When a router forwards packets, it selects the route with the longest prefix match (most specific route) for the destination address.
* First Route : Matches 9.0.0.0/8, which covers all IP addresses starting with 9.
* Second Route : Matches 9.1.0.0/16, which is more specific and covers IP addresses starting with 9.1.
For the destination address 9.1.4.5 , the second route (9.1.0.0/16) is a better match because it is more specific than the first route (9.0.0.0/8).
* Option A : Incorrect. OSPF has a higher priority, but the longest prefix match takes precedence over priority.
* Option B : Correct. The second route matches the destination address more accurately.
* Option C : Incorrect. Metric is not considered when comparing routes with different prefix lengths.
* Option D : Incorrect. Interface speed is irrelevant in route selection.
References:
* HCIA Huawei ACCESS Official Documentation , Chapter: IP Routing Table Selection.
* Routing Principles and Longest Prefix Match by Huawei.

Bridging ONU Configuration:
A bridging ONU acts as a transparent bridge between the PC and the OLT, forwarding traffic without modifying it.
VLAN Configuration for ETH1:
VLAN 1: The default VLAN, often reserved for management purposes. Using it for Internet access is not recommended.
Default Configuration: Leaving the port unconfigured may result in improper VLAN tagging or untagged traffic, leading to connectivity issues.
VLAN 4094: Typically reserved for special purposes (e.g., QinQ termination) and is not suitable for general Internet access.
Native VLAN: Configuring a native VLAN ensures that untagged traffic from the PC is associated with the correct VLAN for Internet access.
Why D?
Configuring a native VLAN is the correct approach to ensure proper VLAN tagging and seamless Internet access for the PC connected to ETH1.
Thus, the correct answer is D.