4A0-F10 試験問題を無料オンラインアクセス

What does hardware abstraction provide in a disaggregated access network?

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

Which traffic-delivery method is commonly used for a live IPTV channel watched simultaneously by many subscribers?

• A.Unicast only, with no packet replication in the network
• B.Separate analog transmission over every copper pair
• C.Multicast delivery
• D.NETCONF notifications

What is a key characteristic of software disaggregation in an access network?

• A.Passive optical splitters execute the access-control software.
• B.Network software functions are separated into distinct modules with defined interfaces.
• C.Every control and forwarding function is permanently embedded in one hardware appliance.
• D.All network-management APIs are removed from the access architecture.

Which characteristic distinguishes G.fast from traditional ADSL technologies?

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

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

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