2017年12月11日星期一

H31-311-ENU HCNA-Transmission exam dumps

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Share some HCNA-Transmission H31-311-ENU exam questions and answers below.
If a network interface that supports auto-negotiation is docking with a network interface that does not support auto-negotiation, half-duplex or full-duplex may occur. 
A. True 
B. False 
Answer: A

LDG supports ODU1-level electrical layer scheduling. 
A. True 
B. False 
Answer: B

Which of the following steps will low-speed business to be multiplexed into the high-speed SDH business generally go through? (Multiple choice) 
A. Mapping 
B. Overhead insertion 
C. Positioning 
D. Multiplexing 
Answer: ACD

When insert LCK to the local ODUk signal, which processing will not the downstream station system do? 
A. report ODUk_PM_LCK alarm 
B. Insert ODUk_AIS message 
C. Pass back ODUk_PM_BDI 
D. Insert ODUk_PM_LCK alarm 
Answer: D

Optical monitoring channel is set up for the monitoring of WDM optical transmission system, ITU-T recommends perferably the use of 1510nm wavelength, the capacity of 2MHz/s. 
A. True 
B. False 
Answer: B

All bytes in the SDH frame structure will be scrambled. 
A. True 
B. False 
Answer: B

Which of the following adjustment can make information payload area carry the most information payload? 
A. Positive adjustment 
B. Negative adjustment 
C. No adjustment 
D. NDF Inversion 
Answer: B

When the PM segment of the ODUk generates a serious errored second, the network administrator will report ODUk_PM_ES alarm. 
A. True 
B. False 
Answer: B

Which of the following is the adjustment unit of the AU-PTR? 
A. One byte 
B. Two bytes 
D. Three bytes 
E. Four bytes 
Answer: C

Complex flow classification refers to classifying packets according to the ToS (Type of Service) field of the IP packet, the user priority, or the EXP field of the MPLS packet, to identify the flow with different priority characteristics. 
A. True 
B. False 
Answer: B


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