The OSN 1800V supports the following packet protection features:

A. Tunnel APS

B. LAG

C. TPS

D. PW APS

Which of the following monitoring boards do not support 1588v2 signal processing and transparent transmission?

A. AST2

B. SC2

C. ST2

D. SCI

Which of the following functions is added to EX40 compared with X40?

A. Monitors the optical power of a single channel.

B. Supports optical-layer cross-connections.

C. Fewer slots are occupied.

D. More multiplexed and demultiplexed wavelengths

Which of the following is not included in an ASON network?

A. ASON Domain

B. ASON NE

C. SC

D. TE Link

Which of the following statements about replacing the SCC board is incorrect?

A. In the case of the 1 + 1 hot backup of the SCC board, replacing the control board does not affect services when the active/standby switchover is performed.

B. After the SCC board is removed, the BD_STATUS and COMMUN_FAIL alarms are reported. After the new board goes online, these alarms need to be manually cleared.

C. If the software version of the new SCC board is later than equipment version, clear the database of the SCC board, and then downgrade the software on the SCC board to the same version as the equipment.

D. If the software version of the new SCC board is earlier than the equipment version, upgrade the software on the SCC board to the same version as the equipment.

Which of the following methods can be used to analyze faults in the NG WDM system?

A. Loopback

B. Service Signal Flow Analysis

C. RMON

D. Replacement

The troubleshooting methods that can be used to separate external faults are:

A. Configuration Data Analysis

B. Meter Test

C. Replacement

D. Loopback

Which of the following Optical NE types are defined in U2000?

A. WDM_OEQ

B. WDM_OTM

C. WDM_OLA

D. WDM OADM

Which of the following statements about AU pointers are correct?

A. The root cause of the AU pointer justification is that the clocks of the upstream and downstream stations are not synchronized.

B. AU-PTR indicates the position of the JO byte.

C. If the receive end detects that the H1H2 bytes are "1", the local end generates the AU-AIS alarm.

D. The value of the AU-PTR pointer is placed in the last 10 bits of the HI and H2 bytes. Therefore, the valid value of the AU-PTR pointer is 0-1023.

A and C are WDM OTM sites, and B is a regeneration site. If the ODU2_LCK signal is inserted at site A, which of the following statements are correct?

A. Site C reports a ODU2_PM_LCK minor alarm.

B. Site A reports a ODU2_PM_BDI minor alarm.

C. Site A reports a ODU2_PM_LCK minor alarm.

D. Site C reports a ODU2_PM_BDI minor alarm.