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Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?
When configuring the SXCS single board for the OSN3500, which of the following is the access package of the fully configured substand?
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).
The rate of SF64 and SL64 boards is STM54. Therefore, the two plates can be interconnected.
On the NMS system, the network element performance monitoring time is set to () minutes and () hours.
The TAG attribute cannot be set for the internal port VCTRUNK of the single board on the NMS.
Linear MSP (LMSP) has two modes: 1+1 and 1:1. Additional services can only be configured for the protection channel in 1:1 mode of the LMSP.
During service configuration, which of the following service levels cannot be selected?
Which of the following bytes can be used for ordenwire calls between two REG devices?
When using a script to back up U2000 data, the backup speed is fast because the backup file is small.
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
Single-fiber bidirectional WDM systems use only one optical fiber to transmit optical signals in both directions at the same time. Light signals in both directions should be arranged at different wavelengths.
K1 and K2 bytes can send APS switching signaling or indicate that the multiplexed segment signal is invalid.
Which of the following is the functional unit that provides serial data for the interface and system associated with the orderwire phone?
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.
QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.
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.
Configuring the EPLAN service as a ring is not recommended. If the EPLAN service is configured as a ring network, the STP protocol must be enabled on the network to prevent broadcast storms.
Which of the following device domains can be managed by U2000? (Multiple choice).
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.
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).
U2000 can flexibly interconnect with different third-party network administrators through the Northbound Interface (NBI) and provide physical inventory and alarm information for the upper-layer network management.
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.
The device IP address of the gateway element and the non-gateway element must be set in the same network segment.
When the working PQ1 board is oversized, the device will perform and the TFS protection will be reversed. Which of the following statements about the switching process are correct? (Multiple choice).
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 are the components of the WDM system summer with N glass lengths? (Multiple choice).
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.
When a bit False is detected in B2 bytes, which of the following alarms is reported by the peer?
In the case of SNCP, the board selectively receives the service. Therefore, SNCP can protect services on the line.
The difference between dispersion compensation fibers and ordinary optical fibers is that the dispersion compensation fibers have a negative dispersion coefficient at ().
In the OSN550, the CXL slot contains a function board that integrates a system control and communication (SCC) unit, a cross-connecting unit, and a clock unit Depending on the functionality and access features provided by the OSN550, there are several types of dashboards
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 is the maximum number of OSN3500 sub-racks that can be installed in a 2.2-meter cabinet?
In WDM systems, it is ideal to use a dielectric thin problem filter (TFF) when using less than () wavelengths.
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).
Suppose 2 VC-12 time slots need to be bound to the VCTRUNK1 of the N2EFS4 board. When there are 8 VC4 slots on the N2EFS4 board, which of the following slots meets the requirements?
Which of the following methods can be used to multiplex low-order ODUK to higher-order ODUk?
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.
The value of the MFAS byte increases with the sequence number of the OTUk/ODUK base frame and includes the most () base frames.
Which of the following local maintenance endpoints can be used to manage MSTP devices?
The receiver performs a BIP-8 check on unscrambled STM-16 frames. If the BIP8 check result XOR·∶, the value of the B1 byte contained in the next STM16 ring is 10001100, which indicates STM-16 There is a () bit False block in the axis.
For OSN3500, there is a slot mapping relationship between the processing board and the interface pre-processor. The processing board in slot 1 maps to the interface board in slots 19-20.
TU-AIS is often encountered during network maintenance. Which of the following alerts can trigger a TU-AIS alert? (Multiple choice).
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.
Which of the following alarm/event storage modes does U2000 support? (Multiple choice).
TESTED 22 Dec 2024
