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Questions # 1:

Click the exhibit button below.

Question # 1

Based on the configuration shown below, name the forwarding class to be associated with a TCP packet encapsulated inside an Ethernet frame that arrives on SAP 1/1/5 with the following characteristics:

Destination IP address = 120.110.1.1

TCP port number = 23

DSCP value = nc1

Dot1pvalue = 3

Options:
A.

H2

B.

NC

C.

L2

D.

EF

E.

H1

F.

BE

Questions # 2:

What is the maximum number of SAP-ingress policies that can be applied on a SAP?

Options:
A.

1

B.

2

C.

3

D.

4

E.

5

F.

8

Questions # 3:

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

Options:
A.

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

B.

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

C.

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

D.

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

Questions # 4:

Which of the following are categories of forwarding classes on the Nokia 7750 SR? (Choose two)

Options:
A.

Real-time

B.

Assured

C.

Non-conforming

D.

High priority

E.

In-profile

Questions # 5:

Question # 5

According to the SAP-ingress QoS policy shown, which of the following statements about packets processed by policer 6 is TRUE?

Options:
A.

All forwarded packets will be in-profile

B.

Packets forwarded above CIR will be marked out-of-profile and the rest will be in-profile

C.

Excess packets that arrive within a burst larger than CBS will be forwarded as out-of-profile

D.

All forwarded packets will be out-of-profile

Questions # 6:

Forwarding subclasses are only relevant to, and are therefore applied within the context of, a _____________policy.

Options:
A.

network

B.

scheduling

C.

slope

D.

SAP-ingress

E.

network-queue

Questions # 7:

Which of the following rate-limiting approaches are used on the Nokia 7750 SR? (Choose two)

Options:
A.

Shapeless policing at SAP-ingress only.

B.

Shapeless policing at SAP-ingress and egress.

C.

Biased round robin queuing at ingress only.

D.

Soft shaping at all network interfaces.

E.

Soft shaping at network ingress only.

Questions # 8:

Click the exhibit button below. A partial SAP-ingress policy configuration is shown below. A UDP video stream is sent to a PC with IP address 192.168.1.100. Given the SAP-ingress policy, to which forwarding class is the traffic matched?

Question # 8

Options:
A.

AF

B.

EF

C.

H2

D.

H1

E.

BE

Questions # 9:

Click the exhibit button below. Given the SAP-ingress policy, which of the following statements are TRUE? (Choose three)

Question # 9

Options:
A.

All AF traffic will be marked "in-profile" at the SAP-ingress.

B.

All TCP traffic will be mapped to forwarding class EF.

C.

UDP traffic is placed in queue 3 while ICMP traffic is placed in queue 5.

D.

EF traffic will receive higher scheduling priority than H2 traffic.

E.

Traffic that does not match any of the IP criteria will be placed in queue 3.

Questions # 10:

Which of the following statements regarding scheduling on the Nokia 7750 SR is TRUE? (Choose two)

Options:
A.

When using profile-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will still be considered as in-profile at egress.

B.

When an HQoS strategy using an egress port-scheduler has been deployed, Tier 1 receives its scheduling rates based on the amount of egress bandwidth available for each forwarding class.

C.

The greater the difference between PIR and CIR rates in a queue, the less likely a CIR will be provided.

D.

Packets scheduled out of high-priority queues in the default scheduler will have a lower chance of packet loss at the expense of incurring a higher probability of delay.

E.

When using priority-mode queues, traffic that is marked as in-profile on ingress and scheduled in the above-CIR loop will be considered as in-profile at egress.

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