Nokia 4A0-C02 Exam Questions Free Practice Test

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Questions # 1:

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

Question # 1

Options:

It is a parent scheduler.

It is the top-level scheduler.

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

It is a child scheduler.

It can only have queues as children.

Questions # 2:

Click the exhibit button below. The service provider has both a VLL (epipe) service and a VPLS, as shown in the diagram below.

Question # 2

At router PE B, traffic arriving from both services will have the same network-queue policy applied.

Options:

TRUE

FALSE

Questions # 3:

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

Options:

DSCP is part of the Layer 3 header.

DSCP is a 6-bit field.

DSCP specifies eight different priorities.

DSCP specifies four precedence levels.

DSCP is part of the Layer 2 header

DSCP specifies 128 different per-hop behaviors.

Questions # 4:

Which of the following statements is considered best practice when changing a network policy that has been associated with an interface?

Options:

The policy should be placed in a "shutdown" state before changes are made.

A new network policy should be created and applied to the interface, overwriting the previous policy.

The policy must first be removed from the interface, then modified and re-applied to the interface.

Before the policy can be changed, it must be deleted with the no network qos command.

Before any changes are made to the policy, all network interfaces where the policy is applied have to be shut down.

Questions # 5:

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

Options:

On the network egress port.

On the SDP.

On the access ingress port.

On the egress MDA.

On the SAP.

On the ingress MDA.

Questions # 6:

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

Options:

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

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

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

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

Questions # 7:

If traffic is destined to queue 5, which has a high-priority-only value of 0 in the network-queue policy, all out-of-profile packets will be dropped.

Options:

TRUE

FALSE

Questions # 8:

How many queues are available for use on service egress within a VPLS service?

Options:

1 multipoint and 8 unicast.

8 queues, regardless of traffic type.

8 unicast and 24 multipoint.

8 unicast and 8 multipoint.

16 queues, distributed as desired.

Questions # 9:

Which of the following statements are TRUE regarding the building of a QoS-enabled network? (Choose two)

Options:

It is important that all packets are classified in the same way at all SAP-ingress points.

Once a packet is classified to a forwarding class, it cannot change across the network.

Packet enters a node will be treated as per the local hop's configured policy.

Native IP packets entering a network port will be marked at the first network egress by default

Native IP packets entering a network port will not be marked at the first network egress by default.

Native IP packets entering a network port will be marked at the first network egress, regardless of the re-marking configuration.

Questions # 10:

Which of the following can be used as classifiers of customer traffic? (Choose three)

Options:

DSCP value

802.1p value

IP DF bit

TCP/UDP port numbers

HTML version number

Questions # 11:

Click the exhibit button below.

Question # 11

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)

Options:

The DSCP value will be set to af21.

The DSCP value will be set to be.

TheDSCPvaluewillbesettoaf23.

The DSCP value will be set to af 12.

Thedot1pvaluewillbesetto5.

Thedot1pvaluewillbesetto2.

The dot1p value will be set to 3.

Questions # 12:

According to the SAP-ingress QoS policy shown, which packets have a higher priority to enter queue 6?

Question # 12

Options:

Those marked with dotlp = 5.

Those marked with dscp = "ef.

All packets mapped to queue 6 have the same priority to use the available buffer space.

There are no packets mapped to Queue 6.

Questions # 13:

Which of the following entities can scheduler policies be applied to? (Choose two)

Options:

Network ingress port

Epipe ingress SAP

ES egress SAP

Ingress MDA

VPRN ingress interface

Shared buffer space

Questions # 14:

Without_______, a customer's high priority traffic can be dropped before its low priority traffic.

Options:

packet filtering

prioritization of traffic flows

least cost routing

OAM functionality

separation between the data plane and the control plane

Questions # 15:

Policing improves bandwidth utilization by using buffering to absorb high bursts of traffic.

Options:

TRUE

FALSE

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