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Nokia Services Architecture Question and Answers

Nokia Services Architecture

Last Update May 11, 2024
Total Questions : 288

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Questions 1

Which of the following describes a service on the Alcatel-Lucent 7750 SR?

Options:

A.  

A logical entity that provides a uniform, end-to-end configuration, management and billing model for provisioning either Internet or VPN connectivity.

B.  

Provides connectivity between customer access points.

C.  

A service that can either be local or distributed.

D.  

All of the above

Discussion 0
Questions 2

Which of the following commands is used to enable an Epipe service?

Options:

A.  

config>service# epipe service-id enable

B.  

config>service# vpws service-id enable

C.  

config>service# service-id no shutdown

D.  

config>port# port-id no shutdown

E.  

config>service# epipe service-id no shutdown

Discussion 0
Questions 3

Which of the following commands is used to configure a new MPLS SDP?

Options:

A.  

configure router sdp sdp-id

B.  

configure service sdp sdp-id create

C.  

configure service mpls sdp sdp-id create

D.  

configure service gre sdp sdp-id create

E.  

configure service sdp sdp-id mpls create

Discussion 0
Questions 4

Which of the following conditions are necessary in order for service labels to be signaled between two PE routers? (Choose 3)

Options:

A.  

LDP must be enabled on both PE routers.

B.  

RSVP must be enabled on both PE routers.

C.  

Traffic engineering must be enabled in the IGP.

D.  

The VC-ID must match between the two PE routers in both directions.

E.  

The transport tunnel must be operationally up between the two PE routers in both directions.

F.  

The SDP ID must match between the two PE routers in both directions.

Discussion 0
Questions 5

A service provider wishes to configure a Layer 2 service that will forward customer VLAN tags. When configuring an SDP for the service, which vc-type will forward service delimiting tags on the ingress PE?

Options:

A.  

vc-type ether

B.  

vc-type vlan

C.  

vc-type dot1q

D.  

vc-type null

Discussion 0
Questions 6

Which of the following is NOT a service offered on the Alcatel-Lucent 7750 SR?

Options:

A.  

IES

B.  

VPWS

C.  

VPLS

D.  

VPRN

E.  

L2TP

Discussion 0
Questions 7

Which protocol is used to signal the outer label for a VPN service?

Options:

A.  

RSVP

B.  

IPCP

C.  

TLDP

D.  

PPP

E.  

Either RSVP or LDP

Discussion 0
Questions 8

When configuring distributed services across a network, it is considered best practice to configure which of the following parameters as globally significant? (Choose 2)

Options:

A.  

SDP ID

B.  

Service ID

C.  

Customer ID

D.  

SAP ID

Discussion 0
Questions 9

Which of the following commands is required to configure an Ethernet port to be used as a SAP in a service?

Options:

A.  

Configure service sap sap-id access

B.  

Configure port port-idEthernetmode access

C.  

Configure port port-idEthernetmode network

D.  

Configure port port-id mode access

E.  

Configure port port-id mode network

Discussion 0
Questions 10

Which of the following best describes a distributed Epipe Service?

Options:

A.  

An Epipe that has 2 or more SDPs configured.

B.  

An Epipe that has 3 or more SAPs configured.

C.  

An Epipe that has 2 SAPs on the same node but no SDPs configured

D.  

An Epipe that is configured between two nodes, each having 1 SAP and 1 SDP configured.

Discussion 0
Questions 11

Which of the following statements best describes the flooding of traffic on a PE when traffic is received on a SAP?

Options:

A.  

Traffic is flooded to all SAPs in the service.

B.  

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

C.  

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

D.  

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

E.  

The traffic is not flooded.

Discussion 0
Questions 12

Click on the exhibit button below.

If CE1 and PE1 use BGP to exchange routing information and CE2 and PE2 use static routing to forward traffic to and from the VPRN, which of the following statements is considered TRUE?

Options:

A.  

An export policy is required on PE1 to advertise routes to CE1.

B.  

An export policy is not required on PE2 to advertise routes to CE2.

C.  

An export policy is not required to advertise routes between PE routers

D.  

All of the above statements are true

E.  

All of the above statements are false

Discussion 0
Questions 13

How many SAPs can be configured on a port configured with NULL encapsulation?

Options:

A.  

1

B.  

4096

C.  

None. This encapsulation is not supported.

D.  

The number is limited only by the capacity of the router

Discussion 0
Questions 14

Which VPWS service would be used to create a point-to-point Frame Relay service?

Options:

A.  

Epipe

B.  

Apipe

C.  

Fpipe

D.  

Ipipe

E.  

Cpipe

Discussion 0
Questions 15

An operator needs to provision 6VPE on a 7750 SR that is also used to provide existing IPv4 VPRN services. IPv6 VPRN customers use BGP as a PE-CE protocol. Which of the following statements is FALSE regarding the configuration steps required?

Options:

A.  

MP-BGP sessions need to be configured in the service provider network to support a VPN-IPv6 address family.

B.  

