QUESTION 190
Forced switching, fiber switching, manual switching and motion switching are decreased in order of priority.

QUESTION 191
Which of the following statements about the frame structure of SDH signals are correct? (Multiple choice)

QUESTION 192
Tunnel is a mechanism for transparently carrying information on the network. It is used to carry PW.
One Tunnel can carry one PW.

QUESTION 193
Which of the following different types of ESC are divided according to the principles of implementation? (Multiple choice)

QUESTION 194
Currently, 32-bit IP addresses are no longer sufficient, and MPLS labels are only 20 bits, so MPLS labels will not be sufficient as the network becomes larger.

QUESTION 195
Only one TCM can be used at one site

QUESTION 196
If the overhead bytes pass through two plugged backplane buses, then the two slots are called paired slots that enable automatic transparent transfer of overhead bytes, such as (), () and (). Even if the SCC on the local network element The board is offline, which can also improve msP switching performance and protect DCC communication with other network elements. (Multi-quality selection).

QUESTION 197
Which of the following options are included in the advantages of Liquid OTN? (Multiple choice)

QUESTION 198
Which of the following statements about the MSP ring are correct? (Multiple choice)

QUESTION 199
Which of the following statements about signal label byte C2 are incorrect?

QUESTION 200
If SNCP services with the same source, sink or route are grouped, the SNCP switching speed can be improved.

QUESTION 201
In the OLT+ONU combined networking mode, OLT mainly plays the role of (), so the OLT equipment is required to have good performance and be able to provide sufficient bus bandwidth.

QUESTION 202
OTN technology is developed based on SDH and WDM technology, and combines the advantages of both technologies.

QUESTION 203
Which subtype of tributary SNCP protection requires no electrical relay station in the subnet along which the ODUk signal passes?

QUESTION 204
The frame period of OTN signal is fixed and the same as the frame period of SDH signal.

QUESTION 205
Which of the following is the basic requirement of DWDM system on the light source?

QUESTION 206
When there is no frequency difference and phase difference between VC-4 and AU-4, and between VC-12 and TU-12, the AU-PTR value is 522 and the TU-PTR value is 70.

QUESTION 207
If you group SNCP services with the same source, sink, or route, you can increase the SNCP switching speed