A.2
B.3
C.4
D.20
E.22
F.24
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A. VT circuits
B. STS circuits
C. VT tunnel circuits
D. 1:1 protection circuits
E. 1:N protection circuits
Click the Exhibit button. Given the information shown in the exhibit, when creating 2 DS1 circuits, how many STS ports are used on the VT1.5 matrix at Node 1 as VT circuits and how many are used after using VT tunnels?()
A.2;0
B.3;2
C.3;5
D.4;0
E.6;0
F.6;2
A. Slot 2 and Slot 4
B. Slot 4 and Slot 6
C. Slots 5 or 13 only
D. Slot 16 and Slot 17
Click the Exhibit button. Which type of protection is shown in the exhibit?()
A.1+0
B.1+1
C.1:1
D.1:N
A.0
B.1
C.2
D.3
E.4
最新試題
In the OSNR model for EDFA amplifiers, SNR OUT = 1/(1/SNR IN + FhvB/P IN ), what does SNR IN represent?()
Which is a legitimate bandwidth matched pair?()
Why are the 1300 nm and 1550 nm regions of the fiber spectrum primarily used for optical communications?()
What is the difference between the transmitted power and the sensitivity of the receiver?()
A Channel ID mismatch occurs when ().
A 2.5 Gb/s (OC-48 or STM-16) optical signal with a dispersion tolerance of 1200 ps/nm goes through fiber with 18ps/nm*km of dispersion. How many 15216-DCU-350 equivalents are needed for enough compensation after traveling 100 km?()
If node 2 is accepting line timing from node 1, node 2 will send ()to node 1 as its SSM message.
What is the phenomenon called where different wavelengths of light travel at different speeds?()
Click the Exhibit button. What is the maximum allowable loss budget between the ONS 15216 Mux (left side) composite output and the ONS 15216 Demux (right side) composite input, with the optical values given in the exhibit? ()(Assume the worst case loss of 4.5 dB for 15216 200 GHz Mux/Demux and ignore power penalties or extra margin.)
What three in combination are factors that can cause four-wave mixing in fiber-optic cables? ()(Choose three.)