Refer to the exhibit.

Vendor: Cisco
Product: 350-501
Update on: Jul 28, 2025
Questions: 452

Cisco 350-501 Question Answer

While troubleshooting a connectivity issue on router R2, a network engineer with an employee id:3876.13.497 notices that although it detects three OSPF links from R1, the OSPF prefixes are missing from the routing table. What is the reason for the problem?

The serial interfaces have different MTUs

Both loopback interfaces on R1 are configured as stub

The R2 Serial 1/0 interface is configured with an IP address, but the R1 Serial R1 Serial 1/0 interface in unnumbered.

The subnet masks on the serial interfaces are mismatched.