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| Section | Objectives |
|---|---|
| Broadband Services | - Voice services - High-speed Internet services - Value-added and triple-play services - IPTV services - Lightspan service components - Intent-Based Networking (IBN) - Intent mapping to network layers |
| Access Network | - Optical Line Terminal (OLT) functionality - Access network architecture - Quality of Service (QoS) fundamentals - Multicast protocols for video distribution |
| Fixed Networks Management | - Nokia SDAN solution - Altiplano SDAN Controller - NFV and SDN fundamentals - NETCONF and YANG - IPFIX telemetry collection - Corteca home device controller |
| Home Network | - Home network device management - Home network connectivity - Wi-Fi fundamentals - Home network devices |
| Introduction to Fixed Networks | - FTTx concepts and solutions - Fixed Wireless Access (FWA) - Broadband access services - FTTH concepts and solutions - Broadband network fundamentals |
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NEW QUESTION # 10
What is a key characteristic of software disaggregation in an access network?
Answer: B
Explanation:
Software disaggregation separates access-network software into modules, with each module responsible for a particular functional area. Defined interfaces allow these modules to interact with one another, with higher-level applications, and with abstracted hardware resources. This architecture can improve development flexibility, automation, scalability, and the ability to introduce new functions without replacing an entire vertically integrated platform. It does not mean that all physical constraints disappear or that every module can operate on every device without adaptation. Embedding every function permanently in one appliance describes a tightly integrated architecture rather than disaggregation. APIs are important because they enable communication and programmability between components. Passive optical splitters cannot execute software because they contain no powered processing or control functions.
NEW QUESTION # 11
A subscriber installs several coordinated Wi-Fi access points to provide consistent coverage throughout a large home. What type of solution is this?
Answer: D
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 # 12
What does hardware abstraction provide in a disaggregated access network?
Answer: B
Explanation:
Hardware abstraction separates higher-level control and management functions from many platform-specific implementation details. It can provide controllers and applications with consistent models or interfaces for operating different supported hardware platforms. This makes automation, service development, and multivendor management more practical because applications do not need to reproduce every low-level procedure for each device. Abstraction does not require all platforms to contain identical components, nor does it eliminate actual differences in capacity, features, or operational constraints. Those differences must still be represented where relevant. It also does not make active access equipment passive. In a disaggregated access architecture, software is divided into functional modules, and standardized or well-defined interfaces allow those modules to interact with abstracted device resources and with higher-level orchestration or assurance applications.
NEW QUESTION # 13
Why does an access automation platform store operational state, logs, and telemetry in a common data lake?
Answer: A
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 # 14
How does an ADSL connection support simultaneous traditional voice and broadband data over the same copper pair?
Answer: B
Explanation:
ADSL uses frequency-division techniques to place traditional analog voice and broadband data in different portions of the available copper-pair spectrum. The lower-frequency range is reserved for voice, while higher-frequency ranges carry upstream and downstream DSL data. Filters or splitters separate these frequency ranges at the subscriber and network sides, allowing a telephone call and an Internet session to operate simultaneously. The services are not required to alternate in time, and an optical wavelength is not involved because ADSL operates over copper. GPON time-slot scheduling applies to upstream transmissions from ONTs on a passive optical network, not to ADSL voice separation. Line quality, loop length, attenuation, and interference affect the data rate that ADSL can achieve.
NEW QUESTION # 15
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