Practice Free H12-931_V2.0-ENU Exam Online Questions
What functions does the SDH overhead byte perform? (Multiple choice)
- A . Error monitoring
- B . Pointer positive adjustment
- C . Frame Positioning
- D . Channel Tracking
The maximum cross-connect capacity of a single slot in an OSN 8800T32 enhanced subrack is ().
- A . 100Gbit/s
- B . 200Gbit/s
- C . 400Gbit/s
- D . 40Gbit/s
An ETH_LOS or LINK_ERR alarm appears on a single Ethernet port of a multi-interface Ethernet board, and the service is interrupted. Possible reasons include: Ethernet port working mode mismatch or interface rate inconsistency, optical module hardware failure, and which is other possible reasons?
- A . Fiber optic connection error
- B . Ethernet port property settings are wrong
- C . The MTU parameter is set too small
- D . SDH line VC4 channel failure
If there is a problem with CORBA connection, you can analyze it as follows. If it is not a problem on the U2000 side, you should look for it from the upper-layer network management itself or the U2000 and the upper-layer network management should work together to find it: If the name and notification services cannot be started normally, you should check whether the corresponding ports are occupied, or try to use other ports; If the U2000 cannot be started, you can check whether the CORBA configuration files bundle cfq and ems cifq are correct
- A . True
- B . False
Which of the following PTN equipment protection mechanisms require the OAM function to be enabled? (Multiple choice)
- A . VRRP
- B . tunnel APS
- C . PW APS
- D . LAG
- E . MC-LAG
- F . LMSP
Which of the following options can reduce the impact of nonlinear effects in wavelength division systems? (Multiple choice)
- A . Use high-performance optical fiber
- B . Controlling optical power
- C . Dispersion Management
- D . Advanced Lighting Technology
The low-order path overhead byte V5 in VC12 is similar in function to which of the following overhead bytes in the high-order path overhead of VC4? (Multiple choice)
- A . J1
- B . G1
- C . C2
- D . B3
When using OSN8800 T32, if you need to set the ID number of the master and slave subracks, which board should you set it on?
- A . EFI
- B . EFl1
- C . EFl2
- D . SCC
When OSN 8800 equipment accesses GE signals, what boards can be used? (Multiple choice)
- A . TOA
- B . TDX
- C . TEM28
- D . TSC
Which of the following descriptions of coherent technology is correct?
- A . Coherent technology has increased the line rate to 100G while still keeping the spectral bandwidth significantly less than 25GHz
- B . Coherent technology eliminates CD/PMD through DSP
- C . Coherent reception technology, OSNR tolerance can theoretically be improved by 2dB
- D . Wavelength division can evolve to single-wavelength 100G or even higher rates by selecting phase OUT or traditional non-phase OTU