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4A0-107
Nokia Quality of Service Questions and Answers

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Viewing questions 41-50 out of questions

Questions # 41:

Which of the following is NOT an advantage of deploying queue-groups on a network port?

Options:

It enables fine-tuned SLA control that is not possible when using a common set of queues for all L2/L3 services.

It enables CFHP and hierarchy scheduling (egress) for each network interface.

It improves scalability by allowing the use of queues instead of the default set of policers used on network egress.

It allows for enforcing bandwidth reservations of the LSPs that are used by the SDPs configured on the network interfaces.

Answer

Questions # 42:

Which of the following statements regarding the egress port scheduler is TRUE?

Options:

The egress port scheduler can have up to 17 children spread across 8 levels.

Multiple egress port schedulers can be assigned to a single port with many HQoS children.

Multiple HQoS policies can be children of a single port scheduler.

Multiple egress port schedulers can be children of a single HQoS scheduler.

Answer

Questions # 43:

Which of the following statements are TRUE? (Choose two)

Options:

The primary contributors to latency are distance, scheduling, and congestion.

The weighted round robin scheduling algorithm will result in more delay for high priority traffic than the regular round robin algorithm.

The round robin scheduling algorithm will result in less jitter for low priority traffic than a strict priority scheduler.

Packet loss can be reduced by decreasing the amount of buffer space available to a queue.

Latency can be reduced by increasing the amount of buffer space available to a queue.

Answer

A, C

Questions # 44:

Which of the following statements about configuring a hierarchical scheduler policy on a SAP is FALSE?

Options:

Several Tier 1, Tier 2, and Tier 3 schedulers can be defined within a policy.

A queue’s parent scheduler must be a Tier-3 scheduler.

The parent must have a higher level in the hierarchy.

If no parent is configured, the queue/scheduler is considered orphaned.

Answer

Questions # 45:

On the Nokia 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.

Answer

A, F

Questions # 46:

Click the exhibit button below. Traffic arriving at router PE 1 is marked with a dot1p value of 4. Given the network policies applied on the routers in the diagram below, what is the EXP value of packets arriving at router PE 2?

Question # 46

Note: Only relevant portions of the network policy are shown.

Options:

None of the above.

Answer

Questions # 47:

Which of the following are NOT ingress matching criteria for a network policy? (Choose two)

Options:

TCP port numbers

LSP EXP

DSCP

Source and destination IP addresses

Dot1p priority

Answer

A, D

Questions # 48:

Which of the following statements about buffer admission control techniques is FALSE?

Options:

A packet is accepted into a queue based on its priority and forwarding class.

Buffer admission control limits the number of out-of-profile packets that enter the queue.

Both high priority-only buffer space and WRED can be used in a queue.

Priority is used when a packet enters a SAP-ingress queue.

Answer

Questions # 49:

Click the exhibit button below.

Question # 49

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.

Answer

D, E

Questions # 50:

In a Nokia 7750 SR, which of the following is a class type that is intended for non-real-time customer traffic that requires some committed bandwidth?