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| Section | Objectives |
|---|---|
| Topic 1: Management interfaces and automation | - YANG data models - NETCONF - Telemetry and automation concepts - CLI fundamentals |
| Topic 2: Nokia fixed access portfolio | - Optical Network Terminals (ONTs) - FastMile FWA solutions - Home networking devices - Lightspan FX and MF Optical Line Terminals |
| Topic 3: Software Defined Access Network (SDAN) | - Network topology and service health - Altiplano Access Controller - Corteca platform - Subscriber and service management |
| Topic 4: Fixed network architectures and broadband access | - Fixed Wireless Access (FWA) - Broadband network architecture - Optical Distribution Network (ODN) - FTTH and FTTx technologies - Passive Optical Networks (PON) |
| Topic 5: Service delivery and operations | - Voice, Internet and IPTV services - Network monitoring and troubleshooting - Service provisioning - High-Speed Internet (HSI) |
>> 4A0-F10 Exam Cram Questions <<
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NEW QUESTION # 16
Which YANG node type represents multiple scalar values under the same node name without allowing child nodes?
Answer: D
Explanation:
A YANG leaf-list represents a sequence of scalar values of the same defined type. Like a leaf, each value is terminal and cannot contain child nodes. However, unlike a single leaf, a leaf-list can have multiple entries. A YANG list also supports multiple instances, but each list entry can contain child nodes and is normally identified by one or more key leaves. A container groups related child nodes but does not itself represent a repeated collection of scalar values. A choice defines alternative branches in a data model, allowing one set of nodes from the available cases to be selected. Correctly distinguishing these node types is important when interpreting YANG schemas used to configure and monitor access devices through model-driven management interfaces.
NEW QUESTION # 17
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 # 18
What is the primary benefit of enabling IGMP snooping on a Layer 2 device carrying IPTV multicast traffic?
Answer: C
Explanation:
IGMP snooping allows a Layer 2 device to examine IGMP messages exchanged between multicast receivers and the multicast router or querier. From these messages, the device learns which ports lead to hosts that have joined particular multicast groups. It can then forward each multicast stream only to the relevant ports instead of flooding it throughout the broadcast domain. This conserves access bandwidth and prevents subscribers from receiving unnecessary IPTV traffic. IGMP snooping does not replace multicast routing, which remains a Layer 3 function. It also does not prevent hosts from sending membership reports; those reports are essential for learning group membership. The feature is particularly valuable in fixed-access IPTV deployments where several high-bitrate channels may be transported across shared aggregation and subscriber-facing infrastructure.
NEW QUESTION # 19
Which Altiplano intent is used to define the uplink interfaces that connect an OLT toward the aggregation network?
Answer: A
NEW QUESTION # 20
A QoS policy examines a packet's markings and assigns it to a forwarding class. Which QoS function is being performed?
Answer: B
Explanation:
Classification examines packet information and determines how the packet should be treated by the QoS system. The decision can use fields such as VLAN priority, Differentiated Services Code Point, protocol information, or interface context. After classification, the packet is assigned to an appropriate forwarding class and queue so that scheduling, congestion management, and other policies can provide the intended treatment. Shaping controls an outgoing rate by buffering excess traffic, while policing enforces a traffic profile by dropping or remarking nonconforming packets. Optical amplification increases optical signal power and is unrelated to packet classification. Effective classification is essential when a fixed-access network carries services with different requirements, such as voice, IPTV, management traffic, and best-effort Internet access.
NEW QUESTION # 21
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