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| Section | Objectives |
|---|---|
| Broadband Services | - IPTV services - Lightspan service components - Intent-Based Networking (IBN) - Intent mapping to network layers - Value-added and triple-play services - High-speed Internet services - Voice services |
| Fixed Networks Management | - Nokia SDAN solution - Corteca home device controller - Altiplano SDAN Controller - IPFIX telemetry collection - NETCONF and YANG - NFV and SDN fundamentals |
| Access Network | - Access network architecture - Multicast protocols for video distribution - Quality of Service (QoS) fundamentals - Optical Line Terminal (OLT) functionality |
| Introduction to Fixed Networks | - Broadband network fundamentals - Fixed Wireless Access (FWA) - Broadband access services - FTTH concepts and solutions - FTTx concepts and solutions |
| Home Network | - Home network devices - Home network device management - Wi-Fi fundamentals - Home network connectivity |
>> 4A0-F10 Latest Practice Questions <<
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NEW QUESTION # 25
Which transport protocol is commonly used to provide a secure connection for NETCONF sessions?
Answer: C
Explanation:
NETCONF is commonly transported over Secure Shell, which provides encryption, integrity protection, and peer authentication for the management session. After establishing the secure transport connection, the client and server exchange NETCONF capabilities and use RPC messages to retrieve or modify device data. IGMP manages IPv4 multicast group membership and does not provide a secure management transport. ARP resolves IPv4 addresses to Layer 2 hardware addresses within a local network. SIP establishes and manages communication sessions such as voice calls. Although NETCONF can conceptually operate over supported secure transports, NETCONF over SSH is the widely recognized deployment model. Secure transport is particularly important because NETCONF can expose operational information and perform configuration changes that materially affect access-network devices and subscriber services.
NEW QUESTION # 26
Why must a managed ONT or residential gateway be reachable before an Auto Configuration Server can provision it using TR-069?
Answer: A
Explanation:
TR-069 enables remote management through communication between customer-premises equipment and an Auto Configuration Server. The device must be powered, operational, and able to establish or participate in a management session before configuration parameters, software information, diagnostics, or status data can be exchanged. An ACS cannot provision a device that is completely offline because no active communication path exists. TR-069 does not configure passive splitters, which contain no management processor or configurable service logic. The managed device can be located at the subscriber premises and does not need to be inside the central office. Communication is carried over the device's network connection rather than exclusively through an OLT serial console. Authentication and protected transport help secure management exchanges between the device and the ACS.
NEW QUESTION # 27
Which Altiplano intent is used to define the uplink interfaces that connect an OLT toward the aggregation network?
Answer: B
NEW QUESTION # 28
Which of the following statements correctly describes downstream and upstream transmission in a GPON network?
Answer: B
Explanation:
GPON uses different transmission methods in the downstream and upstream directions. In the downstream direction, the OLT sends a continuous stream through the passive optical splitter. This stream reaches every connected ONT, but each ONT processes only the frames intended for it. Encryption can protect subscriber traffic from other ONTs on the same PON. In the upstream direction, several ONTs share the same optical fiber and cannot transmit simultaneously without coordination. The OLT therefore assigns transmission opportunities using Time Division Multiple Access. Dynamic Bandwidth Allocation can adjust these upstream grants according to traffic demand and service requirements. Separate fibers are not required for each subscriber because GPON commonly uses wavelength separation to carry downstream and upstream traffic over the same fiber infrastructure.
NEW QUESTION # 29
What is a principal responsibility of the NFV Orchestrator in an NFV environment?
Answer: C
Explanation:
The NFV Orchestrator coordinates the lifecycle of network services composed of one or more virtualized network functions and helps coordinate the infrastructure resources required by those services. It can work with Virtual Network Functions Managers and Virtualized Infrastructure Managers during service instantiation, scaling, modification, and termination. The VNFM focuses on the lifecycle of VNF instances, while the VIM manages virtualized compute, storage, and networking resources. The NFV Orchestrator does not terminate GPON optical signals, manage individual home Wi-Fi radio channels as its primary function, or perform physical fiber installation. Its higher-level coordination role helps translate a network-service definition into the deployment and resource actions necessary to create and maintain that service within the virtualized environment.
NEW QUESTION # 30
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