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| Section | Objectives |
|---|---|
| Topic 1: Fixed Networks Management | - Altiplano SDAN Controller - Corteca home device controller - NETCONF and YANG - IPFIX telemetry collection - NFV and SDN fundamentals - Nokia SDAN solution |
| Topic 2: Access Network | - Multicast protocols for video distribution - Optical Line Terminal (OLT) functionality - Quality of Service (QoS) fundamentals - Access network architecture |
| Topic 3: Introduction to Fixed Networks | - Broadband network fundamentals - Broadband access services - FTTH concepts and solutions - Fixed Wireless Access (FWA) - FTTx concepts and solutions |
| Topic 4: Broadband Services | - Voice services - IPTV services - High-speed Internet services - Intent mapping to network layers - Lightspan service components - Value-added and triple-play services - Intent-Based Networking (IBN) |
| Topic 5: Home Network | - Home network devices - Home network device management - Home network connectivity - Wi-Fi fundamentals |
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NEW QUESTION # 10
What is a principal responsibility of the NFV Orchestrator in an NFV environment?
Answer: C
Explanation:
The NFV Orchestrator coordinates the lifecycle of network services composed of one or more virtualized network functions and helps coordinate the infrastructure resources required by those services. It can work with Virtual Network Functions Managers and Virtualized Infrastructure Managers during service instantiation, scaling, modification, and termination. The VNFM focuses on the lifecycle of VNF instances, while the VIM manages virtualized compute, storage, and networking resources. The NFV Orchestrator does not terminate GPON optical signals, manage individual home Wi-Fi radio channels as its primary function, or perform physical fiber installation. Its higher-level coordination role helps translate a network-service definition into the deployment and resource actions necessary to create and maintain that service within the virtualized environment.
NEW QUESTION # 11
What is the primary function of the cladding in an optical fiber?
Answer: C
Explanation:
The cladding surrounds the optical fiber core and has a lower refractive index than the core. This difference causes light to remain confined within the core through total internal reflection, allowing the optical signal to travel along the fiber. The cladding does not generate or amplify light; transmitters and optical amplifiers perform those functions. It also does not divide an optical signal among subscribers, which is the role of a passive optical splitter in an Optical Distribution Network. Outside the cladding, protective coatings and buffers help protect the glass from moisture, bending, and mechanical damage. The core and cladding therefore perform essential optical functions, while the surrounding protective layers primarily provide physical protection.
NEW QUESTION # 12
Which Altiplano intent is used to define the uplink interfaces that connect an OLT toward the aggregation network?
Answer: D
Explanation:
The uplink-connection intent defines how an OLT connects toward the aggregation or transport network. It is used to configure relevant uplink resources, which can include network-facing interfaces and associated parameters supported by the device and intent model. This intent is distinct from the broader device intent and device-configuration information used to identify and configure the particular access node and its assigned profiles. Subscriber authentication, Wi-Fi radio operation, and multicast membership reporting are separate functional areas and are not substitutes for the OLT uplink-connection intent. By representing uplink connectivity as an intent, Altiplano can translate the desired connection into lower-level device configuration and apply it consistently through model-driven management. The resulting configuration must still match the capabilities and physical resources available on the selected OLT.
NEW QUESTION # 13
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?
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 # 14
Which Lightspan interface type normally connects an access node directly to subscriber-facing equipment?
Answer: B
Explanation:
A User Network Interface is the subscriber-facing interface through which an access node connects to customer-side equipment or services. Depending on the access technology, this relationship can involve ONTs, subscriber ports, or other access termination functions. A Network-to-Network Interface connects the access node toward another network device, typically the Ethernet aggregation or transport network. A subtending interface is used when one access node is connected through another access node, allowing the downstream node's traffic to reach the aggregation network through the upstream node. A loopback interface is a logical interface generally used for management, routing identification, or testing and is not a physical subscriber connection. Correctly distinguishing UNI, NNI, and subtending roles is essential when interpreting an access-node datapath.
NEW QUESTION # 15
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