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The IP ToS field consists of ________ bits, of which ________are used. The _________most significant (first) bits define precedence.

A.

8, 6, 3

B.

8, 8, 6

C.

16, 8, 4

D.

8, 6, 4

E.

24, 16, 8

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

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.

Which priority-mode queue parameter may influence both the profile marking, and scheduling priority of a queue?

A.

PIR

B.

CIR

C.

MBS

D.

burst-limit

Packets arrive at the VPRN SAP on PE1 with DSCP marking of af11 and Dot1p of 2. According to the QoS policies applied at routers PE1, P, and PE2, what is the dot1p value of packets egressing routerPE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

A.

2

B.

3

C.

5

D.

6

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?

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

A.

2

B.

3

C.

5

D.

6

E.

None of the above.

Which of the following statements describes a queue’s weight parameter that is used in the hierarchical scheduling?

A.

The weight specifies the priority of the queue during scheduling up to its CIR.

B.

The weight specifies the priority of the queue during scheduling above-CIR, up to its PIR.

C.

The weight is used to determine how this queue and other queues or schedulers at the same CIR-level share available CIR bandwidth at that level.

D.

The weight is used to determine how this queue and other queues or schedulers at the same level share available above CIR bandwidth at that level.

Which of the following policies does NOT exist by default on a network port?

A.

A network policy for every network interface configured on the port.

B.

A slope policy for the port on ingress.

C.

A network queue policy for the corresponding MDA on ingress.

D.

A network queue policy for the port on egress.

According to the configuration shown above, which of the following about the classification and marking of self- generated BGP traffic is TRUE?

A.

It will be marked as DSCP BE and classified into forwarding class BE.

B.

It will be marked as DSCP NC1 and classified into forwarding class BE.

C.

It will be marked as DSCP NC1 and classified into forwarding class NC.

D.

It will be marked as DSCP NC1 and classified into forwarding class AF.

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

A.

Queue 5 is using priority mode.

B.

UDP traffic can be serviced at a maximum rate of 20 Mbps.

C.

Ping traffic is place in queue 5.

D.

Queues 5 and 6 will receive equal portions of any remaining available bandwidth to meet their above-CIR bandwidth requirements.

E.

Queue 3 is scheduled before queue 5.

What can be learned from the output of the command “show pools 1/2/2 network-egress” on the GigE port?

A.

All incoming packets belonging to forwarding class “l2” are stored in the reserved buffer space.

B.

All incoming packets belonging to forwarding class “af” are stored in the reserved buffer space.

C.

All incoming packets belonging to forwarding class “l1” are stored in the reserved buffer space.

D.

In-profile packets in the shared buffer space are being dropped.