Quick Links
Why Us
Unlimited Packages
Site Secure
TESTED 23 Nov 2024
We Accept
To determine whether the optical fiber lines and connectors on the wavelength division side are normal, which of the following loopback methods is most suitable?
Which of the following light source technologies does the 100GOTU board use?
Any service cross-connect can only be configured in inter-board cross-connect, and does not require the participation of XCS boards
Both the 1310nm and 1550nm transmission windows are low-loss windows. In the DWDM system, only the 1550nm transmission window is used. Which of the following options is the main reason?
Arrayed waveguide grating optical multiplexer and demultiplexer has the advantages of small wavelength interval, large number of channels, flat passband, etc. It is very suitable for ultra-high-speed, large-capacity wavelength division
multiplexing systems.
Which of the following statements about optical line protection OLP is wrong?
STM-N signal transmission on the line needs to be scrambled, mainly to facilitate collection and extraction of line timing signals. Will all bytes in the SDH frame structure be
scrambled?
In the NG-WDM system, which of the following boards supports optical line protection?
When configuring electrical layer crossing, what are the rules for time slot configuration?
The ETH_UWK_DOWN alarm indicates that the network port connection is faulty. The possible reasons do not include which of the following?
Which of the following optical loss alarms will not cause service interruption?
Which of the following statements about multiplexed partial range error indication (MS-REI) is true
â‘ B2 byte represents the transmission channel.
â‘¡ M1 byte folder indicates the transmission channel
â‘¢ MS-REI is sent from the receiver to the source.
â‘£ MS-REI is transmitted from source to receiver
⑤ Indicates the number of bit errors detected by the receiver after receiving the MS signal.
Which item is wrong about the description of PTN network MC-PWAPS protection features?
Which of the following operations need to be done before querying the bit error and optical power on the tube, otherwise the corresponding data cannot be queried?
What kind of fault detection is used to trigger VPN FRR protection in PTN LTE?
An OSN 9800 ring network is configured with ODUK ring network protection. Now a section of the optical cable on the ring needs to be reconstructed. In order to avoid frequent repetition of services during the reconstruction, which of
the following operations should be performed?
Which of the following statements about the slave subrack SCC function is correct?
In the SDH system, we can use the instrument to test the input jitter tolerance of the STM-N interface. Which of the following instruments can complete this function?
Which of the following 7900 single-board software function descriptions are correct?
OSN6800 equipment, ND2, TQX report the BUS_ERROR alarm after configuring the power cross-connect, what are the possible reasons?
In order to determine whether the optical fiber lines and connectors on the wavelength division side are normal, which of the following loopback methods is most suitable?
In order to quickly locate and eliminate the faults of optical network equipment in a timely manner, maintenance personnel are proficient in the basic operation of common transmission instruments. Which of the following instruments are
commonly used in optical network equipment maintenance?
CAR is deployed on PTN equipment. Which of the following descriptions is wrong?
In the current network, which of the following is the most common way of dividing VUNs?
In the path hierarchy of the WDM network, which paths belong to the optical layer?
The DCN red copper feature between network elements of PTN, which VLAN number is used by default for DCN self-communication between network elements.
Create an ETH private line service in the PTN network, and connect an Ethernet tester to the UNI port for RFC2544 testing. The instrument shows that the current port has only sending traffic
and no receiving traffic. What are the possible reasons?
Which of the following statements about 100G coherent PDM-QPSK modulation is incorrect?
The PWE3 technology in the PTN network often uses VLAN. Where is the VLAN in the Ethernet packet?
When it is found that the local end reports the ETH_LOS alarm, the fault can be located by the switch-back method. If the alarm disappears after the ODF loops back to the local end, which of the following may be
the cause?
The 802.1Q tag header contains a two-byte TPID. Which of the following is its standard value?
When any of the following situations occurs, the ODUk_PM_DEG alarm will be reported on the NMS?
Which of the following combinations of dynamic optical add/drop multiplexing boards does not hold?
MPLS is located between the data city road layer and the network layer in the TCP/IP protocol stack, and is used to provide services to the IP layer, and at the same time, it gets the business from the mallet road layer.
When creating a static TUNNEL, you need to specify the interface of the next hop. Which is the displayed address of the next hop?
TESTED 23 Nov 2024