PE routers must be configured to run MP-BGP and IPv6

C.  

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

D.  

The provider core must be configured to support IPv6

E.  

None of the above statements are false.

F.  

All of the above statements are false

Discussion 0
Questions 16

SAPs in an Epipe service can only be configured on Ethernet ports

Options:

A.  

TRUE

B.  

FALSE

Discussion 0
Questions 17

Which of the following about VPRN VRF tables is FALSE?

Options:

A.  

Each VRF table contains routes for a single VPRN.

B.  

Route targets are used to determine if a prefix belongs to a VRF.

C.  

Routes in the VRF table are advertised to the core routers.

D.  

VPN labels identify which VRF table should be used for a packet.

Discussion 0
Questions 18

Which of the following about VPRN labels is FALSE?

Options:

A.  

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

B.  

The inner label identifies the VPRN service.

C.  

MP-BGP is used to signal VPRN labels.

D.  

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

Discussion 0
Questions 19

On which component is vc-type configured to create an E-pipe service that preserves the VLAN tag during transport?

Options:

A.  

The SDP itself (outside of the epipe context).

B.  

The SAP in the E-pipe.

C.  

The mesh SDP in the E-pipe.

D.  

The spoke SDP in the E-pipe.

Discussion 0
Questions 20

A service has a null encapsulated SAP and a vc-type vlan' SDP. What happens when the SAP receives an untagged Ethernet frame?

Options:

A.  

The frame is dropped.

B.  

The service ID is added as the provider VLAN tag.

C.  

A VLAN tag of 0 is added as the provider VLAN tag.

D.  

The frame is forwarded with no provider VLAN tag.

Discussion 0
Questions 21

Which of the following can be used to detect the smallest path MTU in an RSVP signaled MPLS tunnel?

Options:

A.  

ADSPEC

B.  

CSPF

C.  

Service ping

D.  

LSP trace

Discussion 0
Questions 22

Which of the following about SDPs is FALSE?

Options:

A.  

Spoke SDPs prevent loops in a VPLS.

B.  

Mesh SDPs and spoke SDPs can be used in the same VPLS.

C.  

A spoke SDP does not require the routers at both ends to be directly connected.

D.  

A mesh SDP is identical to a spoke SDP except for its flooding behavior.

Discussion 0
Questions 23

Why must the MTU be changed when configuring an IES spoke termination to a VPLS?

Options:

A.  

The default service MTU on a VPLS service is 1514 bytes.

B.  

The default IP MTU of an IES is set based on the network port MTU.

C.  

During VC label signaling, the VC MTU is verified and must match.

D.  

All of the above.

Discussion 0
Questions 24

Which of the following about route distinguishes on the Alcatel-Lucent 7750 SR is TRUE?

Options:

A.  

Route distinguishes are used to ensure that VPRN IP prefixes are globally unique.

B.  

Route distinguishes are appended to IPv4 prefixes to form IPv6 prefixes.

C.  

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

D.  

CE routes use a route distinguisher to indicate which VPRN they are associated to.

Discussion 0
Questions 25

An SDP using GRE encapsulation is configured for an E-pipe service. The network port used by the SDP has an MTU of 8000. What value does the SDP path MTU have by default on an Alcatel-Lucent 7750 SR?

Options:

A.  

7958

B.  

7978

C.  

8022

D.  

8042

Discussion 0
Questions 26

On an Alcatel-Lucent 7750 SR, which vc-type will strip service delimiting tags at the ingress PE?

Options:

A.  

vc-type ether

B.  

vc-type vlan

C.  

vc-type dotlq

D.  

vc-type null

Discussion 0
Questions 27

Click the exhibit.

The CEs use BGP and export policies to advertise their local prefixes with the VPRN on their PEs. If the VPRN is functioning properly, which of the following commands will succeed when performed on router R1?

Options:

A.  

"ping 192.168.20.1"

B.  

"oam vprn-ping 100 source 192.168.10.1 destination 192.168.20.1"

C.  

"oam vprn-ping 100 source 192.168.20.1 destination 192.168.10.1"

D.  

"ping 10.10.10.6" (router R6's system IP)

Discussion 0
Questions 28

What happens by default on an Alcatel-Lucent 7750 SR when a VPLS accepts a tagged frame at the ingress SAP 1/1/1:100?

Options:

A.  

The FCS is verified and kept in the customer frame. The VLAN tag is kept and transported over the network.

B.  

The FCS is verified and kept in the customer frame. The VLAN tag is removed for transport over the network.

C.  

The FCS is verified and removed from the frame. The VLAN tag is kept for transport over the network.

D.  

The FCS is verified and removed from the frame. The VLAN tag is removed for transport over the network.

Discussion 0
Questions 29

A network consists of four PE routers. A customer requires a VPLS and has sites connected to each PE. The VPLS is fully meshed using IP/MPLS. How many SDPs must be configured on each PE?

Options:

A.  

3

B.  

4

C.  

6

D.  

8

Discussion 0
Questions 30

Click the exhibit.

