H31-311_V2.5 HCIA-Transmission V2.5 Questions and Answers

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

Which of the following is affected by changing the element ID of OSN3500 on NMS?

Which of the following bytes can be used for wired phones between two REG devices?

Which of the following statements about an Ethernet switch is incorrect?

The following is the frame structure of the STM-16?

Bait-doped fiber amplifiers (EDFAs) are a key component of the new generation of optical communication systems. Which of the following is the feature of EDFA? Multiple Choice) □

The nominal rate of OTU4 signals is 111,809,973.568 kbit/s. Generally, the line rate is 112 Gbit/s.

Which of the following are the main advantages of SDH?

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

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

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

Which of the following is photolayer tracking? (Multiple Choices)

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

The1310nm and 1550nm transmission windows are low loss windows. In DWDM systems, only the 1560m transfer window is used. Which of the following is the main cause?

Which of the following communication protocols are used for DCN management of Huawei devices? (Multiple choice).

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.

The TAG attribute cannot be set for the internal port VCTRUNK of the single board on the NMS.

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

Which of the following are the components of the WDM system summer with N glass lengths? (Multiple choice).

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

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

Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?

When the bridge uses IVL learning mode, an entry in the MAC address table is created based on the source MAC address and source port of the teach frame. This entry applies to all VLANs

The UITL board multiplexes and demultiplexes signals with a 50 GHz spacing and signals with a 100 GHz spacing.

LCK insertion takes precedence over AIS insertion. That is, if the user configures LCK insertion and the conditions for automatic AS insertion are met, the LCK is inserted.

A PAUSE frames use reserved multicast addresses and are not forwarded by bridges or switches. In this way, the PAUSE frame does not generate any additional information.

TU-AIS is often encountered during network maintenance. Which of the following alerts can trigger a TU-AIS alert? (Multiple choice).

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

The 1510nm optical monitoring channel can be effectively amplified after passing through EDFA.

Two PIU or APIU boards of an OpCXtrans E6616/OptiX OSN 1800V Pro are used to supply power for the system In hot backup mode. When either of the two PIU or APIU boards is faulty, the system can still function properly.

Which of the following is not a basic component of a WDM system?

If a network port that supports autonegotiation is connected to a network port that does not support autonegotiation, you can interconnect in both half-duplex and full-duplex modes.

Which of the following is the multiplexing method of SDH?

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?

For alignment; Indicates the starting position of VC-n in the corresponding AU or TU frame. • This way: The receiver can correctly remove the corresponding VC from STM-N, and then The VC and C packages are separated into separate low-rate signals, such as PDH, which means that the low-rate path signal can be dropped directly from the STM-N signal.

For (on-premises) HA solutions where active and standby servers are deployed in the same location, which of the following platforms can be deployed? (Multiple choice).

NE A and NE B are adjacent NE

If B3 and low-order Falses occur in the A->B direction, and B1, B2, B3, and low-order Falses occur in the B->A direction, it is caused by Which of the following performance events does NEA report? (Multiple choice).

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

The TNG1N401 board supports hybrid transmission of multiple ODUk granularities.

Which of the following statements regarding the protection of the cross-connecting plate 1+1 is correct? (Multiple choice).

The interval between two adjacent pointer alignment events is at least () frames.

In the case of a 1+1 linear MSP, which of the following switching modes does not require the APS protection protocol full (multiple choice) to be enabled

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.

Which of the following statements about the MD02 board is incorrect?

When the number of block errors detected by the B2 byte received at the recerve end is returned to the transmit end through the Ml byte, which of the following alarms or performance events are reported at the transmit end?

The OPC board is an optical-layer platform board that must work with pluggable modules.

Which of the following is not a condition that triggers multiplexed segment protection (MSP)?

You can view the NE license status and replace the license that is about to expire in a timely manner to prevent the impact of license expiration on services.

Which of the following alerts does not trigger an AU-AIS alert?

On a Layer 2 switching device, if the Ethernet port is an Access port, the port can only receive Ethernet frames without a VLAN tag or Ethernet frames with the same VLAN ID as the default VLAN ID of the port.

The number of bit False blocks on each VC4 channel is detected by B3 on the receiving side. At the same time, the information is sent back to the sender via Q, and HP-REI and HP-FEBBE report on the sender.

Which of the following is the VLAN classification method? (Multiple choice).

Transmitting test frames affects services.

If the overhead bytes pass through two plugged backplane buses, then the two slots are called paired slots that enable automatic transparent transfer of overhead bytes, such as (), () and (). Even if the SCC on the local network element The board is offline, which can also improve msP switching performance and protect DCC communication with other network elements. (Multi-quality selection).

Which of the following maintenance signals is transmitted from the downstream site to the upstream site of the OTN?

When configuring the SXCS single board for the OSN3500, which of the following is the access package of the fully configured substand?

In the colored scenario, the TM20fTD20 board can be used to add/drop wavelengths.

When configuring LMSP, there are two switching modes: single-ended switching and double-ended switching. Single-ended switching does not require the protection protocol to be enabled.

The OTN signal has a fixed pad period, the same frame period as the SDH signal.

Automatic Laser Shutdown (ALS): When no optical signal is received, the ALS function automatically turns off the corresponding optical module. This feature protects field maintenance personnel.

Which of the following statements about extending the ECC is incorrect?

Both PDH and SDH have globally harmonized standards.

Which of the following are key technologies in a WDM system?

Which of the following logic function blocks are involved in processing clock signals? (Multiple choice).

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

In a WDM system, when the number of wavelengths is greater than ( ), the arrayed waveguide grating (AWG) is recommended.

Optical module parameter "L-64.2" in the "2" indicates which of the following working windows?

Which of the following logical function modules is used to generate exhaust R-LOS alerts?

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

Which of the following is the functional unit that provides serial data for the interface and system associated with the orderwire phone?