4A0-104 Online Practice Questions and Answers

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

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 Nokia 7750 SR.

C. SAPs can have QoS policies assigned to them.

D. Multiple SAPs can be defined on the same port.

Which of the following about SAPs is TRUE?

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.

Which utility on the Nokia 7750 SR can be used to investigate an MPLS path?

A. Isp-trace

B. Idp-trace

C. Sdp-ping

D. Svc-ping

E. Ping

On a Nokia 7750 SR, what is the recommended approach for making sure that MTUs between a VPLS and its spoke IES termination match?

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

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

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

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

What happens by default on a Nokia 7750 SR when a null encapsulated SAP receives a frame with a VLAN tag?

A. The original VLAN tag is removed.

B. The original VLAN tag is kept.

C. The VLAN tag is replaced by a provider tag.

D. The VLAN tag is kept and a provider tag is added.

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 a Nokia 7750 SR?

A. 7958

B. 7978

C. 8022

D. 8042

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

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

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

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

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

Once a service has been created with a customer association, it is possible to change the customer association.

A. TRUE

B. FALSE

Service tunnels and transport tunnels are bidirectional and only require the operator to configure the tunnel on one router.

A. TRUE

B. FALSE

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

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.

An E-pipe is configured with a service MTU of 5000. What MTU value should be set on the access port for a Q-in-Q encapsulated SAP?

A. 5000

B. 5004

C. 5008

D. 5018

Click the exhibit.

E-pipe 100 is using an SDP with an LSP that uses the path shown (PE1-PE2-PE3-PE4). Based on the OAM command output, which of the following is FALSE?

A. The E-pipe can support a maximum MTU size of 1578.

B. The ports of the link PE2-PE3 have an MTU of 1578.

C. An svc-ping of the E-pipe will succeed.

D. If the step size was 2, the maximum response size would be the same.

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?

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

When configuring an IES spoke termination to a VPLS, what must be explicitly configured in order for the service to come up? (Choose two.)

A. MTU must match on both services,

B. Mesh-SDP with matching vc-id configured,

C. Spoke-SDP with matching vc-id configured.

D. Spoke-SDP.

Fragmentation is supported on a Layer 2 service

A. TRUE

B. FALSE