In the Windows operating system, the log files of the U2000 program are stored in the ( ) directory of the U2000 installation drive.

Which of the following alarm/event dumping modes are supported by the U2000? (Multiple Choice)

For the (local) HA solution where the active and standby servers are deployed in the same place, which of the following platforms can be deployed? (Multiple Choice)

Outband networking requires higher costs than inband networking, but provides more reliable management channels.

Which of the following communication protocols are used for DCN management on Huawei devices?

(Multiple Choice)

Which of the following methods can be used to multiplex lower-order ODUk to higher-order ODUk?

The management scope of an OMSn is the path from the input optical port on a multiplexer unit at the transmit site to the output optical port on a demultiplexer unit at the receive site, which is called an optical multiplexing section (OMS) path.

Which of the following operations may interrupt NE services? (Multiple Choice)

The Kl and K2 bytes can transmit APS switching signaling, and can also indicate that the multiplex section signal fails.

By default, the B2-EXC alarm is reported when the number of B2 bit errors exceeds the ( ) threshold.

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

Which of the following is the meaning of SFD in the Ethernet frame structure?

Some of the SNCP protection switching conditions are default, such as AU-AIS and TU-AIS. Others conditions are optional, such as HP-TIM and HP-SLM. The optional conditions can be flexibly set based on service levels.

The difference between a dispersion compensation fiber and a common fiber is that the dispersion compensation fiber has a negative dispersion coefficient at ( ).

Which of the following statements about the 1+1 protection of cross-connect boards are correct? (Multiple Choice)

When the rate of an SNCP ring consisting of four OptiX OSN 2500 devices is 2.5 Gbit/s, the service capacity of this network can carry a maximum number of ( ) 2 Mbit/s signals.

The STM-64 has () AU pointers.

When a bridge uses the IVL learning mode, the entry in the MAC address table is created according to the source MAC address and source port of the data frame. This entry is valid for all VLANs.

Which of the following statements about the multiplex section remote error indication (MS-REI) is correct?

1. The B2 byte indicates the transmission channel.

2. The Ml byte indicates the transmission channel.

3. MS-REI is transmitted from the sink to the source.

4. MS-REI is transmitted from the source to the sink.

5. Indicates the number of detected bit errors after the sink receives the MS signals.

An arrayed waveguide grating (AWG) multiplexer/demultiplexer has the following advantages: short wavelength spacing, large number of channels, and flat passband. It suits DWDM systems with ultra-high speed and large capacity.

Which of the following statements about overhead bytes is incorrect?

A PAUSE frame uses a reserved multicast address and is not forwarded by a bridge or switch, In this way, the PAUSE frame does not generate any additional information.