Quiz Miercoles

Which of the following ITU-T recommendations defines the OTN frame structure?

• G.694
• G.652
• G.975
• G.709

After signals are transmitted for a certain distance in a WDM system, the optical signal-to-noise ratio (OSNR) at the receiver decreases to a certain extent. Which of the following Is the main cause?

• EDFAs are used.
• Multiplexers and demultiplexers are used.
• New types of optical fibers are not used.
• Fiber attenuation is excessively high.

According to ITU-T G-709, how many ODU2e signals can be multiplexed into one ODU3 signal?

• 1
• 2
• 3
• 4

Which of the following is the process of multiplexing ODU1 signals into ODU2 signals?

• ODU1 -> ODTU12 -> ODTUG2 -> OPU2 -> ODU2
• ODU1 -> ODTUG2 -> ODTU12 -> OPU2 -> ODU2
• ODU1 -> ODTU12 -> OPU2 -> ODTUG2 -> ODU2
• ODU1 -> OPU2 -> ODTU12 -> ODTUG2 -> ODU2

In the NCE deployment solution, the difference between on-premises deployment and private cloud deployment is whether Huawei provides E2E support for software and hardware.

• True
• False

The length of an OTUk (k = 1, 2 or 4) frame is fixed at 4 rows and 4080 columns.

• True
• False

The minimum pipe granularity defined by traditional OTN networks is ODU0, that is, 1.25 Gbit/s. For services with smaller granularities, the resource utilization may be low.

• True
• False

RSOH, MSOH, HPOH, and LPOH implement monitoring functions in the descending order of monitoring scope.

• True
• False

Which of the following units is newly added to Liquid OTN?

• OTU
• OPU
• OSU
• ODU

Which of the following fibers has the dispersion characteristics complying with the following description? The dispersion at 1310 nm is 0 and the typical dispersion coefficient around 1550 nm is 17 ps/nm.km.

• G.652
• G.653
• G.654
• G.655