4A0-D03: Nokia SR Linux EVPN and Data Center InterconnectDemo

By Nokia · Question Mode

QuestionQ51

DCI And 7750 SR interoperability

Which statement about the gateway-less data center interconnect solution is FALSE?

  • A It provides a clear demarcation for security between the border leaf and gateway.
  • B All of the data centers leaf routers must be reachable over the WAN network.
  • C The route reflectors must be reachable between different data centers.
  • D The data center border leaf and gateway can use either eBGP or static routes to exchange routing information.
Explanation

A gateway-less data center interconnect design has the border leaf itself perform interconnection with border leafs in other data centers directly, eliminating the separate DCI gateway device found in gateway-based designs. Because that intermediary function is removed, there is no distinct security or administrative demarcation point separating a border-leaf role from a gateway role in this architecture; that clear demarcation only exists in the alternative design that retains dedicated gateway routers. The remaining statements correctly describe gateway-less DCI requirements: leaf/border-leaf routers across data centers must be reachable over the WAN, route reflectors must be reachable between data centers for control-plane peering, and either eBGP or static routes can be used to exchange the underlay routing information needed to reach remote border leafs.

Community Discussion

No comments yet. Be the first to start the discussion!