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| Section | Objectives |
|---|---|
| Topic 1: Fixed network architectures and broadband access | - Passive Optical Networks (PON) - Fixed Wireless Access (FWA) - Broadband network architecture - FTTH and FTTx technologies - Optical Distribution Network (ODN) |
| Topic 2: Nokia fixed access portfolio | - FastMile FWA solutions - Optical Network Terminals (ONTs) - Lightspan FX and MF Optical Line Terminals - Home networking devices |
| Topic 3: Management interfaces and automation | - CLI fundamentals - Telemetry and automation concepts - YANG data models - NETCONF |
| Topic 4: Software Defined Access Network (SDAN) | - Network topology and service health - Altiplano Access Controller - Subscriber and service management - Corteca platform |
| Topic 5: Service delivery and operations | - Voice, Internet and IPTV services - High-Speed Internet (HSI) - Network monitoring and troubleshooting - Service provisioning |
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NEW QUESTION # 42
Which characteristic distinguishes G.fast from traditional ADSL technologies?
Answer: B
NEW QUESTION # 43
What is the primary benefit of enabling IGMP snooping on a Layer 2 device carrying IPTV multicast traffic?
Answer: B
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 # 44
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 # 45
Which of the following statements correctly distinguishes traffic shaping from traffic policing?
Answer: D
Explanation:
Traffic shaping regulates an outgoing traffic stream by buffering packets that temporarily exceed the configured rate and transmitting them later. This smooths bursts but can introduce additional latency because packets remain in a queue. Traffic policing checks traffic against configured rate limits without normally delaying nonconforming packets. Depending on the policy, packets exceeding the permitted profile can be dropped or marked with a lower priority. Both mechanisms are QoS tools and are independent of whether the physical access medium is fiber, copper, or wireless. They also do not control multicast membership or VLAN assignment. In a fixed-access network, shaping can help produce a smoother egress rate, while policing can enforce subscriber or service bandwidth limits at an ingress boundary.
NEW QUESTION # 46
What is a key characteristic of software disaggregation in an access network?
Answer: C
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 # 47
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