Online Access Free 4A0-255 Practice Test

Consider the exhibit that shows the OTN frame structure . Which of the following sets of label is correct?

• A.OUT: B: ODU: C: OPU: D: OPU
• B.ODU: B: OYU: C: OPU: D: OPU
• C.OPU: B: OTU: C: ODU: D: OPU
• D.OUT: B: ODU: C: OPU: D: OCH

What does an OPU tributary slot contain, when multiplexing OTN frames?

• A.An OPU.
• B.An ODU.
• C.An OUT.
• D.An OH byte

Which of the following is NOTan advantage of super-channels?

• A.Improved spectral efficiency
• B.Simplified management of the carriers
• C.Impairment-free transmission
• D.Narrower spacing between carries of the super-channel

Which of the following statements about the Decision (HDEFC) decoding and soft decision FEC (SDFEC) decoding is FALSE?

• A.HDFEC injects less latency into the decoding process than SDFEC.
• B.HDFEC discards bits earlier in the decoding process than SDEFC.
• C.HDFEC provides a higher coding gain than SDEFC
• D.HDFEC uses fewer thresholds than SDEFC.

What is precision Time Protocol (PTP) designed for?

• A.Shortest path discovery
• B.Packet-based timing distribution
• C.Precise time measurements
• D.Synchronization of encryption entities