Nokia Fixed Networks Fundamentals : 4A0-F10 exam

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Nokia 4A0-F10 Exam Syllabus Topics:

Nokia Fixed Networks Fundamentals Sample Questions:

1. Which characteristic distinguishes G.fast from traditional ADSL technologies?

A) G.fast operates only over passive optical splitters.
B) G.fast requires a separate copper pair for upstream and downstream traffic.
C) G.fast carries only voice services and does not support broadband data.
D) G.fast commonly uses high frequencies and time-division duplexing over short copper loops.
E) 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.

2. Why must a managed ONT or residential gateway be reachable before an Auto Configuration Server can provision it using TR-069?

A) TR-069 can configure only devices that are physically inside the central office.
B) TR-069 communicates exclusively through an OLT serial console.
C) TR-069 requires an active management session with the device.
D) TR-069 writes configuration directly to a passive splitter.

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

A) It switches HSI traffic between service forwarders and network-facing interfaces.
B) It performs DSL crosstalk cancellation on copper pairs.
C) It assigns Wi-Fi channels to residential gateways.
D) It converts optical signals into analog telephone signals.

4. What is the primary benefit of enabling IGMP snooping on a Layer 2 device carrying IPTV multicast traffic?

A) It replaces the multicast routing function performed by upstream routers.
B) It prevents all hosts from sending IGMP membership reports.
C) It converts multicast packets into unicast packets at the video server.
D) It forwards multicast traffic only toward ports with interested receivers.

5. In a voice service delivered through an ONT, which component commonly provides signaling toward the operator's SIP infrastructure?

A) Passive optical splitter
B) Wi-Fi mesh satellite
C) SIP agent on the ONT
D) IGMP snooping process

Solutions: