H31-341 Online Practice Questions and Answers

If the LED indicator value on the SCC board of the OSN 8800 T32 board is 11, which of the following is the subrack ID?

A. Slave subrack 2

B. Slave subrack 1

C. Slave subrack 17

D. Slave subrack 11

Loopback is a common operation for routine maintenance and troubleshooting. Which of the following statements about loopback operations are incorrect?

A. The hardware loopback is performed by using the fiber jumper or self-loop cable to perform the loopback on the optical port or electrical port.

B. When performing a hardware loopback on an optical port, you need to add an optical attenuator.

C. After the outloop is performed, the signals are transmitted to the internal.

D. After the inloop is performed, the signals are transmitted to the external.

Which of the following statements about ROADM are correct?

A. ROADM technology uses the NMS software to deliver configurations to implement the wavelength adding/dropping and pass-through status.

B. NG WDM equipment supports ROADM with fixed spectrum and Flexible ROADM with flexible spectrum.

C. ROADM can adjust the optical power of the pass-through wavelength and the added wavelength.

D. OandM personnel need to provide onsite support for wavelength adjustment at ROADM sites.

Which of the following statements about MPLS is wrong?

A. MPLS has two planes: control plane and forwarding plane. The control plane is connection-oriented, the forwarding plane is connectionless.

B. MPLS is not a service or application. It is a standard routing and switching platform that supports various upper-layer protocols and services.

C. In the packet transport field, the MPLS technology is mainly used to construct tunnels to carry various types of services (for example, TDM, ATM, and Ethernet) transmitted by PWE3 to implement end-toend transmission of services on packet networks.

D. MPLS packet forwarding is based on labels.

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 is not a precaution after board replacement?

A. Record the settings of jumpers and DIP switches on the board.

B. /For functional units that have backups, check whether the switchover is normal.

C. Check the indicator blinking status of the board and ensure that the board works properly.

D. Ensure that no abnormal alarm.

Before the optical power commissioning of an ROADM board, you need to configure virtual optical-layer services. Otherwise, the ROADM board blocks all wavelengths by default.

A. True

B. False

The LOA board can implement the L2 scheduling function of the Ethernet in OSN 1800.

A. True

B. False

When creating new NE,which of the following Configuration Mode can be selected?

A. Initialize and Manually Configure NE Data

B. Download

C. Upload

D. Copy NE Data

Which of the following is the client-side logical port of a board in standard mode?

A. ODUkLP-n

B. RX/TX-n

C. ClientLP-n

D. n(Nn/OUTn)-OCH:l-ODUk:m-ODUp:q