1.Click the Task button. Match the appropriate term to each formula.

　　Drag and drop question. Drag the items to the proper locations.

　　Correct Answers:

　　2.Click the Task button. Match the component to its description.

　　Drag and drop question. Drag the items to the proper locations.

　　Correct Answers:

　　3.What is the difference between the transmitted power and the sensitivity of the receiver?

　　A: OSNR

　　B: dispersion

　　C: attenuation

　　D: power budget

　　E: amplifier spacing

　　F: four wave mixing

　　Correct Answers:　D

　　4.In order to avoid misconnections due to a failed node in an MS-SPRing, Alarm Indication Signals (AISs) are sent on every channel normally terminating in that node. What is the name of this process?

　　A: bridging

　　B: switching

　　C: squelching

　　D: nodal bypass

　　E: node failure insertion