4A0-115

Review 40 4A0-115 practice questions with answer explanations and community insights.

Question 1

Which of the following statements about the EVPN data plane is FALSE?

  1. EVPN allows a service provider to deliver multiple services over a single core network.
  2. The customer data is encapsulated and then tunneled between the PE routers.
  3. EVPN-MPLS encapsulated data has a label that uniquely identifies each service.
  4. EVPN-MPLS provides services over a simple IP network.

Question 2

Based upon the exhibit, how many MAC-VRFs are there?

  1. 1
  2. 1
  3. 3
  4. 4

Question 3

Which of the following statements about multi-homing for a Layer-2 service is TRUE?

  1. In the single-active mode, the CE requires a LAG to be configured between the CE and all attached PEs.
  2. In the single-active mode, the CE forwards traffic to all attached PEs and receives traffic from a single PE.
  3. In the all-active mode, all PEs attached to a CE can forward traffic to and from the CE.
  4. The Nokia 7750 SR supports a CE being multi-homed to a maximum of two PEs.

Question 4

Which of the following statements about PE-to-PE MAC address advertisement is FALSE?

  1. The service distinguisher (label or VNI) Is advertised with the MAC/IP EVPN update.
  2. Route targets are used to uniquely identify routes between EVIs in the case of MAC address overlaps.
  3. A PE uses a single MP-BGP session with a remote peer to exchange the routes for all EVIs.
  4. A PE advertises locally-learned MAC addresses to remote PEs using EVPN type-2 routes.

Question 5

Which of the following statements about EVPN Layer-3 services that utilize the interface-ful model is TRUE?

  1. EVPN MAC/IP routes are used to advertise the IP prefixes of subnets attached to a VPRN.
  2. VPRN instances are interconnected using a supplementary broadcast domain (SBD) VPLS.
  3. Intra-subnet traffic is carried over the tunnels provided by the SBD VPLS.
  4. The MAC/IP routing Information is used to populate the VPRN routing table at the remote PEs.
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