最新 [2026年08月05日] Nokia 4A0-F10リアル試験問題集PDF [Q20-Q44]

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最新 [2026年08月05日] Nokia 4A0-F10リアル試験問題集PDF

4A0-F10練習テスト問題は更新された43問題あります

新問題 20
What is the primary purpose of vectoring in a DSL access network?

To combine two or more copper pairs into one logical connection

To cancel far-end crosstalk among coordinated copper lines

To divide optical power among multiple subscribers

To replace frequency-division duplexing with wavelength-division multiplexing

新問題 21
Which Wi-Fi 7 capability allows a compatible device to use more than one frequency-band link as part of the same connection?

Dynamic Bandwidth Allocation

Multi-Link Operation

DSL vectoring

VLAN stacking

新問題 22
Which Altiplano intent is used to define the uplink interfaces that connect an OLT toward the aggregation network?

Uplink-connection intent

Subscriber-authentication intent

Wi-Fi-radio intent

Multicast-report intent

新問題 23
A network controller must modify configuration data stored on a NETCONF-capable access device. Which NETCONF operation is designed for this purpose?

<get-config>

<edit-config>

<close-session>

<kill-session>

新問題 24
A provider wants to separate every subscriber’s traffic throughout the access network, even when subscribers use the same service. Which VLAN model best meets this requirement?

VLAN per subscriber

VLAN per service

One untagged VLAN for the entire access network

One VLAN for every multicast channel

新問題 25
Within the ETSI NFV management and orchestration architecture, which functional block manages virtualized compute, storage, and networking resources?

Virtualized Infrastructure Manager

Virtual Network Functions Manager

Network Management System

Optical Network Termination

新問題 26
Where should multicast traffic ideally be replicated in a bandwidth-efficient access network?

At every receiver before the multicast stream enters the network

Only at points where the delivery path branches toward interested receivers

At the source once for every possible subscriber, including nonmembers

On every access port regardless of multicast group membership

新問題 27
Which Lightspan interface type normally connects an access node directly to subscriber-facing equipment?

User Network Interface

Network-to-Network Interface

Subtending interface

Management loopback interface

新問題 28
Which of the following statements correctly describes downstream and upstream transmission in a GPON network?

Downstream traffic uses time slots assigned individually by each ONT, while upstream traffic is broadcast to all ONTs.

Both downstream and upstream traffic are continuously broadcast without coordination by the OLT.

Downstream traffic is broadcast from the OLT toward the ONTs, while upstream transmissions use OLT-controlled time slots.

Downstream and upstream traffic require separate optical fibers between the OLT and each ONT.

新問題 29
Which characteristic distinguishes G.fast from traditional ADSL technologies?

G.fast operates only over passive optical splitters.

G.fast commonly uses high frequencies and time-division duplexing over short copper loops.

G.fast requires a separate copper pair for upstream and downstream traffic.

G.fast carries only voice services and does not support broadband data.

fast is designed to deliver high broadband rates over relatively short copper loops, frequently using existing building or drop wiring. It uses a much wider and higher-frequency spectrum than traditional ADSL and commonly employs Time Division Duplexing. With TDD, upstream and downstream transmission use the same frequency spectrum during different time intervals. The upstream-to-downstream capacity ratio can therefore be adjusted through the TDD configuration. Higher frequencies can support greater capacity but experience substantial attenuation over distance, which is why G.fast is best suited to short loops. It does not operate through passive optical splitters, although fiber may be deployed close to the subscriber before the final copper segment. G.fast also supports broadband services rather than voice-only delivery.

新問題 30
In a Lightspan High-Speed Internet service architecture, what is the role of the HSI VPLS on the IHUB?

It switches HSI traffic between service forwarders and network-facing interfaces.

It converts optical signals into analog telephone signals.

It assigns Wi-Fi channels to residential gateways.

It performs DSL crosstalk cancellation on copper pairs.

新問題 31
Which Altiplano intent is used to define the uplink interfaces that connect an OLT toward the aggregation network?

Wi-Fi-radio intent

Subscriber-authentication intent

Uplink-connection intent

Multicast-report intent

新問題 32
Which YANG node type represents multiple scalar values under the same node name without allowing child nodes?

Container

List

Leaf-list

Choice

新問題 33
What is the primary function of the cladding in an optical fiber?

To convert electrical signals into optical signals

To keep light confined within the fiber core

To amplify optical signals over long distances

To divide one optical signal among multiple subscribers

新問題 34
What is a principal responsibility of the NFV Orchestrator in an NFV environment?

Coordinating network-service lifecycle activities and virtualized resources

Converting GPON optical signals into subscriber Ethernet signals

Assigning Wi-Fi channels independently on every home device

Performing physical fiber splicing in the outside plant

新問題 35
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?

It acts as a DHCP server and assigns private IP addresses to home devices.

It acts only as a DHCP relay and never maintains address information.

It acts as a DHCP client for every device connected to the LAN.

It disables local addressing and assigns public addresses directly from the OLT.

新問題 36
Which architectural principle is fundamental to Software-Defined Networking?

Separating the control plane from the data-forwarding plane

Requiring every forwarding device to make all policy decisions independently

Removing programmability and APIs from network management

Combining all hardware and software into one fixed proprietary component