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| Section | Objectives |
|---|---|
| Topic 1: Broadband Services | - Intent mapping to network layers - Value-added and triple-play services - Lightspan service components - Voice services - IPTV services - Intent-Based Networking (IBN) - High-speed Internet services |
| Topic 2: Fixed Networks Management | - Corteca home device controller - Nokia SDAN solution - NETCONF and YANG - IPFIX telemetry collection - NFV and SDN fundamentals - Altiplano SDAN Controller |
| Topic 3: Access Network | - Multicast protocols for video distribution - Optical Line Terminal (OLT) functionality - Access network architecture - Quality of Service (QoS) fundamentals |
| Topic 4: Introduction to Fixed Networks | - Broadband access services - FTTx concepts and solutions - Broadband network fundamentals - FTTH concepts and solutions - Fixed Wireless Access (FWA) |
| Topic 5: Home Network | - Home network devices - Home network connectivity - Home network device management - Wi-Fi fundamentals |
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NEW QUESTION # 35
Which transport protocol is commonly used to provide a secure connection for NETCONF sessions?
Answer: D
Explanation:
NETCONF is commonly transported over Secure Shell, which provides encryption, integrity protection, and peer authentication for the management session. After establishing the secure transport connection, the client and server exchange NETCONF capabilities and use RPC messages to retrieve or modify device data. IGMP manages IPv4 multicast group membership and does not provide a secure management transport. ARP resolves IPv4 addresses to Layer 2 hardware addresses within a local network. SIP establishes and manages communication sessions such as voice calls. Although NETCONF can conceptually operate over supported secure transports, NETCONF over SSH is the widely recognized deployment model. Secure transport is particularly important because NETCONF can expose operational information and perform configuration changes that materially affect access-network devices and subscriber services.
NEW QUESTION # 36
Which Wi-Fi 7 capability allows a compatible device to use more than one frequency-band link as part of the same connection?
Answer: D
NEW QUESTION # 37
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: C
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 # 38
An optical link experiences unexpectedly high signal loss immediately after a fiber cable is routed around a very tight corner. What is the most likely cause?
Answer: D
Explanation:
Macrobending occurs when an optical fiber is bent with a radius smaller than its supported minimum bend radius. The excessive bend can cause part of the optical signal to escape from the core, increasing attenuation and reducing the received optical power. This problem can appear after poor cable installation, improper storage, or routing the cable sharply around structural objects. Chromatic dispersion causes different wavelengths or spectral components of an optical pulse to travel at slightly different speeds, but it is not normally triggered by one tight physical corner. DSL crosstalk applies to copper pairs, while Dynamic Bandwidth Allocation controls upstream transmission opportunities in a PON. Correcting the cable routing and respecting the specified bend radius can remove or reduce the loss.
NEW QUESTION # 39
What does hardware abstraction provide in a disaggregated access network?
Answer: D
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 # 40
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