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4A0-107 Nokia Quality of Service Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-107 Nokia Quality of Service certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Total 231 questions

In a Nokia 7750 SR, which of the following QoS policies CANNOT include packet classification criteria?

A.

SAP-ingress

B.

SAP-egress

C.

Network-queue

D.

Network

Packets arrive at the VPLS 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 DSCP value of packets egressing router PE2? (All the SDPs are MPLS-encapsulated, and all interfaces are using their default trust states).

A.

af11

B.

af21

C.

af23

D.

af31

Which of the following statements about buffer admission control techniques is FALSE?

A.

A packet is accepted into a queue based on its priority and forwarding class.

B.

Buffer admission control limits the number of out-of-profile packets that enter the queue.

C.

Both high priority-only buffer space and WRED can be used in a queue.

D.

Priority is used when a packet enters a SAP-ingress queue.

Click the exhibit button below.

Based on the configuration of the network policy (below), what will be the forwarding class associated with a MPLS encapsulated customer packet that arrives on a dotlQ encapsulated network port 1/1/4:1 on P1 with the following characteristics:

EXP value = 6

DSCP value = cs1

Dot1pvalue = 3

A.

EF

B.

H1

C.

L1

D.

H2

E.

L2

Which of the following self-generated traffic applications is considered “protocol” traffic, as opposed to “management” traffic?

A.

BGP

B.

Telnet

C.

ICMP

D.

SNMP

Which of the following about scheduling is TRUE?

A.

HQoS schedulers cannot be children of an egress port-scheduler.

B.

HQoS schedulers provide a dynamic method of allocating scheduling resources to queues.

C.

HQoS scheduler policies can be applied to an MDA to schedule network ingress traffic.

D.

A scheduler policy applied to multiple SAPs within the same service will result in a single hardware scheduler operating across all SAPs within the service.

What is the 6-bit binary representation of DSCP value AF21?

A.

010011

B.

100010

C.

010001

D.

001100

E.

010010

Which of the following is NOT an adaptation rule supported on the Nokia 7750 SR for calculating the operational CIR/PIR of a queue?

A.

Closest

B.

Average

C.

Min

D.

Max

Which of the following statements are TRUE when discussing self-generated traffic QoS? (Choose two)

A.

In order to mark Layer 2 traffic, sgt-qos will set various ToS bits.

B.

DSCP bits can be set per application, per routing instance.

C.

The DSCP marking stays nc1 for all applications. Only the internal FC is manipulated across different applications.

D.

In order to mark Layer 2 self-generated traffic, network interfaces must be set to dot1Q.

E.

The internal forwarding class for self-generated traffic is set once and applied to the base router and all VPRN instances.

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Total 231 questions
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