4A0-104 Nokia Services Architecture Questions and Answers

A-pipe

F-pipe

C-pipe

E-pipe

3

4

6

12

5000

5004

5008

5018

All services bound to the same SDP must be the same service type.

All services bound to the same SDP will have the same transport encapsulation.

Any operation on an SDP will affect all services bound to that SDP.

An SDP is used to direct traffic for a service from one router to another.

2

12

30

44

100

The VC ID Cannot be determined from the output

family ipv4 ipv6

family vpn-ipv4ipv6

family vpn-ipv4 vpn-ipv6

family ipv6 vpn-ipv6

They are signaled between PE devices using MP-BGP.

They are swapped at each P router as a packet crosses the service provider network.

They are also known as the inner label or service label.

They indicate to the egress PE the VPRN to which a packet belongs.

Sdp-ping

Isp-ping

Svc-ping

Sdp-mtu

Set the service MTU of the VPLS to match the IES MTU.

Set the ip-mtu of the IES to match the service MTU of the VPLS.

Set the SDP MTU of the IES to match the SDP MTU of the VPLS.

Set the MTU of the IES's network port to match the service MTU of the VPLS.

A data packet will receive a service label at the CE and a transport label at the ingress PE.

A data packet intended for a remote CE will have its service label swapped at each P router along the path towards the egress PE.

At the egress PE, the transport label will be popped and the data packet forwarded with the service label.

The service label is popped by the remote CE. The unlabeled packet is forwarded based on the longest match lookup algorithm in the VRF.

All of the above statements are false.

All of the above statements are true.

A mirror destination on the local and remote Alcatel-Lucent Service Router,

A mirror source on the local and remote Alcatel-Lucent Service Router.

A mirror source with the remote source specified on the remote Alcatel-Lucent Service Router.

A mirror source with the remote source specified on the local Alcatel-Lucent Service Router.

An SDP between the local and remote Alcatel-Lucent Service Routers.

An echo request is sent based on the LSP's label stack.

Echo reply packets may not take the same path as the LSP.

The IP destination address is used to initiate echo requests,

The test fails if the LSP is not operationally up.

0

1

2

3

Service tunnels are unidirectional.

Transport tunnels are unidirectional.

A service will use the same service label for every hop.

A local service requires a transport tunnel.

They reduce the number of SDPs that need to be configured.

They can be used to work around physical topologies that prevent a fully meshed deployment.

They prevent loops that can be introduced by mesh deployments.

They can simplify the implementation of security policy enforcement and packet inspection.

LDP

BGP

MP-BGP

MPLS

A route target is a BGP extended community used to identify the VRF table for a prefix at the receiving PE

A route target is a mechanism from which VPRN controls the distribution of VPN routing information.

Route target attributes are earned in a MP-BGP as attributes of the route.

A route target is used by the PE router to identify the VRF that a VPN-lPv4 prefix is associated with.

All of the above statements describe a route target

None of the above statements describe a route target

An OSPF adjacency can be established on an IES interface.

IES allows provider MP-BGP sessions to be extended to customers.

An IES service must use static routes in order to communicate with customer networks.

An IES interface supports OSPF and IS-IS in passive mode only.

Traffic is flooded to all SAPs in the service.

Traffic is flooded to all SAPs and spoke SDPs in the service.

Traffic is flooded to all SAPs and mesh SDPs in the service.

Traffic is flooded to all SAPs, spoke SDPs, and mesh SDPs in the service

The traffic is not flooded.

config>router#

config>qos#

config>port#

config>service#

configure service sdp sdp-id gre create

configure service sdp sdp-id create

Idp

Isp Isp-name

The outer label allows traffic to transit across the MPLS network.

The inner label identifies the VPRN service.

MP-BGP is used to signal VPRN labels.

The VPRN service label contains the customer's IP address.

MP-BGP in the provider network needs to support the VPN-IPv6 address family.

PE routers must be configured to run MP-BGP.

PE-to-CE BGP sessions need to be configured to support IPv6.

The provider network core must be configured to support IPv6.

SDP ID

Service ID

Customer ID

SAP ID

Option A

Option B

Option C

Option D

Option A

Option B

Option C

Option D

Option A

Option B

Option C

Option D

The service takes a route determined by the IGP.

The tunnel does not use a service label.

The service label is swapped at each hop in the transport network.

The tunnel is bidirectional and only requires configuration at one end of the service.

A VPLS service does not use a MAC FDB.

A single MAC FDB is shared by all VPLS services on a PE.

A separate MAC FDB is used on the PE for each VPLS service.

Each VPLS service uses a separate MAC FDBs for unicast and multicast traffic.

Yes, A routing policy is required to advertise routes between PE routers in a VPRN regardless of the CE-PE routing.

Yes, A routing policy is required in this case because BGP is used as the PE-CE routing protocol.

No, a routing policy is not required. By default, the Alcatel-Lucent 7750 SR will advertise all VPRN routes between PE routers.

No, a routing policy is not required on PE1, but an import policy is required on PE2.

A CE router.

A P router.

A PE router.

Both P and PE routers.

config>service# epipe service-id enable

config>service# vpws service-id enable

config>service# service-id no shutdown

config>port# port-id no shutdown

config>service# epipe service-id no shutdown

Path MTU is always calculated from the MTU of the egress network port on the head end PE.

oam sdp-mtu

adspec

cspf

sap 1/1/1

sap 1/1/1:*

sap 1/1/1:*.0

sap 1/1/1:0*

sap 1/1/1:200.*

sap 1/1/1:300:200

SDPs are a logical way to direct traffic from one router to another.

SDPs are a logical way to direct traffic between services.

SDP IDs are locally unique.

SDP IDs must be unique across the network.

SDPs are specific to one service type

SDPs must use MPLS for their encapsulation

Route distinguishes are 12 bytes in length

Route distinguishes are appended to IPv4 prefixes to form 16 byte VPN-IFV1 prefixes.

Route distinguishes are used to determine which routes a VPRN should import.

CE routes must be configured with the proper route distinguishes for the VPRN they are associated to

All of the above statements are true.

All of the above statements are false.

configure router sdp sdp-id

configure service sdp sdp-id create

configure service mpls sdp sdp-id create

configure service gre sdp sdp-id create

configure service sdp sdp-id mpls create

An SDP does not have a path-mtu

The path-mtu must be set by the administrator.

By default, the path-mtu is calculated automatically from the network port MTU of the PE router.

The path-mtu is calculated based on the service MTU of the service using the SDP.

The path-mtu is signaled between the PE endpoints when the service is established.

Layer 3 direct Internet access service.

Layer 2 point-to-point service.

Layer 2 multipoint-to-multipoint service.

Layer 3 IP multipoint-to-multipoint VPN service.

6VPE is a tunneling technology that makes use of MPLS tunnels to transport IPv6 information over an IPv4 MPLS infrastructure.

Customers connected to 6VPE could run native IPv6 or IPv4.

On the PE router, the next hop for a VPN IPv6 address is an IPv6 address, regardless of the nature of the network between the PEs.

6VPE requires an IPv6-aware MPLS core.

Both C and D are false.

All of the above statements are true.