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| Section | Objectives |
|---|---|
| Topic 1: Service delivery and operations | - Service provisioning - Voice, Internet and IPTV services - Network monitoring and troubleshooting - High-Speed Internet (HSI) |
| Topic 2: Nokia fixed access portfolio | - Optical Network Terminals (ONTs) - Home networking devices - FastMile FWA solutions - Lightspan FX and MF Optical Line Terminals |
| Topic 3: Software Defined Access Network (SDAN) | - Corteca platform - Network topology and service health - Altiplano Access Controller - Subscriber and service management |
| Topic 4: Fixed network architectures and broadband access | - Broadband network architecture - FTTH and FTTx technologies - Passive Optical Networks (PON) - Optical Distribution Network (ODN) - Fixed Wireless Access (FWA) |
| Topic 5: Management interfaces and automation | - CLI fundamentals - NETCONF - YANG data models - Telemetry and automation concepts |
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NEW QUESTION # 24
Which traffic-delivery method is commonly used for a live IPTV channel watched simultaneously by many subscribers?
Answer: B
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 # 25
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 # 26
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 # 27
In a voice service delivered through an ONT, which component commonly provides signaling toward the operator's SIP infrastructure?
Answer: C
Explanation:
A voice-capable ONT commonly contains a SIP agent that handles signaling toward the operator's SIP registrar and proxy infrastructure. An analog telephone can connect to a telephone interface on the ONT, which converts between the analog user interface and the packet-based voice service. Within the access node, voice traffic can be carried through a voice forwarder and an appropriate VPLS toward the aggregation network. A passive optical splitter merely divides optical power and cannot originate or terminate SIP signaling. A Wi-Fi mesh satellite extends wireless coverage, while IGMP snooping manages Layer 2 forwarding for multicast groups. SIP signaling establishes and manages communication sessions, whereas the actual media stream is commonly carried separately using a real-time transport protocol once the call has been established.
NEW QUESTION # 28
In intent-based networking, what does an operator primarily specify through an intent?
Answer: B
Explanation:
An intent describes the desired network outcome or target state rather than requiring the operator to manually enter every device-level command. The intent system maps the requested outcome to the configurations and resources needed on the relevant network elements. It can then compare the intended state with the observed operational state and take corrective action when supported. Intent types, profiles, and associated models provide the logic and parameters required for this translation. An intent does not normally specify the electrical construction of hardware or list every packet to be forwarded. Optical measurements may be used as operational inputs, but they are not the general definition of an intent. This abstraction improves consistency, supports automation, and reduces repetitive device-by-device configuration work.
NEW QUESTION # 29
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