Free Huawei HCIA-Transmission V2.5 H31-311_V2.5 Exam Questions

The value of the MFAS byte increases with the sequence number of the OTUk/ODUK base frame and includes the most () base frames.

QinQ technology can be used when multiple users need to share the same VCTRUNK and use the same VLAN ID.

The Raman amplifer uses which of the following effects?

OChr means the use of electrical monitoring technology.

Which of the following technologies is the main difference between an open DWDM system and an integrated DWDM system?

Are the following statements regarding the definition of SDH correct?

Which of the following modulation technologies has the best performance in terms of wavelength stability?

A light wave has two independent and orthogonally polarized modes on the plane perpendicular to the transmission direction, which are generally called X polarization and Y polarization respectively. Using this property of optical signals, the polarization multiplexing separately modulates optical signals on the two orthogonal polarizations.

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

When an OTU board works with an OLP board, the optical power difference cannot be used as a trigger condition for intra-board 1+1 protection switching.

The standard Ethernet frame length should not be less than 64 bytes Which of the following factors contribute to this limitation? (Multiple choice).

The dual fiber ring topology consisting of three network elements is arranged in counterclockwise order as the service between A, B and C A and C occupies the first VC-48 on the short path VC-12 time slots, B and C of the same service also occupy the 48th of the first VC-4 on the short path VC-12 time slots

When configuring 1+1 optical line protection, you can select RI1/TO1 or RI2/T02 as the working channel according to the actual situation.

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

After the U2000 sends configuration data to the network element, if the SCC single board authentication fails, the network element enters the installation state.