. OSPF Network Types P2P: Assumes a direct connection with a single neighbor, uses faster convergence and simpler LSDB synchronization. P2MP: Supports multiple neighbors on a single interface, requiring different handling for DR/BDR roles and LSDB updates. Impact of Network Type Mismatch If Hello intervals are aligned, adjacency establishment might occur. However, mismatched network types affect neighbor role assignment and LSDB synchronization. P2P expects a direct link and would handle updates differently than P2MP, which assumes multiple neighbors. This leads to inconsistencies in route calculation and forwarding. HCIP-Datacom-Core Reference OSPF Basics and Configurationclearly outlines the criticality of consistent network type configuration for stable OSPF operation. Lab examples in the HCIP Datacom Lab Guidefurther demonstrate the consequences of such mismatches, including unstable neighbor states and incomplete LSDB synchronization. Hence, the statement that neighbor relationships and LSDB synchronization remain unaffected is incorrect. Proper OSPF operation requires matching network types in addition to aligned Hello intervals.
Question 135
Which of the following is the Link ID of the third type LSA?
