Home / Nokia / 4A0-107

Nokia 4A0-107 Practice Test - Questions Answers, Page 10

Question list

List of questions

Question 91

(0)

A queue is configured with the following attributes: MBS = 10KB CBS = 5KB High-Priority-Only = 30% Assume that there is no CBS overbooking and that the slope-policy is disabled. If the current q

Question 92

(0)

Click the exhibit button below. Each router is interconnected by a single GigE link, as shown in the diagram below. Note: The arrows show the direction of traffic flow. Traffic from Customer A a

Question 93

(0)

Click the exhibit button below. Given that the slope-policy (below) has been enabled and applied on a network port, which of the following statements are TRUE? (Choose three)

Question 94

(0)

Which of the following QoS functions does the slope-policy perform?

Question 95

(0)

Which of the following are entities of the Nokia 7750 SR on which you can NOT apply a network-queue policy? (Choose three)

Question 96

(0)

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

Question 97

(0)

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)

Question 98

(0)

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 confi

Question 99

(0)

When deploying an Nokia MPLS network with QoS, how are the EXP bits set?

Question 100

(0)

In which policies, on the Nokia 7750 SR. is classification performed? (Choose three)

Question 91

A queue is configured with the following attributes:

MBS = 10KB

CBS = 5KB

High-Priority-Only = 30%

Assume that there is no CBS overbooking and that the slope-policy is disabled. If the current queue depth is 8KB, what will happen to an in-profile packet arriving in the queue?

It will be discarded because the high-priority-only threshold is exceeded.

It will be queued but re-marked as 'out-of-profile.'

It will be queued in the reserved portion of the buffer pool and remain 'in-profile.'

It will be queued in the shared portion of the buffer pool but contend for shared buffer space with packets from other queues.

It will be queued in the shared portion of the buffer pool but may be dropped if the buffer utilization exceeds the start-average value of the low slope.

Show Answer Comment (0)

Question 92

Click the exhibit button below. Each router is interconnected by a single GigE link, as shown in the diagram below.

Note: The arrows show the direction of traffic flow.

Traffic from Customer A and Customer B that is classified to the same forwarding class is queued together at the ingress of Router B.

True

False

Show Answer Comment (0)

Question 93

Click the exhibit button below. Given that the slope-policy (below) has been enabled and applied on a network port, which of the following statements are TRUE? (Choose three)

All out-of-profile traffic will be dropped before any in-profile is dropped.

The time average factor of 0 will discard all packets arriving in the shared buffer pool.

When the shared buffer utilization reaches 51%, in-profile packets might be dropped.

The highest probability with which an out-of-profile packet can be dropped is 20%.

When an in-profile packet arrives and the shared buffer utilization is at 69%, the packet will have approximately a 60% likelihood of being discarded.

Show Answer Comment (0)

Question 94

Which of the following QoS functions does the slope-policy perform?

Classification

Marking

Queuing

Congestion management

Scheduling

Show Answer Comment (0)

Question 95

Which of the following are entities of the Nokia 7750 SR on which you can NOT apply a network-queue policy? (Choose three)

Router interfaces

Ingress MDA

Ingress Ethernet network ports

Egress Ethernet network ports

Service SAPs

Show Answer Comment (0)

Question 96

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

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.

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.

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.

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.

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.

Show Answer Comment (0)

Question 97

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)

CIR

CIR level

CIR weight

Rate

Level

Weight

Show Answer Comment (0)

Question 98

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)

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.

Show Answer Comment (0)