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| Section | Objectives |
|---|---|
| Nokia fixed access portfolio | - FastMile FWA solutions - Home networking devices - Optical Network Terminals (ONTs) - Lightspan FX and MF Optical Line Terminals |
| Fixed network architectures and broadband access | - FTTH and FTTx technologies - Passive Optical Networks (PON) - Fixed Wireless Access (FWA) - Broadband network architecture - Optical Distribution Network (ODN) |
| Service delivery and operations | - Network monitoring and troubleshooting - High-Speed Internet (HSI) - Voice, Internet and IPTV services - Service provisioning |
| Software Defined Access Network (SDAN) | - Altiplano Access Controller - Corteca platform - Subscriber and service management - Network topology and service health |
| Management interfaces and automation | - CLI fundamentals - NETCONF - YANG data models - Telemetry and automation concepts |
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NEW QUESTION # 17
A service provider combines two copper pairs to increase the available DSL rate for one subscriber. Which technology is being used?
Answer: B
Explanation:
DSL bonding combines two or more physical copper pairs into a single logical subscriber connection. Traffic is distributed across the available pairs, allowing the aggregate bitrate to increase, provided the individual lines have suitable quality and compatible performance. Bonding can also provide operational benefits where one pair alone cannot deliver the required service rate. It is different from vectoring, which reduces crosstalk among coordinated copper lines by generating compensating signals. Optical splitting divides optical power in a PON and does not combine copper capacity. Multicast replication creates copies of multicast packets for different receiver paths and is unrelated to DSL transmission capacity. Both ends of a bonded DSL connection must support the applicable bonding method and coordinate traffic across the paired lines.
NEW QUESTION # 18
How does an ADSL connection support simultaneous traditional voice and broadband data over the same copper pair?
Answer: A
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 # 19
What is a typical function of the Network Termination card in a Nokia Lightspan access node?
Answer: B
Explanation:
The Network Termination card provides network-facing connectivity for a Lightspan access node. Its faceplate can contain connectors and optical cages used to connect the node to external aggregation, transport, management, synchronization, or other supported interfaces. The card participates in forwarding traffic between subscriber-facing line termination resources and the upstream network. It is an active component and must not be confused with a passive optical splitter in the outside plant. It also does not provide in-home Wi-Fi directly to subscriber devices; that function belongs to a residential gateway or Wi-Fi access point. Analog telephones are normally connected through voice-capable subscriber equipment, such as an ONT with appropriate telephone interfaces, rather than directly to the Lightspan NT card.
NEW QUESTION # 20
Which Wi-Fi 7 capability allows a compatible device to use more than one frequency-band link as part of the same connection?
Answer: B
NEW QUESTION # 21
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 # 22
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