Designing Cisco Data Center Infrastructure (DCID) — Question 172

An engineer must design a Cisco UCS environment for a customer. The design requires the most efficient use of available bandwidth with active-active uplinks. The upstream Cisco Nexus 9000 Series Switch must automatically initiate the port-channel connectivity to the fabric interconnects. Which configuration must the engineer choose to meet these requirements?

Answer options

• A. fabric interconnects in Ethernet end-host mode static port-channel from fabric interconnects and Cisco Nexus 9000 switches
• B. fabric interconnects in Ethernet end-host mode LACP port-channel from fabric interconnects and Cisco Nexus 9000 switches
• C. fabric interconnects in Ethernet switching mode LACP port-channel from fabric interconnects and Cisco Nexus 9000 switches
• D. fabric interconnects in Ethernet switching mode static port-channel from fabric interconnects and Cisco Nexus 9000 switches

Correct answer: B

Explanation

The correct answer is B because using LACP (Link Aggregation Control Protocol) allows for dynamic port-channel establishment, which is essential for automatic connectivity with active-active uplinks. The other options either specify static port-channels or incorrect operational modes, which do not support the automatic initiation required for optimal bandwidth utilization.