The output is from PE router R1about VPRN service 100.From which protocol did router R1learn the prefix 192.168.20.0/24?

Options:

A.  

LDP

B.  

BGP

C.  

MP-BGP

D.  

MPLS

Discussion 0
Questions 31

Which of the following statements about SAPs that are part of a VPVVS is FALSE?

Options:

A.  

SAPs can be defined on Ethernet, POS, Sonet/SDH, or TDM channels.

B.  

Only one SAP is required for a service that originates and terminates on the same Alcatel-Lucent 7750 SR.

C.  

SAPs can have QoS policies assigned to them.

D.  

Multiple SAPs can be defined on the same port.

Discussion 0
Questions 32

Which of the following about VPLS MAC learning is FALSE?

Options:

A.  

The PE routers of the service are responsible for learning MAC addresses.

B.  

Flooding ensures that all PEs in a fully-meshed VPLS will learn the source address of all traffic.

C.  

MAC learning reduces flooding of frames with previously learned addresses.

D.  

Multiple VPLSes on the same PE share the same MAC FDB.

Discussion 0
Questions 33

Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6.7. If the SAP 1/1/1:5 accepts an ingress frame, which of the following is TRUE?

Options:

A.  

The frame egresses 1/1/1:6.7 with an outer VLAN tag of 6 and inner tag of 7.

B.  

The frame is dropped at the egress SAP 1/1/1:6.7.

C.  

The frame egresses 1/1/1:6.7 with VLAN tag 5.

D.  

The frame egresses 1/1/1:6.7 with VLAN tag 6.

Discussion 0
Questions 34

Which of the following about SDPs is TRUE?

Options:

A.  

SDP IDs must be locally unique.

B.  

SDPs are specific to one service type.

C.  

SDPs must use MPLS for their encapsulation.

D.  

An SDP is required for a local service.

Discussion 0
Questions 35

A customer has sites on three different Alcatel-Lucent 7750 SRs. The customer requires a fully-meshed VPLS. Which of the following is TRUE?

Options:

A.  

Each router requires 1 SDP.

B.  

Each router requires 2 SDPs.

C.  

Each router requires 3 SDPs.

D.  

Each router requires 6 SDPs.

Discussion 0
Questions 36

Which of the following about VPRN route targets is FALSE?

Options:

A.  

Route targets are carried in MP-BGP updates.

B.  

Route targets identify the VRF that a VPN-IFV4 prefix is associated with.

C.  

Route targets are communicated between PEs that are part of a specific VPRN.

D.  

Route targets identify the egress SAP of a service towards a CE.

Discussion 0
Questions 37

Click the exhibit.

PE1 and PE2 are Alcatel-Lucent 7750 SRs.Which of the following is the missing configuration required on PE2 to complete the mirror?

Options:

A.  

Option A

B.  

Option B

C.  

Option C

D.  

Option D

Discussion 0
Questions 38

When using MP-BGP for an IPv4 VPRN service, what address family needs to be used for a PE-CE BGP session?

Options:

A.  

The VPN-IPv4 address family.

B.  

The IPv4 address family.

C.  

Either IPv4 or VPN-IPv4 address families can be configured.

D.  

The same address family must be used for the provider network and the PE-CE.

Discussion 0
Questions 39

Which of the following statements is TRUE regarding service mirroring?

Options:

A.  

Mirror slicing is used to logically separate a port that is being monitored.

B.  

Mirror slicing configuration is earned out in the mirror destination.

C.  

By default, mirror slicing is enabled so that only the protocol headers of data traffic are replicated to a mirror port.

D.  

The maximum number of mirror slices that can be made on a network and access port are 256 and 8, respectively

Discussion 0
Questions 40

Click the exhibit.

Which OAM tool produced this output?

Options:

A.  

vprn-ping

B.  

sdp-ping

C.  

traceroute

D.  

Isp-trace

Discussion 0
Questions 41

Which service type is needed to bridge an ATM-attached user and an Ethernet-attached user?

Options:

A.  

A-pipe

B.  

F-pipe

C.  

C-pipe

D.  

E-pipe

Discussion 0
Questions 42

Consider an E-pipe service configured with SAP 1/1/1:5 and SAP 1/1/1:6. If the SAP 1/1/1:5accepts an ingress frame, which of the following is TRUE?

Options:

A.  

The frame egresses from 1/1/1:6 with no VLAN tag.

B.  

The frame egresses from 1/1/1:6 with VLAN tag 5.

C.  

The frame egresses from 1/1/1:6 with VLAN tag 6.

D.  

The frame egresses from 1/1/1:6 with an inner VLAN tag of 5 and an outer VLAN tag of 6.

Discussion 0
Questions 43

Which of the following about SAPs is TRUE?

Options:

A.  

More than one SAP can be configured on a physical port that is configured for null encapsulation.

B.  

Dot1Q Ethernet encapsulated access ports can support multiple SAPs and services.

C.  

SAPs can be created on ports designated as "Network".

D.  

SAPs can only be created on Ethernet ports.

Discussion 0
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