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| Section | Objectives |
|---|---|
| Broadband Services | - Intent mapping to network layers - IPTV services - Intent-Based Networking (IBN) - Voice services - High-speed Internet services - Value-added and triple-play services - Lightspan service components |
| Introduction to Fixed Networks | - FTTx concepts and solutions - Broadband access services - Broadband network fundamentals - Fixed Wireless Access (FWA) - FTTH concepts and solutions |
| Fixed Networks Management | - IPFIX telemetry collection - Corteca home device controller - NETCONF and YANG - NFV and SDN fundamentals - Nokia SDAN solution - Altiplano SDAN Controller |
| Access Network | - Optical Line Terminal (OLT) functionality - Quality of Service (QoS) fundamentals - Access network architecture - Multicast protocols for video distribution |
| Home Network | - Home network devices - Wi-Fi fundamentals - Home network device management - Home network connectivity |
>> Exam 4A0-F10 Lab Questions <<
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NEW QUESTION # 28
Which component of a typical Optical Distribution Network requires no electrical power to perform its primary function?
Answer: C
Explanation:
A passive optical splitter divides an incoming optical signal into multiple output paths without requiring electrical power. It is a fundamental component of the Optical Distribution Network connecting an OLT to multiple ONTs or ONUs. The splitter does not regenerate, amplify, or actively switch the optical signal. Consequently, splitting introduces optical loss that must be considered when calculating the PON power budget. The OLT and ONT are active devices because they require power to transmit, receive, process, and convert signals. A residential gateway also requires power to provide functions such as routing, firewall enforcement, DHCP, Ethernet switching, and Wi-Fi connectivity. The use of passive splitters reduces the need for powered equipment in the outside plant, which can simplify field maintenance and lower operational costs.
NEW QUESTION # 29
Which transport protocol is commonly used to provide a secure connection for NETCONF sessions?
Answer: B
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 # 30
A residential gateway ONT provides routed Internet access to devices in a subscriber's home. Which DHCP role does it normally perform on the home LAN?
Answer: B
Explanation:
A Layer 3 residential gateway normally operates as a DHCP server on the subscriber's home LAN. It assigns private IP addresses and other configuration information, such as the default gateway and DNS server addresses, to connected devices. On its network-facing WAN interface, the gateway may operate as a DHCP client to obtain service parameters from the operator's network. These two DHCP roles must not be confused. The gateway also commonly performs routing, Network Address Translation, firewall enforcement, and local Ethernet or Wi-Fi connectivity. The OLT transports and controls subscriber access traffic but does not normally allocate private LAN addresses directly to individual home devices. This architecture separates the operator-facing connection from the subscriber's private local network and allows multiple home devices to share the broadband service.
NEW QUESTION # 31
What is the primary function of the cladding in an optical fiber?
Answer: D
NEW QUESTION # 32
In intent-based networking, what does an operator primarily specify through an intent?
Answer: D
Explanation:
An intent describes the desired network outcome or target state rather than requiring the operator to manually enter every device-level command. The intent system maps the requested outcome to the configurations and resources needed on the relevant network elements. It can then compare the intended state with the observed operational state and take corrective action when supported. Intent types, profiles, and associated models provide the logic and parameters required for this translation. An intent does not normally specify the electrical construction of hardware or list every packet to be forwarded. Optical measurements may be used as operational inputs, but they are not the general definition of an intent. This abstraction improves consistency, supports automation, and reduces repetitive device-by-device configuration work.
NEW QUESTION # 33
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