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| Section | Objectives |
|---|---|
| Management interfaces and automation | - Telemetry and automation concepts - YANG data models - NETCONF - CLI fundamentals |
| Fixed network architectures and broadband access | - Fixed Wireless Access (FWA) - Broadband network architecture - FTTH and FTTx technologies - Passive Optical Networks (PON) - Optical Distribution Network (ODN) |
| Service delivery and operations | - Network monitoring and troubleshooting - Service provisioning - High-Speed Internet (HSI) - Voice, Internet and IPTV services |
| Software Defined Access Network (SDAN) | - Corteca platform - Subscriber and service management - Network topology and service health - Altiplano Access Controller |
| Nokia fixed access portfolio | - FastMile FWA solutions - Optical Network Terminals (ONTs) - Home networking devices - Lightspan FX and MF Optical Line Terminals |
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NEW QUESTION # 29
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 # 30
In a GPON system using Dynamic Bandwidth Allocation, which device determines when an ONT may transmit upstream traffic?
Answer: B
Explanation:
The OLT controls upstream access to the shared GPON medium. Multiple ONTs use the same upstream wavelength, so uncoordinated transmissions could overlap and cause collisions. Through Dynamic Bandwidth Allocation, the OLT evaluates bandwidth requirements and assigns upstream transmission grants to the ONTs. These grants specify when an ONT can transmit and how much upstream capacity it may use. Traffic containers, or T-CONTs, help represent different upstream traffic and service requirements. The passive splitter cannot schedule traffic because it has no processing capability. The residential gateway handles subscriber-side functions, while an aggregation switch forwards Ethernet traffic beyond the access network. Centralized upstream scheduling enables efficient bandwidth sharing and helps the operator support different service priorities and performance commitments across subscribers.
NEW QUESTION # 31
Which characteristic distinguishes G.fast from traditional ADSL technologies?
Answer: E
NEW QUESTION # 32
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 # 33
Which component of a typical Optical Distribution Network requires no electrical power to perform its primary function?
Answer: A
Explanation:
A passive optical splitter divides an incoming optical signal into multiple output paths without requiring electrical power. It is a fundamental component of the Optical Distribution Network connecting an OLT to multiple ONTs or ONUs. The splitter does not regenerate, amplify, or actively switch the optical signal. Consequently, splitting introduces optical loss that must be considered when calculating the PON power budget. The OLT and ONT are active devices because they require power to transmit, receive, process, and convert signals. A residential gateway also requires power to provide functions such as routing, firewall enforcement, DHCP, Ethernet switching, and Wi-Fi connectivity. The use of passive splitters reduces the need for powered equipment in the outside plant, which can simplify field maintenance and lower operational costs.
NEW QUESTION # 34
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