최신 4A0-F10 무료덤프 - Nokia Fixed Networks Fundamentals

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

B. G.fast operates only over passive optical splitters.

C. 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.

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

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

A. Policing

B. Shaping

C. Classification

D. Optical amplification

A. Multi-Link Operation

B. VLAN stacking

C. DSL vectoring

D. Dynamic Bandwidth Allocation

A. It converts multicast packets into unicast packets at the video server.

B. It prevents all hosts from sending IGMP membership reports.

C. It replaces the multicast routing function performed by upstream routers.

D. It forwards multicast traffic only toward ports with interested receivers.

A. Unicast only, with no packet replication in the network

B. Separate analog transmission over every copper pair

C. NETCONF notifications

D. Multicast delivery