4A0-D03 Practice Questions

A.  

Leaf-1 generates an IMET route.

B.  

Leaf-1 advertises the IMET route in a BGP EVPN update directly to Leaf-2 and Leaf-3.

C.  

Leaf-2 and Leaf-3 auto-discover the new peer based on the route target in the received IMET route.

D.  

Leaf-2 and Leaf-3 add Leaf-1 to their existing flooding list for BUM traffic.

A.  

When a host connected to a Layer 2 EVPN responds to an ARP request, it sends an ARP reply to the local leaf.

B.  

The local leaf replicates the ARP reply and sends it to all the leafs in the flooding list for that Layer 2 EVPN.

C.  

The local leaf learns the source MAC address from the Ethernet frame and populates it into its MAC forwarding table.

D.  

The local leaf generates an EVPN route type 2 and sends it to all of its configured BGP EVPN neighbors.

A.  

Leaf1

B.  

Leaf2

C.  

Leaf3

D.  

Leaf4

A.  

A sub-interface of lag1 is associated to the MAC-VRF on Leaf1 and Leaf2.

B.  

The Ethernet segment ES-1 is configured with multi-homing-mode all-active.

C.  

The MAC-VRF on Leaf3 will need to be configured with ECMP to be able to load balance between Leaf1 and Leaf2.

D.  

The host will forward all BUM traffic toward the D

F.  

A.  

The Layer 2 EVPN is implemented as a MAC-VR

F.  

B.  

MAC-VRF is configured with a VXLAN-interface towards each remote VTEP.

C.  

Data plane MAC learning takes place on the local interfaces.

D.  

Remote MAC addresses are learned from MP-BGP EVPN updates.

A.  

There are two methods to implement routing between the PE and CE, static and dynamic.

B.  

BGP is the preferred option for PE-CE routing as it scales better than static routing.

C.  

eBGP is preferred which means that the PE and CE are required to be in different autonomous systems.

D.  

The CE advertises BGP EVPN route type 5 updates to the PE and the PE forwards to other PEs.

A.  

The PE advertises IPv4/IPv6 BGP updates to the CE based on the EVPN routes received from other PEs.

B.  

The PE advertises updates received from the CE as EVPN route type 5 updates to the other PEs.

C.  

iBGP is preferred between the CE and PE so that they will be in the same autonomous system.

D.  

The PE and CE can utilize import and export policies to control the updates that are sent and received.

A.  

An IRB interface is used to logically interconnect a MAC-VRF to an IP-VRF on a P

E.  

B.  

IP-VRFs and MAC-VRFs can have multiple IRB interfaces.

C.  

The IRB sub-interface must have at least one IP address.

D.  

The IRB sub-interfaces can be configured with access control lists.

A.  

It is used by the remote peers for aliasing.

B.  

It advertises the multi-homing mode used by the PEs for the Ethernet segment.

C.  

It contains the VNI that is to be used by the remote peers in the data plane.

D.  

It contains the route-target so that the update can be imported into the correct MAC-VRF instance.

A.  

It allows the creation of a Layer 2 overlay network that can span the entire data center.

B.  

VXLAN was developed to support EVPN networks in the data center.

C.  

It may use ECMP to provide efficient utilization of the underlay interfaces within the data center.

D.  

It has the capability to isolate up to 16 million different overlays.