Online Access Free 4A0-F10 Exam Questions

Which of the following statements correctly distinguishes traffic shaping from traffic policing?

• A.Shaping always drops excess traffic immediately, while policing delays it in a queue.
• B.Shaping buffers excess traffic, while policing can drop or remark nonconforming traffic.
• C.Shaping selects multicast groups, while policing assigns subscriber VLANs.
• D.Shaping is applied only to optical signals, while policing is applied only to copper signals.

A YANG model specifies that a configuration leaf can contain an integer from 1 through 4094. What is the principal benefit of this restriction?

• A.It enables configuration values to be validated against the defined data model.
• B.It prevents the leaf from being accessed through NETCONF.
• C.It allows invalid values to be corrected automatically by the optical splitter.
• D.It converts the integer into an Ethernet frame.

What does hardware abstraction provide in a disaggregated access network?

• A.A consistent control interface across different underlying hardware platforms
• B.Direct conversion of every physical access node into a passive device
• C.A requirement that every access node use identical physical components
• D.Elimination of all device-specific capabilities and operational limits

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

• A.List
• B.Leaf-list
• C.Container
• D.Choice

Which characteristic distinguishes G.fast from traditional ADSL technologies?

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