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Nokia 4A0-C02 - Nokia SRA Composite Exam

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Page: 11 / 13
Total 639 questions

Which of the following are possible criteria for classifying packets at the SAP-ingress? (Choose three)

A.

The EXP bits in the MPLS header.

B.

The packet's source and destination IP addresses.

C.

The service ID of the service to which the SAP belongs.

D.

The dot1p bits in the frame header.

E.

The packet's Ethertype.

Which of the following statements are TRUE regarding the PE device in a QoS enabled network? (Choose two)

A.

A device that provides no differentiation between customer traffic flows.

B.

A device that classifies and marks customer traffic.

C.

A device that uses MPLS EXP bits to differentiate between traffic flows.

D.

A device that creates macroflows towards the core from multiple customer sites.

E.

A device that passes macroflows while optionally changing QoS markings.

Without_______, a customer's high priority traffic can be dropped before its low priority traffic.

A.

packet filtering

B.

prioritization of traffic flows

C.

least cost routing

D.

OAM functionality

E.

separation between the data plane and the control plane

Which of the following QoS functions does the slope-policy perform?

A.

Classification

B.

Marking

C.

Queuing

D.

Congestion management

E.

Scheduling

On the Alcatel-Lucent 7750 SR, which of the following QoS-related policies can be configured on a SAP? (Choose three)

A.

The slope-policy

B.

The SAP-ingress policy

C.

The SAP-egress policy

D.

The network-queue policy

E.

The scheduler-policy

What is the maximum number of forwarding subclasses a forwarding class can have?

A.

3

B.

64

C.

72

D.

16

E.

56

Policing improves bandwidth utilization by using buffering to absorb high bursts of traffic.

A.

TRUE

B.

FALSE

Click the exhibit button below. Given the scheduler-policy (below), how much bandwidth can the best-effort traffic receive (PIR and CIR) when the ingress rate of each queue is 10Mbps?

A.

PIR = 4Mbps. CIR = 1Mbps

B.

PIR = 1Mbps, CIR = 1 Mbps

C.

PIR = 10Mbps, CIR = 1Mbps

D.

PIR = 5Mbps, CIR = 1.25Mbps

E.

PIR = 1.25Mbps, CIR = 1.25Mbps

Which of the following statements BEST describes where shaping mechanisms should be applied?

A.

On all ports on the Alcatel-Lucent 7750 SR.

B.

At the junction of high-speed to low-speed links or at places of traffic aggregation.

C.

At the junction of low-speed to high-speed links or at places of traffic aggregation.

D.

On low-speed WAN links.

E.

Nowhere. Shaping is only performed in hardware and serviced in a round-robin.

A service provider is using GRE for his transport tunnel on the Alcatel-Lucent 7750 SR. How can traffic be marked as it traverses the service provider's network? (Choose two)

A.

Using dot1p bits of the 802.1q Ethernet frame header

B.

Using DSCP bits within the ToS field of the IP packet header.

C.

Using the IP precedence bits within the ToS field of the IP packet header.

D.

Using the CLP bit of the ATM cell header.

E.

Using the EXP bits of the MPLS transport label header.

In which policies, on the Alcatel-Lucent 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

How many queues are available for use on service egress within a VPLS service?

A.

1 multipoint and 8 unicast.

B.

8 queues, regardless of traffic type.

C.

8 unicast and 24 multipoint.

D.

8 unicast and 8 multipoint.

E.

16 queues, distributed as desired.

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 statements about a Management VPLS is FALSE?

A.

Operates in transparent mode.

B.

Carries RSTP BPDUs only.

C.

Assigns RSTP state to other VPLS services.

D.

Allows load balancing among multiple management VPLS instances.

Which of the following is NOT one of the four elements in the Nokia 7750 SR QoS solution'

A.

Marking/Remarking

B.

Classification

C.

Encapsulation

D.

Scheduling