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Nokia 4A0-F10 Exam Syllabus Topics:

SectionObjectives
Topic 1: Broadband Services- Internet, IPTV and voice services
- Lightspan service components
Topic 2: Fixed Networks Management- Netconf/YANG and telemetry
- Altiplano Software-Defined Access Network (SDAN)
- NFV and SDN concepts
Topic 3: Home Network- Wi-Fi fundamentals
- Home devices and connectivity
Topic 4: Introduction to Fixed Networks- Broadband access fundamentals
- FTTH, FTTx and FWA solutions
Topic 5: Access Network- Multicast and QoS principles
- Access network architecture
- OLT functions

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Nokia Fixed Networks Fundamentals Sample Questions (Q27-Q32):

NEW QUESTION # 27
In a Lightspan High-Speed Internet service architecture, what is the role of the HSI VPLS on the IHUB?

Answer: C

Explanation:
The HSI VPLS on the integrated hub provides the Layer 2 switching context used to carry High-Speed Internet traffic between HSI forwarders and the network-facing side of the access node. Subscriber traffic arriving through an ONT is associated with an HSI forwarder on the relevant line termination resources. The forwarder connects that traffic to the HSI VPLS, which then switches it toward one or more NNIs leading to the aggregation network. The VPLS does not perform optical-to-analog voice conversion, Wi-Fi radio management, or DSL vectoring. Those functions belong to different service components or technologies. This logical service architecture allows subscriber-facing resources and network-facing interfaces to participate in a controlled Ethernet forwarding domain while supporting the required service separation and policies.


NEW QUESTION # 28
In intent-based networking, what does an operator primarily specify through an intent?

Answer: C

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 # 29
Which Corteca component is intended primarily for use by the subscriber during Wi-Fi installation and management?

Answer: B

Explanation:
The Corteca mobile application provides subscriber-facing capabilities that can support self-installation and home Wi-Fi management. Depending on the enabled service, the subscriber can receive installation guidance, view the home network, manage connected devices, and perform supported troubleshooting or configuration tasks. The service provider uses other Corteca platform components for centralized service management, visibility, and operational control. An OLT network termination card provides access-node network connectivity and is not a subscriber application. An IPFIX collector receives traffic-flow records, while a NETCONF candidate datastore holds proposed device configuration before it is committed. Separating subscriber-facing and operator-facing functions allows the provider to offer controlled self-service capabilities without exposing the complete network-management environment or low-level access-device configuration to the end user.


NEW QUESTION # 30
Which Wi-Fi 7 capability allows a compatible device to use more than one frequency-band link as part of the same connection?

Answer: C

Explanation:
Multi-Link Operation is a major Wi-Fi 7 capability that enables compatible devices to establish and coordinate multiple radio links, potentially across frequency bands such as 5 GHz and 6 GHz. Depending on the implementation, traffic can be distributed across links to increase throughput or moved between links to reduce latency and avoid interference. Earlier Wi-Fi generations generally treated a client's band connection more independently. Dynamic Bandwidth Allocation schedules upstream PON capacity, DSL vectoring mitigates copper-pair crosstalk, and VLAN stacking carries multiple VLAN identifiers in Ethernet frames. Multi-Link Operation requires support from both the access point and client. Actual performance also depends on spectrum availability, channel conditions, device capabilities, regulatory constraints, and the capacity of the access point's wired or wireless backhaul.


NEW QUESTION # 31
In an 802.1X-based subscriber authentication design, which role does the residential gateway normally perform?

Answer: B

Explanation:
The residential gateway normally acts as the 802.1X supplicant. It supplies identity information and participates in the Extensible Authentication Protocol exchange required to obtain network access. The access device or OLT commonly performs the authenticator role, controlling the subscriber-facing port and relaying authentication information between the supplicant and the authentication server. The authentication server, frequently using RADIUS, validates the credentials and returns an authorization result or related policy attributes. The gateway is therefore not itself the RADIUS database or authentication server in this design. A multicast querier performs a separate function by sending IGMP queries to maintain multicast membership information. Before successful authentication, the authenticator generally restricts ordinary subscriber traffic while allowing the authentication exchange required to complete access control.


NEW QUESTION # 32
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