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Nokia 4A0-F10 Exam Syllabus Topics:

Section	Objectives
Topic 1: Introduction to Fixed Networks	- Broadband access services - Fixed Wireless Access (FWA) - FTTx concepts and solutions - Broadband network fundamentals - FTTH concepts and solutions
Topic 2: Access Network	- Multicast protocols for video distribution - Access network architecture - Quality of Service (QoS) fundamentals - Optical Line Terminal (OLT) functionality
Topic 3: Home Network	- Home network devices - Home network device management - Home network connectivity - Wi-Fi fundamentals
Topic 4: Fixed Networks Management	- Nokia SDAN solution - Altiplano SDAN Controller - IPFIX telemetry collection - Corteca home device controller - NFV and SDN fundamentals - NETCONF and YANG
Topic 5: Broadband Services	- Lightspan service components - Voice services - Intent mapping to network layers - Intent-Based Networking (IBN) - High-speed Internet services - IPTV services - Value-added and triple-play services

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Nokia Fixed Networks Fundamentals Sample Questions (Q30-Q35):

NEW QUESTION # 30
A YANG model specifies that a configuration leaf can contain an integer from 1 through 4094. What is the principal benefit of this restriction?

A. It converts the integer into an Ethernet frame.
B. It enables configuration values to be validated against the defined data model.
C. It allows invalid values to be corrected automatically by the optical splitter.
D. It prevents the leaf from being accessed through NETCONF.

Answer: B

Explanation:
YANG can define data types, ranges, patterns, mandatory nodes, default values, and relationships between configuration elements. A range restriction allows management software and network devices to verify that a submitted value falls within the permitted limits. For example, restricting a VLAN-related integer to an appropriate range prevents clearly invalid values from being accepted. This model-driven validation reduces configuration errors and makes automation more predictable. A passive optical splitter has no processing capability and cannot correct invalid configuration. The restriction also does not convert a value into an Ethernet frame or prevent NETCONF access. Instead, NETCONF can carry configuration data structured according to the YANG model, and the server can reject an <edit-config> request when the proposed data violates applicable schema constraints.

NEW QUESTION # 31
What is a typical function of the Network Termination card in a Nokia Lightspan access node?

A. It provides Wi-Fi connectivity directly to subscriber mobile devices.
B. It provides external network-facing interfaces through faceplate connectors or optical cages.
C. It operates as the passive splitter in the Optical Distribution Network.
D. It terminates every analog telephone inside the subscriber's home.

Answer: B

Explanation:
The Network Termination card provides network-facing connectivity for a Lightspan access node. Its faceplate can contain connectors and optical cages used to connect the node to external aggregation, transport, management, synchronization, or other supported interfaces. The card participates in forwarding traffic between subscriber-facing line termination resources and the upstream network. It is an active component and must not be confused with a passive optical splitter in the outside plant. It also does not provide in-home Wi-Fi directly to subscriber devices; that function belongs to a residential gateway or Wi-Fi access point. Analog telephones are normally connected through voice-capable subscriber equipment, such as an ONT with appropriate telephone interfaces, rather than directly to the Lightspan NT card.

NEW QUESTION # 32
Which characteristic distinguishes G.fast from traditional ADSL technologies?

A. G.fast operates only over passive optical splitters.
B. fast is designed to deliver high broadband rates over relatively short copper loops, frequently using existing building or drop wiring. It uses a much wider and higher-frequency spectrum than traditional ADSL and commonly employs Time Division Duplexing. With TDD, upstream and downstream transmission use the same frequency spectrum during different time intervals. The upstream-to-downstream capacity ratio can therefore be adjusted through the TDD configuration. Higher frequencies can support greater capacity but experience substantial attenuation over distance, which is why G.fast is best suited to short loops. It does not operate through passive optical splitters, although fiber may be deployed close to the subscriber before the final copper segment. G.fast also supports broadband services rather than voice-only delivery.
C. G.fast carries only voice services and does not support broadband data.
D. G.fast commonly uses high frequencies and time-division duplexing over short copper loops.
E. G.fast requires a separate copper pair for upstream and downstream traffic.

Answer: D

NEW QUESTION # 33
A provider wants to separate every subscriber's traffic throughout the access network, even when subscribers use the same service. Which VLAN model best meets this requirement?

A. VLAN per subscriber
B. One untagged VLAN for the entire access network
C. VLAN per service
D. One VLAN for every multicast channel

Answer: A

Explanation:
A VLAN-per-subscriber model assigns a distinct VLAN context to each subscriber, providing clear Layer 2 separation between subscribers even when they consume the same service. This can simplify subscriber identification and support individual policy or forwarding treatment, but it requires the network to accommodate a larger number of VLANs. In a VLAN-per-service model, multiple subscribers using the same service can share a service VLAN toward the aggregation network. The access node must then preserve subscriber isolation through other forwarding controls and map traffic correctly between subscriber-facing and network-facing interfaces. Using one untagged VLAN for the entire access network provides insufficient segmentation. Assigning a VLAN to each multicast channel categorizes content rather than uniquely separating individual subscribers and therefore does not meet the stated requirement.

NEW QUESTION # 34
In intent-based networking, what does an operator primarily specify through an intent?

A. The desired network outcome or state
B. A list of packets that must be forwarded individually
C. The optical power measured at every point in the fiber
D. Every electrical characteristic of each hardware component

Answer: A

Explanation:
An intent describes the desired network outcome or target state rather than requiring the operator to manually enter every device-level command. The intent system maps the requested outcome to the configurations and resources needed on the relevant network elements. It can then compare the intended state with the observed operational state and take corrective action when supported. Intent types, profiles, and associated models provide the logic and parameters required for this translation. An intent does not normally specify the electrical construction of hardware or list every packet to be forwarded. Optical measurements may be used as operational inputs, but they are not the general definition of an intent. This abstraction improves consistency, supports automation, and reduces repetitive device-by-device configuration work.

NEW QUESTION # 35
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