Nokia 4A0-104 Exam Practice Test Instant Access

Question 1

Which of the following comparisons between E-pipes and VPLSes is FALSE?

AThey both function as a Layer 2 switch from the service provider's perspective.

BThey both support SAP encapsulations of null, dot1Q and Q-in-Q.

CThey both use SAPs as the demarcation point between the customer and the provider.

DMAC addresses are learned by VPLSes, but not by E-pipes.

Answer : A

Question 2

Click the exhibit.

This is output from router R4. Service 333 is a VPLS. Why does peer 10.10.10.1 not have an EgrLbl?

AThe SDP to 10.10.10.1 on router R4 is shutdown.

BRouter R4 has not sent a label to router R1 (10.10.10.1) yet.

C10.10.10.1 has a different service MTU set.

D10.10.10.1 has not sent a label to router R4 yet.

Answer : D

Question 3

By default, how does a VPLS handle a tagged frame received at the ingress of a null SAP on an Nokia 7750 SR?

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

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

CThe FCS is verified and removed from the frame. The VLAN tag is kept and transported over the network.

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

Answer : C

Question 4

Which of the following about VPLS MAC learning is FALSE?

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

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

CMAC learning reduces flooding of frames with previously learned addresses.

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

Answer : D

Question 5

An E-pipe is configured with a service MTU of 5000. What is the minimum MTU value that should be set on an access port for a dot1q encapsulated SAP on this service?

A5000

B5004

C5008

D5014

Answer : B

Question 6

In a Layer 2 encapsulation using T-LDP, what does the second (bottom) label represent?

ATunnel Label

BVC Label

COperational Control Word

DVPI

EVCI

Answer : B

Question 7

Which of the following about transport and service tunnels is FALSE?

AService tunnels are unidirectional.

BTransport tunnels are unidirectional.

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

DA local service requires a transport tunnel.

Answer : D

Nokia 4A0-104 Nokia Services Architecture Exam Practice Test