Trusted Nokia 4A0-107 Exam Dumps – Avoid Costly Exam Retakes

Question No: 1

MultipleChoice

Click the exhibit button below. Given the output of the #show pools 1/2/2 network-egress command on a GigE port, what can the service provider deduce? (Choose two)

Options

AQoS is not configured on the router.

BPackets in forwarding classes 'be' and '12' are being queued.

CTraffic belonging to forwarding class 'ef' is not experiencing queuing delays.

DTraffic belonging to forwarding class '11 'will never make use of the shared buffer pool.

EOut-of-profile traffic in the shared buffer pool is being dropped.

Question No: 2

MultipleChoice

Which option best traffic types is typically rate-limited by applying shaping and soft-policing on access ingress?

Options

ASelf-generated

BReal-time

CBest-effort

DAssured

Question No: 3

MultipleChoice

The network QoS policy shown below is applied properly to a Nokia 7750 SR acting as a transit Label Switch Router (LSR) for a given MPLS tunnel. A packet is received inside the MPLS tunnel with EXP=4, dot1p=4, and DSCP=AF. Which forwarding class is assigned to this packet?

Options

AL2

BH1

CAF

DBE

Question No: 4

MultipleChoice

Which of the following statements about the token buckets of a policer is TRUE?

Options

AWhen a packet arrives, the PIR bucket depth is checked and the packet is discarded if this bucket is full.

BThe CIR bucket of a policer is the reserved portion of its PIR bucket.

CThe CIR bucket of a policer has two thresholds: CBS and HPO.

DPackets processed by the PIR bucket at an average rate above PIR will be forwarded as out-of-profile.

Question No: 5

MultipleChoice

Which of the following statements are TRUE regarding the remarking of packets arriving on the network interface whose ToS-marking-state is set to trusted and remarking enabled on network egress? (Select two)

Options

ANative IP Packets will not be remarked.

BNative IP Packets will be remarked.

CPackets associated with a VPRN service on an upstream node will not be remarked.

DPackets associated with an ES service on an upstream node will be remarked.

Question No: 6

MultipleChoice

On the Nokia 7750 SR, what is the maximum number of queues that a single SAP-ingress policy can support in a VPLS?

Options

A16

B8

C32

D48

E56

Question No: 7

MultipleChoice

Which option best statements BEST describes where shaping mechanisms should be applied?

Options

AOn all ports on the Nokia 7750 SR.

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

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

DOn low-speed WAN links.

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

Question No: 8

MultipleChoice

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

Options

ASAP-ingress policy

BSAP-egress policy

CIP-criteria policy

DNetwork-queue policy

ESlope policy

FNetwork policy

Question No: 9

MultipleChoice

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

Options

AReal-time

BAssured

CNon-conforming

DHigh priority

EIn-profile

Question No: 10

MultipleChoice

When deploying an Alcatel-Lucent MPLS network with QoS, how are the EXP bits set?

Options

AThe first 3 bits of the DSCP value are copied directly into the EXP field on the first network egress.

BThe EXP bits are set on the first network egress, based on a combination of the SAP-ingress classification and the network policy applied.

CThe 3 priority bits are copied directly from the dot1p header into the EXP field of the first MPLS header.

DThe EXP bits are set based on a default map that translates DSCP codes into internal forwarding classes on SAP-ingress.

Question No: 11

MultipleChoice

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

Options

AWhen 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.

BWhen 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.

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

DPackets 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.

EWhen 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.

Question No: 12

MultipleChoice

Which of the following are entities of the Alcatel-Lucent 7750 SR on which you can NOT apply a network-queue policy? (Choose three)

Options

ARouter interfaces

BIngress MDA

CIngress Ethernet network ports

DEgress Ethernet network ports

EService SAPs

Question No: 13

MultipleChoice

With hierarchical scheduling, up to ___________ tiers are supported on the Alcatel-Lucent 7750 SR.

Options

A8

B3

C4

D5

E6

Question No: 14

MultipleChoice

On the Alcatel-Lucent 7750 SR, how many queues per FC are available for multipoint traffic within a VPLS on service ingress?

Options

A64

B8

C3

D16

E1

Question No: 15

MultipleChoice

On the Alcatel-Lucent 7750 SR, what is a slope policy used for?

Options

ADefining the slope of the TCP slow-start mechanism for self generated traffic.

BDefining the slope of the scheduling rate per forwarding class when using HQoS.

CDefining the high and low slope values when deploying buffer admission control for UDP traffic in the committed buffer pool.

DDefining the high and low slope values when deploying buffer admission control for TCP traffic in the shared buffer pool.

EDefining the high and low slope values when deploying buffer admission control for TCP traffic in the committed buffer pool.

Question No: 16

MultipleChoice

On an Alcatel-Lucent IOM 3, how is buffer memory allocated per forwarding complex?

Options

A512 MB ingress, 512 MB egress

B256 MB ingress, 256 MB egress

C1 GB dynamically allocated between ingress and egress.

D768 MB dynamically allocated between ingress and egress.

E768 MB, with a minimum of 256 MB ingress and egress, and an additional 256 MB dynamically allocated.

Question No: 17

MultipleChoice

On the Alcatel-Lucent 7750 SR, where can network-queue policies be applied? (Choose two)

Options

AOn the network egress port.

BOn the SDP.

COn the access ingress port.

DOn the egress MDA.

EOn the SAP.

FOn the ingress MDA.

Question No: 18

MultipleChoice

Which of the following statements describe the primary objectives of the policing of traffic flows on the Alcatel-Lucent 7750 SR? (Choose two)

Options

AEnsure that traffic flows conform to their traffic profile.

BLog violations of metered traffic flows exceeding the CIR value set on the entity across which the traffic is moving.

CProvide fairness between traffic flows, so that conforming (in-profile) traffic flows are not starved of bandwidth and/or buffer space by non-conforming (out-of-profile) flows.

DMinimize packet loss and reduce end to end latency.

EEnsure that variable latencies do not cluster short bursts of originally conforming packets and render them nonconforming.

Question No: 19

MultipleChoice

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

Options

AThe slope-policy

BThe SAP-ingress policy

CThe SAP-egress policy

DThe network-queue policy

EThe scheduler-policy

Question No: 20

MultipleChoice

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)

Options

AUsing dot1p bits of the 802.1q Ethernet frame header

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

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

DUsing the CLP bit of the ATM cell header.

EUsing the EXP bits of the MPLS transport label header.

Free Nokia 4A0-107 Exam Dumps August 2026