H31-311_V2.5 Practice Exam Questions and Answers

Which of the following statements about the EFS4 board are correct? (Multiple choice).

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

Which of the following device domains can be managed by U2000? (Multiple choice).

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

PRBS can be used to test that the SDH service is healthy and that the protection reversal function is working.

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

Fiber loss includes bending loss, absorption loss and scattering loss.

During service configuration, there are two time slot modes. Huawei uses interleaved time slot mode by default.

The scope of management of OMSn is the path from the input optical port on the multiplexer unit of the sending site to the output optical port on the multiplexer unit of the receiving site, called the optical multiplexing segment (OMS) path.

When you configure services on a per-NE basis, which of the following protection scenarios does not require subnet configuration before subsequent protection operations?

SL64 board is available for OSN 2500.

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

In the frame structure of the SDH signal, there are large overhead bytes for operation, management, and maintenance (OAM). Overhead bytes account for all bits () of the entire frame and greatly enhance the monitoring capabilities of the network.

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.

Which of the following statements regarding multiplexing partial remote error indication (MS-REI) is correct?

(1) B2 bytes indicate the transmission channel.

(2) The M1 byte represents the transmission channel

(3) THE MS-REl is sent from the receiver to the source.

(4) MS-REI is transmitted from the source to the receiver.

(5) Indicates the number of bit errors detected by the receiver after receiving the MS signal.

The rate of SF64 and SL64 boards is STM54. Therefore, the two plates can be interconnected.

In a 2.5GMSP ring consisting of four MSTP sites, which of the following statements about alarm reports is correct when a protection switchover occurs?

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

Which of the following is the electrical layer cost of OTN? (Multiple choice).

For osn3500, which of the following boards provides centralized backup capability for the +3.3V power supply of each board in the sub-shelf?

Which of the following is the main advantage of SDH? (Multiple choice).

When using a script to back up U2000 data, the backup speed is fast because the backup file is small.

When the U2000 is synchronized, the same network metadata as the U2000 is not uploaded to the U2000, and the data that exists on the U200 but does not exist on the network element is deleted.

Optical monitoring channel is used for monitoring of WDM optical transmission systems. In the UU-T recommendation, it is preferable to use a 1510 nm wavelength of the a ") rate.

QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN I

D.  

The last 256 columns in the OTN frame structure are the FEC regions for forward error correction.

EPL services use ports and bandwidth exclusively, and different users may need to share resources. Which of the following methods can be used to isolate user data?

When the sender detects that the b6-b8 of the K2 byte is 110, it means that the sender has reported an alarm ().

Which of the following statements about the MSP ring is correct? (Multiple choice).