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Nokia 4A0-C02 - Nokia SRA Composite Exam

Page: 12 / 13
Total 639 questions

The following VPLS services have been configured. Which of the following statements is TRUE?

A.

All untagged frames will be dropped.

B.

All frames with more than one VLAN tag will be dropped.

C.

A frame with an outer VLAN tag of 200 and inner VLAN tag of 300 will be forwarded to VPLS 3.

D.

A frame with a single VLAN tag of 500 will be forwarded to VPLS 1.

E.

A frame with an outer VLAN tag of 100 will be forwarded to VPLS 2.

What happens to the MAC entries in the VPLS FDB when "disable-aging" is executed at the VPLS levels

A.

The individual SAPs and SDPs will age out MAC addresses for this VPLS.

B.

Aging will be disabled for locally-learned MAC addresses for this VPLS.

C.

Aging will be disabled for both local and remote MAC addresses for this VPLS.

D.

Aging will be disabled for remote MAC addresses for this VPLS.

Click the exhibit button below. Given this scheduler-policy configuration, which of the following can be said about the scheduler called "high"? (Choose two)

A.

It is a parent scheduler.

B.

It is the top-level scheduler.

C.

It can allocate up to 50 Mbps of bandwidth to scheduler "low" since the bandwidth is not used by another Tier 3 scheduler.

D.

It is a child scheduler.

E.

It can only have queues as children.

Which of the following are characteristics of DSCP? (Choose two)

A.

DSCP is part of the Layer 3 header.

B.

DSCP is a 6-bit field.

C.

DSCP specifies eight different priorities.

D.

DSCP specifies four precedence levels.

E.

DSCP is part of the Layer 2 header

F.

DSCP specifies 128 different per-hop behaviors.

Which of the following are trusted boundaries, by default? (Choose two)

A.

An IES SAP

B.

A VPLS SAP

C.

A network port

D.

AVPRN SAP

E.

An access port

On the Alcatel-Lucent 7750 SR, what is the maximum number of queues that a single SAP-ingress policy can support in a VPLS?

A.

16

B.

8

C.

32

D.

48

E.

56

In which of the following scenarios is self-generated traffic QoS (sgt-QoS) useful?

A.

EXP markings on transit control traffic are not set correctly.

B.

The priority of all self-generated traffic needs to be lowered to allow all other traffic to take precedence.

C.

The priority of various control packets requires special treatment throughout the network.

D.

The BGP process is consuming too many CPU cycles and is impacting OSPF performance.

On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)

A.

On the network egress port.

B.

On the SDP.

C.

On the access ingress port.

D.

On the egress MDA.

E.

On the SAP.

F.

On the ingress MDA.

For the Inter-AS model A VPRN, which of the following is TRUE when CE2 sends an IP packet to 192.168.1. J?

A.

PE2 pushes one label on the IP packet and label-switches it to ASBR2.

B.

ASBR2 forwards an unlabeled IP packet to ASBR1.

C.

ASBR1 pushes one label on the IP packet and label-switches it to PEL

D.

PE1 pops one label and forwards the IP packet to CE1.

Which of the following is uniquely identified by the VPLS-ID in an LDP VPLS using Auto-Discovery^*

A.

VPLS switch identifier.

B.

VPLS service identifier.

C.

VPLS router identifier to all PEs.

D.

A locally unique VPLS service identifier.

In which of the following scenarios is the egress port scheduler useful? (Choose two)

A.

A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are not being dropped on ingress.

B.

A customer is complaining that his VoIP traffic is being dropped even though it is sending the correct DSCP markings. Packets are being dropped on ingress.

C.

A commercial builder has requested numerous dot1Q epipes, VPRNs, and VPLS services to a business park and is only paying up to a maximum 200Mbps.

D.

An equipment manufacturer has requested a NULL epipe service that will transparently pass dot1Q between the new location and national headquarters.

Click the exhibit button below.

All interfaces are using their default trust states and MPLS is used as the transport tunnel. The SAP-ingress, SAP-egress, and network QoS policies have been configured as shown below. Assume that the default network-queue policy is used on each router.

At router PE 1, customer traffic is arriving marked with DSCP BE and tagged with a dot1p value of 3.

Based on the configuration shown below for the VPRN service, what will be the DSCP and dot1p marking for the packet egressing at router PE 2? (Choose two)

A.

The DSCP value will be set to af21.

B.

The DSCP value will be set to be.

C.

TheDSCPvaluewillbesettoaf23.

D.

The DSCP value will be set to af 12.

E.

Thedot1pvaluewillbesetto5.

F.

Thedot1pvaluewillbesetto2.

G.

The dot1p value will be set to 3.

Which of the following is a feature of LDP VPLS?

A.

Service labels are assigned based used on label blocks.

B.

BGP-AD, RADIUS and Management are used for auto-discovery.

C.

Service labels are signaled using MP-BGP.

D.

Hierarchical VPLS is loosely defined in the standards.

When allocating scheduling resources, which of the following statements BEST describes how the egress port scheduler allocates bandwidth?

A.

The egress port scheduler takes the ratio of requested bandwidth to total bandwidth request from all children. It allocates bandwidth fairly, using these percentages and not exceeding the egress interface speed.

B.

The egress port scheduler allocates bandwidth based on a WRR distribution method that takes into account the CIR and PIR requested at each level and the max speed, either default or configured, on egress.

C.

The egress port scheduler allocates bandwidth on a first come, first served distribution method that takes into account the total CIR and PIR requested at each level and the max PIR requested from a single level.

D.

The egress port scheduler will limit the bandwidth offered to the egress port based on the over-subscription factor, provisioned under the router interface, while using a WRR scheduler for the remaining bandwidth.

E.

The egress port scheduler will use the Russian Dolls Method to allocate bandwidth to each level of requested bandwidth. HPO-Only is automatically set to 100%, allowing only high priority traffic to be buffered during congestion.

Which of the following parameters are used in a hierarchical scheduler-policy to specify the priority of the child scheduler/queue for allocating bandwidth beyond its committed rate? (Choose two)

A.

CIR

B.

CIR level

C.

CIR weight

D.

Rate

E.

Level

F.

Weight