Free Nokia SR Linux EVPN and Data Center Interconnect Practice Questions

A.  

The IRB sub-interface must be configured as either type bridge or routed.

B.  

A MAC-VRF can be configured with multiple IRB sub-interfaces to support multi-homing.

C.  

When the IRB sub-interface is configured with multiple IP addresses, one of them can be configured as the primary.

D.  

When using an IRB interface to interconnect a MAC-VRF to an IP-VRF, one sub-interface is configured for the MAC-VRF and another one for the IP-VR

F.  

A.  

Allows the other PEs to discover which PEs are connected to the same Ethernet segment.

B.  

Triggers the election of a designated forwarder.

C.  

Identifies the type of algorithm to be used in the election process.

D.  

Identifies the redundancy mode of the Ethernet segment.

A.  

It contains the VNI information that is to be used in the data plane.

B.  

It contains the multi-homing type used for the Ethernet segment.

C.  

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

D.  

A PE will advertise one AD per EVI update for each MAC-VRF associated to the Ethernet segment.

A.  

One of the leaf routers will be elected D

F.  

B.  

All connected leaf routers will use single active redundancy.

C.  

The AD per EVI update will be used to identify which connected leaf is primary.

D.  

All traffic destined to 40.40.40.0/24 will be forwarded through Leaf3 due to the BGP connection to the CE VN

F.  

A.  

The Ethernet segment ES-1 is configured as single active.

B.  

The ports that connect to the host are associated to ES-1.

C.  

All traffic to and from the host will flow through Leaf1.

D.  

The host will be required to be configured with a LA

G.  

A.  

The original PE advertises the locally learned MAC with the sequence number set to a maximum value.

B.  

A PE advertising a local MAC that was previously learned through EVPN, will decrement the sequence number in its update.

C.  

The originating PE generates a withdraw message after the same locally learned MAC has aged out.

D.  

The originating PE and the destination PE must synchronize their MAC tables.

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 MAC-VRF on Leaf1 and Leaf2 is configured with multi-homing-mode all-active.

B.  

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

C.  

The host will be required to be configured with a LA

G.  

D.  

The Ethernet segment ES-1 will be associated to the ports that connect to the host.

A.  

Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 0.0.0.0 to the remote peers.

B.  

Leaf-1 sends a route-type 2 EVPN update with host-1's MAC with the IP address set to 192.168.100.1 to the remote peers.

C.  

The remote peers ignore the EVPN update with the IP address set to 0.0.0.0 and use the update with the IP address set to 192.168.100.1 to populate their MAC forwarding tables.

D.  

The remote peers generate a gratuitous ARP towards their directly connected hosts to announce the learned IP/MAC mapping information.

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.