H12-831_V1.0 Exam Dumps : HCIP-Datacom-Advanced Routing & Switching Technology V1.0

Comprehensive and Detailed In-Depth Explanation:

To determine the correct matches, we need to analyze VLAN aggregation and MUX VLAN behavior in the given topology.

1. Understanding VLAN Aggregation and MUX VLAN Roles

VLAN Aggregation:

Sub-VLANs (e.g., VLAN 10) are part of a Super-VLAN (e.g., VLAN 100) and share a common gateway.

Hosts in the same Sub-VLAN can communicate directly.

MUX VLAN (Multiple User Group VLAN):

Principal VLAN (VLAN 30): Includes servers, accessible by all VLAN types.

Separate VLAN (VLAN 20): Cannot communicate with other Separate VLAN hosts, but can communicate with the Principal VLAN (Server).

Group VLAN (VLAN 10 - Sub-VLANs): Hosts within the same Group VLAN can communicate, and they can also access the Principal VLAN (Server).

2. Analyzing the Connectivity

PC1 (Sub-VLAN 10 - Employee VLAN)

Can communicate with PC2 (same Sub-VLAN).

Can communicate with the Server (VLAN 30 - Principal VLAN).

PC2 (Sub-VLAN 10 - Employee VLAN)

Can communicate with PC1 (same Sub-VLAN).

Can communicate with the Server (VLAN 30 - Principal VLAN).

PC3 (VLAN 20 - Separate VLAN - Guest VLAN)

Cannot communicate with other PCs in Employee VLAN (PC1, PC2) or Guest VLAN (PC4).

Can communicate with the Server (VLAN 30 - Principal VLAN).

PC4 (VLAN 20 - Separate VLAN - Guest VLAN)

Cannot communicate with other PCs in Employee VLAN (PC1, PC2) or Guest VLAN (PC3).

Can communicate with the Server (VLAN 30 - Principal VLAN).

Server (VLAN 30 - Principal VLAN)

Can communicate with all PCs (PC1, PC2, PC3, PC4) because it belongs to the Principal VLAN, which serves all VLANs.

Comprehensive and Detailed In-Depth Explanation:

Understanding the OSPF Network Structure in the Question:

OSPF Areas & Routers:

Area 3: Contains R5 (which has loopback 10.0.5.5/32).

Area 1: Contains R6.

Area 2: Contains R4.

Area 0 (Backbone Area): Contains R1, R2, and R3 (which interconnect the other areas).

ACL 2000 Filtering Rule:

The ACL rule 2000 explicitly denies 10.0.5.5/32 from being imported.

The filter 2000 import command applies this filter to Area 0, preventing routes from Area 3 (including R5's loopback) from being learned by Area 0 routers (R1, R2, and R3).

Route Distribution Analysis:

R5 (Area 3):

R5 has 10.0.5.5/32 configured on its Loopback0.

Since OSPF is enabled, R5 advertises the route to R6 in Area 1.

R6 (Area 1) → R2 (Area 0, Backbone Router):

Without filtering, R6 would normally propagate 10.0.5.5/32 to R2 (since R2 is a backbone router in Area 0).

However, since ACL 2000 is applied in Area 0, R2 blocks this route from being imported.

Therefore, R2 does not learn 10.0.5.5/32.

R2 → R1 and R3 (Both in Area 0):

R2 would typically share any learned routes with R1 and R3 in Area 0.

But since R2 itself does not have 10.0.5.5/32, neither R1 nor R3 can receive it.

Thus, R1 and R3 also do not have 10.0.5.5/32 in their routing tables.

R4 (Area 2) is Unaffected:

Since R4 is in Area 2, it is not directly impacted by the filter applied in Area 0.

It can still receive the route via another path if redistribution is configured properly.

Final Conclusion:

R1, R2, and R3 do not have the 10.0.5.5/32 route due to the filter 2000 import command applied in Area 0.

R4 may still have the route since it is not affected by the filtering in Area 0.

Thus, the correct answer is:✅ R1, R3, R2 do not have the route 10.0.5.5/32 in their routing tables.