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When the data is forwarded by the PTN device, when the value of the TYPE field of the Ethernet header is OxO8O0, which protocol is the encapsulated inner packet?
When congestion occurs, what are the packet discarding methods supported by OptiX PTN 1900&3900?
Which of the following are the possible causes of PW failures in the network?
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 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?
Now NE1 and NE2 form a chain network, and E1 service is configured between NE1 and NE2. One day, the fiber from NE1 to NE2 is interrupted (each segment of the
reverse fiber). Which of the following alarms will NE2 report?
During the negotiation between the two ends of the PTN LAG, the device with the smaller system priority number is the master device
After the LAN is divided into VLANs, if computers in different VLANs want to communicate, IP routing needs to be established. Which of the following solutions can be used?
Which of the following descriptions about the reasons for the continuous adjustment of network element pointers is correct?
Which of the following statements is incorrect about the optical layer interfaces OTM-nm and OTM-nrm of OTN?
Which of the following identification fields in the data packet header of each protocol layer cannot identify the upper layer data type carried by this layer
Any service cross-connect can only be configured in inter-board cross-connect, and does not require the participation of XCS boards
There are five trigger conditions for the execution of protection switching. According to the priority of the trigger conditions, they are arranged from high to low. Which of the following is correct?
When configuring LMSP, there are two switching modes: single turbulent cutting and inserting and double full switching. Single-ended switching does not require self-use protection
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?
MPLS was originally proposed to improve the forwarding speed of routers. It integrates the advantages of IP and ATM. What are the characteristics?
Which of the following detection methods can locate the fault point of LSP?
The DCN red copper feature between network elements of PTN, which VLAN number is used by default for DCN self-communication between network elements.
MPLS is used to label packets instead of IP forwarding. Which of the following descriptions about MPLS packet encapsulation are correct?
When deploying LAG, which of the following can the traffic load sharing hash algorithm be based on?
Which of the following descriptions about the PTN network deployment ring network intersecting ring are correct?
Qinia technology can be used when multiple users need to share the same VCTRUNK and use the same VLANID.
When PTN carries LTE services, it forwards packets based on MPLS label switching. In the MPLS label, which identification field can be used as a PTN to distinguish the label
at the bottom of the stack?
According to the deployment plan of the existing network, which protocol does not need to be deployed for the interconnection between PTN equipment and SGW?
The NCE network management supports a variety of external interfaces. Which of the following interfaces can be used when connecting with the network management equipment of other manufacturers?
Which of the following statements about the slave subrack SCC function is correct?
Which of the following statements about switches and how they work is correct?
Which of the following types of protection is electrical layer protection?
After a certain distance transmission in the wavelength division system, the optical signal-to-noise ratio of the signal at the receiving end will decrease to a certain extent. The main reason is which of the following?
When the optical cable between the FIU and the FIU is faulty, what are the optical layer alarms reported by the downstream station?
In the MPLS label field of the PTN network, which item is the identification field of the stack bottom label?
When the scheduling granularity of the N302 board is ODUflex, what are the supported protection types?
Plan the base station IP address network segment 10.1.1.0/26 Which of the following addresses can be used by the base station?
The purpose of setting the upper and lower threshold alarms for performance monitoring through professional network management does not include which of the following?
Which of the following descriptions about network protection switching test is wrong?
Which of the following descriptions about electrical layer service configuration is wrong?
Which of the following statements about multiplexed partial range error indication (MS-REI) is true
? B2 byte represents the transmission channel.
? M1 byte folder indicates the transmission channel
? MS-REI is sent from the receiver to the source.
? MS-REI is transmitted from source to receiver
? Indicates the number of bit errors detected by the receiver after receiving the MS signal.
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?
When the data is forwarded by the PTN device, when the value of the TYPE field of the Ethernet header is 8847, what protocol is the inner packet of the encapsulation?
Which of the following combinations of dynamic optical add/drop multiplexing boards does not hold?
Which one is correct about the description of MC-LAG on L2/13 nodes in LTE network?
Which of the following is the main structure of the N-way wavelength multiplexing WDM system?
The M40 board has 2 waves of access, and the power of each wave is -4dBm. So which of the following values is the power of the M40 output port? (M40 insertion loss is 6.5dBm)
Which of the following protections are protected by electrical layer double transmission and selective reception?
Which of the following descriptions about single-site commissioning is wrong?
Which of the following logical function blocks is used for multiplexing section switching?
In the Ethernet LAG, which of the following modes needs to enable the LACP protocol?
Which of the following identification fields in the data packet header of each protocol layer cannot identify the upper layer data type carried by this layer?
Which of the following options are the basic requirements of DWDM system for light source
In NG-SDH, the soft reset of the SDH board does not affect the running business, and the hard reset operation will affect the running business.
Which of the following technologies is used in the dynamic BGP MPLS L3VPN to distinguish the same IP address prefix in different VPNs in the BGP protocol?
In Huawei's PTN-LTE solution, which of the following FRR technologies have been deployed?
Which of the following network element forms supports the functions of branch and line, cross-multiplexing between lines and lines, and service adding and dropping functions?
Which of the following layers of overhead belong to the electrical layer overhead of OTN
In the WDM transmission system, the main factors that affect the unevenness of the power balance of each channel do not include the following?
Which of the following statements about the internal port attributes of an Ethernet board is incorrect?
Which of the following descriptions of the electrical layer multiplexing and mapping steps of ODU0 is wrong?
Which of the following statements about the advantages of QinQ is correct?
The international professional organization responsible for allocating P addresses has divided several network segments as private network segments, which can be freely allocated and used by people on the private network. What are the
following network segments belonging to private addresses?
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?
CAR is deployed on PTN equipment. Which of the following descriptions is wrong?
When performing single-site commissioning of SDH equipment, it is necessary to check the single-site hardware: including cabinet and subrack installation inspection, power line resistance measurement, cable layout specification
inspection, single-board appearance inspection, and some single-board inspections. DIP jumper check
Optix Datacollector supports black box fault data collection for various products. Which of the following products are not supported?
When configuring the L3VPN service, which operation will cause the service configuration to fail?
The device IP addresses of gateway network elements and non-gateway network elements must be set in the same network segment
Which of the following protection types is not supported by the L302 board?
Which of the following is not included in the function of the Inspector inspection tool?
On the U2000 network management, you can make an inner ring and an outer ring on the PTNE1 port to facilitate testing
When the bridge is using ML learning mode, create an entry in the MAC.Address gateway depending on the source MAC map and server port. This entry applies to all VANs
When configuring electrical cross-connect services on NG WDM equipment, the client-side service types at both ends of a bidirectional service must be consistent.
The multi-level connection monitoring mode (TCM) of OTN has three application forms. Which of the following is correct?
In the OSN6800 subrack, when the OTU is inserted in the 17th slot, electrical layer scheduling can be realized
The characteristic of the open DWDM system is that there are no special requirements for the optical interface of the multiplexing terminal, and only these interfaces are required to comply with the optical interface standard
recommended by ITU-T. The DWDM system adopts wavelength conversion technology to convert the optical signal of the multiplexed terminal into a specific wavelength, and the optical signal of different terminal equipment is converted into
different wavelengths that comply with ITU-T recommendations, and then multiplexed.
TESTED 21 Jan 2025