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| Section | Objectives |
|---|---|
| Fixed network architectures and broadband access | - FTTH and FTTx technologies - Fixed Wireless Access (FWA) - Passive Optical Networks (PON) - Broadband network architecture - Optical Distribution Network (ODN) |
| Software Defined Access Network (SDAN) | - Corteca platform - Subscriber and service management - Altiplano Access Controller - Network topology and service health |
| Service delivery and operations | - Service provisioning - Voice, Internet and IPTV services - High-Speed Internet (HSI) - Network monitoring and troubleshooting |
| Nokia fixed access portfolio | - Lightspan FX and MF Optical Line Terminals - FastMile FWA solutions - Optical Network Terminals (ONTs) - Home networking devices |
| Management interfaces and automation | - CLI fundamentals - YANG data models - NETCONF - Telemetry and automation concepts |
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NEW QUESTION # 14
Which traffic-delivery method is commonly used for a live IPTV channel watched simultaneously by many subscribers?
Answer: C
Explanation:
Live IPTV channels are commonly distributed using multicast because many subscribers may request the same content at the same time. The network carries a shared stream across common paths and replicates packets only where delivery paths branch toward participating receivers. Subscribers signal membership using protocols such as IGMP. This approach is more bandwidth-efficient than delivering a separate unicast copy from the source to every viewer. Video on Demand is commonly delivered using unicast because each viewer may start, pause, or seek through different content independently. NETCONF notifications carry management events rather than television content. IPTV is packet-based and does not require a separate analog transmission for every copper pair. Effective multicast deployment also depends on correct group control, snooping, routing, QoS, and service-forwarding configuration.
NEW QUESTION # 15
Why does an access automation platform store operational state, logs, and telemetry in a common data lake?
Answer: C
Explanation:
A common data lake provides a centralized location for operational state, telemetry, logs, alarms, and other information collected from access-network devices and applications. Centralized data enables monitoring tools to correlate information across multiple nodes, evaluate network health, identify trends, and support analytics-driven automation. Historical data can also assist with troubleshooting, performance baselining, capacity planning, and detection of abnormal behavior. The data lake does not replace physical access devices; it stores information describing their operation. It is intended to make relevant information available to authorized applications rather than prevent historical access. It also does not automatically transform subscriber unicast traffic into multicast. Forwarding behavior is controlled through service and network configuration, whereas the data lake supports visibility, analysis, and operational decision-making.
NEW QUESTION # 16
Within the ETSI NFV management and orchestration architecture, which functional block manages virtualized compute, storage, and networking resources?
Answer: A
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 # 17
What is the primary purpose of Zero-Touch Provisioning for a newly installed residential Wi-Fi gateway?
Answer: C
Explanation:
Zero-Touch Provisioning allows a newly connected gateway or Wi-Fi device to discover the appropriate management environment and obtain its required configuration with minimal manual intervention. This reduces installation time, lowers the chance of configuration errors, and makes subscriber self-installation more practical. In a managed home-network solution, the device can be associated with the subscriber, receive service parameters, and become visible to the provider's management platform. Zero-Touch Provisioning does not mean that no configuration exists; it means the configuration is delivered automatically instead of being entered locally by a technician. It also does not prevent management communication or turn an active gateway into a passive device. Successful provisioning still depends on network connectivity, device identity, authorization, and compatible management procedures.
NEW QUESTION # 18
Which of the following statements correctly describes downstream and upstream transmission in a GPON network?
Answer: A
Explanation:
GPON uses different transmission methods in the downstream and upstream directions. In the downstream direction, the OLT sends a continuous stream through the passive optical splitter. This stream reaches every connected ONT, but each ONT processes only the frames intended for it. Encryption can protect subscriber traffic from other ONTs on the same PON. In the upstream direction, several ONTs share the same optical fiber and cannot transmit simultaneously without coordination. The OLT therefore assigns transmission opportunities using Time Division Multiple Access. Dynamic Bandwidth Allocation can adjust these upstream grants according to traffic demand and service requirements. Separate fibers are not required for each subscriber because GPON commonly uses wavelength separation to carry downstream and upstream traffic over the same fiber infrastructure.
NEW QUESTION # 19
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