Free Nokia Ethernet Virtual Private Network Services Exam 4A0-115 Exam Practice Test

Which of the following statements about EVPN auto-discovery per EVPN instance (A-D per EVI) routes is FALSE?

• A PE uses the received updates to create aliasing lists to PES that are part of an all-active Ethernet segment.
• A PE advertises an A-D per EVI route for each operational service defined on an Ethernet segment.
• The updates include an Ethernet tag ID that is set to zero.
• The updates are used to discover all the PES associated with an Ethernet segment.

What are EVPN inclusive multicast Ethernet tag (IMET) routes used for?

• To advertise the MAC or MAC/IP addresses of locally-learned hosts
• To advertise the redundancy mode of a local Ethernet segment
• To discover all PES participating in the same VPIS service
• To discover all PES attached to the same Ethernet segment

Which of the following statements about EVPN auto-discovery per Ethernet segment (A-D per ES) routes is TRUE?

• The updates include an Ethernet segment identifier label that is used in loop prevention.
• The updates advertise the Ethernet segment availability in a given EVPN service.
• The updates include an MPLS label that is set to a non-zero value.
• The updates include an Ethernet tag ID that is set to zero.

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

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

Which of the following statements about an EVPN with integrated routing and bridging (EVPN-IRB) service is FALSE?

• This service requires the use of EVPN-MPLS for data plane.
• In this service, the IRB interface acts as a default gateway for hosts in the corresponding subnet.
• This service consists of a VPRN and multiple VPLSs.
• This service enables the use of EVPN to provide connectivity between hosts in different subnets.

An operator configures an EVPN-IRB that uses the interface-ful unnumbered forwarding model on a Nokia 7750 service router. Which of the following statements regarding the configuration performed on each participating PE is FALSE?

• A supplementary broadcast domain (SBD) is configured as a routed VPLS.
• A VPRN service is configured and has an interface bound to the local VPLS.
• The advertisement of IP-Prefix routes is enabled in the SBD VPLS.
• An IP address is configured in the VPRN interface that is bound to the SBD VPLS.

Which of the following statements about the operation of a single-homed EVPN VPWS is TRUE?

• The same tag ID must be configured for the local attachment circuit (AC) at each PE.
• Each PE advertises a MAC route and an A-D per EVI route when its local AC becomes operationally UP.
• The advertised A-D per EVI route includes a non-zero tag ID and a non-zero MPLS label.
• Each PE verifies that the received tag ID matches its configured local AC tag ID.

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

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

Which of the following statements about the EVPN Layer 2 Attributes extended community is FALSE?

• It is advertised with the auto-discovery per EVPN instance (A-D per EVI) route.
• It is applicable to EVPN VPLS services.
• It specifies the service maximum transmission unit (MTU).
• It specifies a P flag that indicates whether the advertising PE is a primary PE.

Which of the following statements about the EVPN route types used to support multi-homing is TRUE?

• Ethernet segment (ES) routes indicate the redundancy mode of the Ethernet segment.
• ES routes provide the ESI label required to support the split-horizon mechanism.
• Auto-discovery (A-D) routes are imported by all PES participating in the EVPN service.
• A-D per Ethernet segment routes indicate the desired designated forwarder election algorithm.