Question 1

By default, how does a hybrid port on a Nokia 7750 SR share its allocated buffer space between access and

network pools?

Options :

A :

All buffer space is initially allocated to access pools, and some of it is reallocated to network pools if

network interfaces are configured on it.

B :

All buffer space is initially allocated to network pools, and some of it is reallocated to access pools if

service SAPs are configured on it.

C :

Buffer space is allocated 50% for access pools and 50% for network pools.

D : Buffer space is allocated 25% for access pools and 75% for network pools.

Answer: C

Question 2

If packets egressing a SAP do not match any criteria defined in the SAP-egress policy, which forwarding class

will these packets be assigned to?

Options :

A : The default forwarding class defined in the SAP-egress policy.

B : The forwarding class inherited from network ingress classification.

C : Best Effort.

D : If there is no match, packets will be dropped.

Answer: A

Question 3

An IOM3 card of a Nokia7750 SR is enabled with the default scheduler and the policy shown in the image is

applied to an access port on this card. In which order will packets be scheduled out of the queues?

Options :

A : Queue 3 within-CIR packets, then queue 4 within-CIR packets, then queue 3 and queue 4 above-CIR packets in round-robin.

B :

Queue 4 within-CIR packets, then queue 3 within-CIR packets, then queue 3 and queue 4 above-CIR

packets in round-robin.

C : Queue 3 within-CIR packets, then queue 4 within-CIR packets, then queue 3 above-CIR packets, and
finally queue 4 above-CIR packets.

D : Queue 4 within-CIR packets, then queue 3 within-CIR packets, then queue 4 above-CIR packets, and finally queue 3 above-CIR packets.

Answer: B

Question 4

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

Options :

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.

Answer: B,D

Question 5

What is an SLA? (Choose two)

Options :

A : An SLA is used to provide automated, real-time testing and alarming for throughput, latency, and jitter across a provider-s network.

B : An SLA is an agreement between a customer and a provider that dictates the treatment of customer traffic across the provider-s network.

C : An SLA allows customers to control all traffic within the service provider-s network by prioritizing their traffic over others as desired.

D : An SLA allows a customer to pre-mark traffic and ensure that traffic is treated as per the agreement within the provider-s network.

E : An SLA is a standard set of network QoS policies that a provider shares to all its customers, allowing them to better understand the treatment of traffic within the provider-s network.

Answer: B,D

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