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| Section | Objectives |
|---|---|
| Topic 1: Home Network | - Home devices and connectivity - Wi-Fi fundamentals |
| Topic 2: Broadband Services | - Lightspan service components - Internet, IPTV and voice services |
| Topic 3: Fixed Networks Management | - Netconf/YANG and telemetry - NFV and SDN concepts - Altiplano Software-Defined Access Network (SDAN) |
| Topic 4: Introduction to Fixed Networks | - FTTH, FTTx and FWA solutions - Broadband access fundamentals |
| Topic 5: Access Network | - Access network architecture - OLT functions - Multicast and QoS principles |
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NEW QUESTION # 23
Which Corteca component is intended primarily for use by the subscriber during Wi-Fi installation and management?
Answer: B
Explanation:
The Corteca mobile application provides subscriber-facing capabilities that can support self-installation and home Wi-Fi management. Depending on the enabled service, the subscriber can receive installation guidance, view the home network, manage connected devices, and perform supported troubleshooting or configuration tasks. The service provider uses other Corteca platform components for centralized service management, visibility, and operational control. An OLT network termination card provides access-node network connectivity and is not a subscriber application. An IPFIX collector receives traffic-flow records, while a NETCONF candidate datastore holds proposed device configuration before it is committed. Separating subscriber-facing and operator-facing functions allows the provider to offer controlled self-service capabilities without exposing the complete network-management environment or low-level access-device configuration to the end user.
NEW QUESTION # 24
What is the primary function of the cladding in an optical fiber?
Answer: C
NEW QUESTION # 25
In a voice service delivered through an ONT, which component commonly provides signaling toward the operator's SIP infrastructure?
Answer: A
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 # 26
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 # 27
Which of the following statements correctly distinguishes traffic shaping from traffic policing?
Answer: C
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 # 28
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