4.1 Describe VPN Services 350-501 Practice Questions (Page 6)

Questions 26–29

1. 26application · easy

   A service provider is deploying EVPN to provide Layer 2 VPN services to a customer with multiple sites. The provider wants to ensure that MAC addresses learned from one site are advertised to other sites using BGP. Which EVPN route type is used to advertise MAC addresses and their associated IP addresses?

   • ARoute type 5 (IP prefix route)
   • BRoute type 3 (Inclusive multicast Ethernet tag route)
   • CRoute type 2 (MAC/IP advertisement route)
   • DRoute type 1 (Ethernet auto-discovery route)
   Reveal Solution Discussion Select an answer first
2. 27foundation · easy

   Which EVPN mechanism provides fast convergence when a PE device fails in a multihomed setup?

   • AThe use of Route Type 1 (Ethernet A-D) routes to withdraw MAC addresses quickly.
   • BThe use of BFD only on the customer-facing interfaces.
   • CThe use of OSPF fast hello timers to detect PE failure.
   • DThe use of VXLAN multicast groups to detect PE failure.
   Reveal Solution Discussion Select an answer first
4. 28foundation · easy

   Which mVPN profile uses BGP for auto-discovery and PIM for signaling, and is the most commonly used profile?

   • AProfile 0
   • BProfile 1
   • CProfile 2
   • DProfile 3
   Reveal Solution Discussion Select an answer first
5. 29application · medium

   A customer carrier is using Carrier Supporting Carrier (CSC) to offer MPLS VPN services over a supporting carrier's backbone. The customer carrier needs to exchange VPNv4 routes with the supporting carrier. Which protocol is used to exchange these routes between the customer carrier and the supporting carrier?

   • ALDP for label exchange and OSPF for routing
   • BIS-IS with VPN extensions
   • CMP-BGP with VPNv4 address family
   • DPIM for multicast and BGP for unicast
   Reveal Solution Discussion Select an answer first