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4A0-C02 Nokia SRA Composite Exam Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Nokia 4A0-C02 Nokia SRA Composite Exam 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 639 questions

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

A.

010011

B.

100010

C.

010001

D.

001100

E.

010010

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

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

If traffic is destined to queue 5, which has a high-priority-only value of 0 in the network-queue policy, all out-of-profile packets will be dropped.

A.

TRUE

B.

FALSE

Which of the following is an advantage of using shaping instead of policing?

A.

Shaping does not add latency.

B.

Shaping does not add jitter.

C.

Shaping protects downstream nodes from traffic bursts.

D.

Shaping requires less memory to buffer packets.

Which of the following statements about the default scheduler in the Nokia 7750 SR is TRUE?

A.

A queue will be serviced as expedited if all of the forwarding classes mapped to it are expedited, regardless of its configured type.

B.

A queue will be serviced as best-effort if all of the forwarding classes mapped to it are best-effort, regardless of its configured type.

C.

A queue will be serviced as expedited if at least one of the forwarding classes mapped to it is expedited, regardless of its configured type.

D.

A queue will be serviced as expedited if its type is configured as expedited, regardless of the forwarding classes mapped to it.

By default, how does a hybrid port on a Nokia 7750 SR share its allocated buffer space between access and network pools?

A.

All buffer space is initially allocated to access pools, and some of it is reallocated to network pools if network interfaces are configured on it.

B.

All buffer space is initially allocated to network pools, and some of it is reallocated to access pools if service SAPs are configured on it.

C.

Buffer space is allocated 50% for access pools and 50% for network pools.

D.

Buffer space is allocated 25% for access pools and 75% for network pools.

Click the exhibit button below. A network operator has configured the SAP-ingress policy below. Ping traffic is expected in queue 3. However, the network operator notices that all traffic is placed in queue 1. What is the most probable reason for this?

A.

The default forwarding class for all traffic, including ICMP, is BE, which is placed in queue 1.

B.

The SAP has been shut down.

C.

The IP-match criteria has been misconfigured for ICMP traffic.

D.

Queue 3 has no rate or CIR configured and thus cannot hold any packets.

E.

The SAP-ingress policy has not been applied to the SAP.

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

A.

network

B.

scheduling

C.

slope

D.

SAP-ingress

E.

network-queue

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

A.

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

B.

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

C.

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

D.

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

How does an IOM3 improve the queue usage over an IOM2 in an Alcatel-Lucent 7750 SR? (Choose two)

A.

The IOM3 adds more memory to both forwarding complexes which increases the total number of queues available.

B.

The IOM3 only contains a single forwarding complex which reduces the number of queues used.

C.

The IOM3 allows multiple forwarding classes to be assigned to a single queue.

D.

The IOM3 allows queues to be dynamically allocated between ingress and egress.

E.

The IOM3 has a larger CPU capable of tracking active hardware queue utilization and adjusting memory allocation accordingly.

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Total 639 questions
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