Cisco 650-987 Exam

Which two adapter cards are supported by Cisco UCS B-Series Rack-Mount Servers? (Choose two.)

  • A. Fire wire
  • B. Ethernet
  • C. HDMI
  • D. Wireless
  • E. CNA
  • F. USB
  • G. VIC
Answer: Option B. G.
Explanation: 

Cisco offers two Converged Network Adapters (CNA). These are called converged because they contains both an application-specific integrated circuit (ASIC) for Fibre Channel and an ASIC for Data Center Ethernet as well as a third ASIC onboard, called the Menlo ASIC. The Menlo ASIC combines Fibre Channel and Ethernet communication into 10 Gigabit Ethernet. Cisco uses cards manufactured by both Emulex (called the UCS CNA M71KR-E ) and QLogic (called the UCS CNA M71KR-Q). These CNAs cost more than the UCS 82598KR-CI, but you don’t have to worry about using an OS with the FCoE stack; all you need are the appropriate drivers. The CNAs are called the “Compatibility” adapter in this slide because it has a Fibre Channel chip and a Data Center Ethernet chip on it, along with the Menlo chip that combines the two.
The UCS CNA M71KR is a virtual interface card (VIC). It differentiates itself from UCS 82598KR-CI and the two CNAs in that it can create what appears to the OS as hardware Host Bus Adapters (HBAs) and Ethernet. It is a virtualized network adapter. Whereas the CNAs limit you to two Ethernet uplinks and two HBA uplinks, the VIC can create up to 128 virtual NICs. A customer could easily create a bladed server that looks like it has 40 separate Ethernet or Fibre Channel cards in it, and of course that configuration requires reduced wiring and far less power. The VIC is cutting-edge technology, and ergo is the most expensive of the three options.
The UCS M81KR Virtual Interface Controller (VIC) for the UCS blade series has now been complemented by the UCS P81E Virtual Interface Card for use with Cisco UCS C-Series Rack-Mount Servers.

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