Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured for the protection channel in 1:1 mode of the LMSP.

Which overhead below 112 is not ODUk overhead?

The following is the frame structure of the STM-16?

For (on-premises) HA solutions where active and standby servers are deployed in the same location, which of the following platforms can be deployed? (Multiple choice).

When the working PQ1 board is oversized, the device will perform and the TFS protection will be reversed. Which of the following statements about the switching process are correct? (Multiple choice).

SES: There are 5% or more of the error blocks or at least one defect (OCI/AIS/LCK/IAE/LTC/TIM/PLM) in one second.

The 1510nm optical monitoring channel can be effectively amplified after passing through EDFA.

When the J1 byte does not match, an alarm () is reported and the service may be interrupted.

Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?

Which of the following is not a condition that triggers multiplexed segment protection (MSP)?

The receiver performs a BIP-8 check on unscrambled STM-16 frames. If the BIP8 check result XOR·∶, the value of the B1 byte contained in the next STM16 ring is 10001100, which indicates STM-16 There is a () bit error block in the axis.

The index is used to folio and delineate the starting position of VC-n in the corresponding AU or TU frame so that the receiving end can correctly remove the corresponding VC from the STM-N The VC and C packages are then separated into separate low-rate signals, such as PDH That is; Low-rate branch signals can be discarded directly from the STM-N signal

The number of ODU2e signals multiplexed into the ODU3 signal is the same as the number of ODU2 signals multiplexed into the ODU3 signal.

When the fiber between node A and node B is disconnected, the RU on node B detects OTS_LOS alarm and will OTS_BDI The ru of the alert inserted into node A of node A forces reports OTS BDI alarms. The board reports och_SSF alarm on the downstream C node.

During service configuration, which of the following service levels cannot be selected?

When configuring VLAN-based service types, which of the following features must be enabled on the port?

The SP3D board supports 63 E1 services

According to the formula "ODUk rate = 239/(239k) x STM-N frame rate", ODU4 The rate is equal to the 239/235xSTM-N Pa rate.

RSOH, MSOH, HPOH and LPOH implement the monitoring function in descending order of the monitoring fan country.

LCK insertion takes precedence over AIS insertion. That is, if the user configures LCK insertion and the conditions for automatic AS insertion are met, the LCK is inserted.

In the system control unit, which of the following databases does not lose data after a power failure? (Multiple choice).

Measure the error correction capability of fec with encoded gain. Which of the following statements about the coding gain is incorrect?

Suppose 2 VC-12 time slots need to be bound to the VCTRUNK1 of the N2EFS4 board. When there are 8 VC4 slots on the N2EFS4 board, which of the following slots meets the requirements?

STM-64 has an () AU pointer.

Which of the following statements about basic LCAS functionality are correct? (Multiple choice).

Which of the following statements about the MST functional module is correct? (Multiple choice).

For OSN3500, there is a slot mapping relationship between the processing board and the interface pre-processor. The processing board in slot 1 maps to the interface board in slots 19-20.

Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?

When the ACT indicator of the SDH board is off, it means that the board has a hardware failure and cannot be used.