Cisco Implementing Cisco Data Center Core Technologies (350-601 DCCOR) 350-601 Question # 8 Topic 1 Discussion
350-601 Exam Topic 1 Question 8 Discussion:
Question #: 8
Topic #: 1
Refer to the exhibit. The gateway of Server 1 is in the VLAN 100 SVI on N5K-1 and the gateway of Server 2 is in the VLAN 200 SVI on N5K-2. Server 1 must connect to Server 2 using unidirectional traffic. Which action accomplishes this requirement?
A.
Add VLAN 100 and 200 to the allowed VLANs list on the Ethernet 1/1 interface on N5K-1.
B.
Assign VRF WEB membership to interfaces VLAN 150 and 200 on N5K-2.
C.
Configure access VLAN 100 on interface Ethernet 1/2 on N5K-2.
D.
Create a static route in VRF WEB for the subnet of Server 2 on N5K-1.
The correct answer is D. From the exhibit, N5K-1 has interface Vlan100 in VRF WEB with IP 10.1.1.1/24 for Server 1’s gateway, and interface Vlan150 in VRF WEB with IP 192.168.1.1/30 toward N5K-2. On N5K-2, interface Vlan200 has IP 172.16.1.1/24 for Server 2’s gateway, and interface Vlan150 has IP 192.168.1.2/30 as the routed transit link back to N5K-1. The exhibit also shows that N5K-2 already has a static route pointing to Server 1’s host/subnet via 192.168.1.1, but N5K-1 only has a route for 172.16.1.0 that is not placed in VRF WEB. Because Server 1’s SVI belongs to VRF WEB, N5K-1 needs a route inside that same VRF toward Server 2’s subnet through 192.168.1.2. Without that VRF-specific route, traffic sourced from Server 1 cannot be forwarded correctly to Server 2. The other options do not solve the Layer 3 reachability problem between the two VRF-connected subnets.
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