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| Section | Objectives |
|---|---|
| Broadband Services | - Intent-Based Networking (IBN) - Voice services - Lightspan service components - IPTV services - Intent mapping to network layers - High-speed Internet services - Value-added and triple-play services |
| Access Network | - Quality of Service (QoS) fundamentals - Access network architecture - Optical Line Terminal (OLT) functionality - Multicast protocols for video distribution |
| Introduction to Fixed Networks | - Broadband network fundamentals - FTTx concepts and solutions - Fixed Wireless Access (FWA) - Broadband access services - FTTH concepts and solutions |
| Home Network | - Home network connectivity - Home network devices - Home network device management - Wi-Fi fundamentals |
| Fixed Networks Management | - Corteca home device controller - NETCONF and YANG - IPFIX telemetry collection - Nokia SDAN solution - Altiplano SDAN Controller - NFV and SDN fundamentals |
>> 4A0-F10 Valid Test Objectives <<
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NEW QUESTION # 21
Within the ETSI NFV management and orchestration architecture, which functional block manages virtualized compute, storage, and networking resources?
Answer: D
Explanation:
The Virtualized Infrastructure Manager manages the compute, storage, and networking resources that form the NFV Infrastructure. Its responsibilities can include allocating resources to virtual workloads, tracking available capacity, and controlling the virtualized environment. The Virtual Network Functions Manager has a different role: it manages the lifecycle of VNF instances, including operations such as instantiation, scaling, updating, and termination. Higher-level NFV orchestration coordinates network services and resources across the NFV environment. A traditional Network Management System can perform fault, configuration, accounting, performance, and security management, but it is not the NFV functional block specifically defined to control virtual infrastructure resources. An ONT is subscriber-premises access equipment and is unrelated to NFV infrastructure resource management.
Batch 2: Questions 11-20
NEW QUESTION # 22
Where should multicast traffic ideally be replicated in a bandwidth-efficient access network?
Answer: D
Explanation:
Multicast is bandwidth-efficient because one stream can be transported across shared network sections and replicated only where paths diverge toward interested receivers. Routers and multicast-aware switching functions use membership and forwarding information to determine which interfaces require a copy. This approach avoids sending a separate end-to-end unicast stream for every viewer and avoids flooding the content to subscribers who did not join the group. IGMP reports communicate receiver membership on IPv4 access networks, while IGMP snooping helps Layer 2 devices restrict forwarding to appropriate ports. Replicating content for every possible subscriber at the source would remove much of multicast's scaling advantage. Likewise, transmitting every stream on every access port would waste bandwidth and could expose receivers to large amounts of unwanted traffic.
NEW QUESTION # 23
Which Altiplano intent is used to define the uplink interfaces that connect an OLT toward the aggregation network?
Answer: B
NEW QUESTION # 24
In an 802.1X-based subscriber authentication design, which role does the residential gateway normally perform?
Answer: D
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 # 25
A subscriber installs several coordinated Wi-Fi access points to provide consistent coverage throughout a large home. What type of solution is this?
Answer: B
Explanation:
A Wi-Fi mesh system uses multiple coordinated Wi-Fi nodes or access points to extend wireless coverage across a home or other large area. The nodes operate as part of one managed system and can steer clients or select paths to improve coverage and user experience. This differs from a single Wi-Fi router, which combines routing, switching, and wireless access functions in one device but may not adequately cover a large property. A passive optical network delivers fiber access and does not describe the in-home wireless topology. DSL bonding combines copper pairs, while a virtual network function is a software implementation of a network function running on virtualized infrastructure. Placement, backhaul quality, interference, and radio-resource management all affect mesh performance.
NEW QUESTION # 26
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