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How does an IOM3 improve the queue usage over an IOM2 in a Nokia 7750 SR? (Choose two)

A.

The IOM3 adds more memory to both forwarding complexes which increases the total number of queues available.

B.

The IOM3 only contains a single forwarding complex which reduces the number of queues used.

C.

The IOM3 allows multiple forwarding classes to be assigned to a single queue.

D.

The IOM3 allows queues to be dynamically allocated between ingress and egress.

E.

The IOM3 has a larger CPU capable of tracking active hardware queue utilization and adjusting memory allocation accordingly.

In the image shown above, the SAP-ingress policy is applied properly to a Nokia 7750 SR. A packet is received from an IP address of 192.168.2.2 with DSCP set to AF. Which forwarding class and priority level is assigned to this packet?

A.

NC, low

B.

NC, high

C.

BE, low

D.

BE, high

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

A.

SAP-ingress policy

B.

SAP-egress policy

C.

IP-criteria policy

D.

Network-queue policy

E.

Slope policy

F.

Network policy

Which of the following fields in packets belonging to a Layer 3 service can be pre-marked on SAP-ingress?

A.

Dot1p

B.

DEI

C.

EXP

D.

DSCP/PREC

At which points can traffic be marked or remarked on the Nokia 7750? (Choose two)

A.

SAP-ingress only

B.

SAP-egress only

C.

SAP-ingress and SAP-egress

D.

Network ingress

E.

Network egress

Which of the following BEST describes a SAP when regarding QoS?

A.

A point in the network where EXP bits can be mapped to one of eight predefined FCs, each one with its own queue.

B.

A logical point in a service tunnel where all of customer traffic is aggregated.

C.

A point at which the initial classification of customer traffic occurs.

D.

A point in the network where QoS parameters are discarded in favor of lower-level hardware queuing functions, such as LLI (Link Layer Interleave).

E.

A point in the network where traffic flows from multiple different services are queued together, based on forwarding class.

Which of the following statements regarding policing and shaping on the Nokia 7750 SR are TRUE? (Choose two)

A.

The larger the configured MBS value, the lower the amount of shaping performed.

B.

When policing is enabled on the SAP-ingress, all traffic is considered as in-profile.

C.

Setting the CIR to 1000 and the PIR to max will enable shapeless policing at 1 Mbps within the SAP-egress policy.

D.

Configuring MBS to equal CBS will disable shaping.

E.

Setting the CIR and PIR to equal values disables soft-policing.

With hierarchical scheduling, up to ___________ tiers are supported on the Nokia 7750 SR.

A.

8

B.

3

C.

4

D.

5

E.

6

Why are the four QoS steps (classification, queuing, scheduling, and marking/remarking) executed twice for every packet entering a 7750 SR router?

A.

Once before going through each of the redundant switching fabrics.

B.

To protect against failure of either ingress or egress card.

C.

Once before going through the switching fabric, and once more before going onto the egress port.

D.

Once to decide if the packet is in-profile or out-of-profile, and once more to process the packet according to its profile.