dumpspedia logo
Which of the following bridges are used to forward data based on the MAC address and VLAN ID carried in the data?
The.0ptiX0SN 8800 T64 system is equipped with 4 PIU boards, and uses 1+1 hot backup mode to supply power to the system.
The PWE3 technology in the PTN network often uses VLAN. Where is the VLAN in the Ethernet packet?
Which of the following is wrong about the comparison between Raman amplifiers and EDFAs?
To create a unicast BFD session between two IP addresses in a PIN network, which of the following must be satisfied?
CAR is deployed on PTN equipment. Which of the following descriptions is wrong?
The PTN3900 device needs to complete the access and processing of E1 signals through the processing board, service daughter card, and interface board. Which of the following boards is not involved in the
work?
Which of the following layers of overhead belong to the electrical layer overhead of OTN
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 items are unreasonable to configure the default route on the PTN device in the LTE solution?
Regarding the IS-IS backbone area, which of the following statements are correct?
For ODUK SNCP protection, which of the following types does not apply to the pass-through site being an electrical relay site?
In the PTN LTE solution, what operations will the L2/L3 node perform on the service data sent from the base station to the EPC?
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?
When configuring SxCS board for OSN3500. Which of the following is the access capacity of a fully configured subrack?
In PTN, LSP is created statically. Which items are correct in the following description about LSP creation?
DCM optical power debugging requires the input of DCM to be no greater than which of the following values?
The services carried by PWE3 need to be sensed by the internal nodes of the PSM network.
IEEE 802.1Q defines the structure of VLAN tags, including TPID, PRI, CR, and VLAN ID. Which of the following is used to classify service
priorities?
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)
Any service cross-connect can only be configured in inter-board cross-connect, and does not require the participation of XCS boards
In the PTN network, the L3 node needs to learn the ARP message to forward the message to the SGW. What is the type of the ARP response message?
When the optical cable between the FIU and the FIU is faulty, what are the optical layer alarms reported by the downstream station?
Which of the following technologies is used in the dynamic BGP MPLS L3VPN to distinguish the same IP address in different VPNs in the BGP protocol?
optâ…¸ Datacollector supports black box fault data collection of multiple products. Which of the following products is not supported?
Standard Ethernet frame length should not be less than 64 bytes. Which of the following factors would cause this limitation?
The DWDM system has extremely high requirements on the stability of the light source. Which of the following factors will affect the stability of the light source?
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?
When the device reports the PW_APS_DEGRADED alarm, what is the problem with the LTE service carried by the station?
Qinia technology can be used when multiple users need to share the same VCTRUNK and use the same VLANID.
According to the IEEE 802JQ standard, where is the VLAN ID field on the Ethernet?
The key technology in the PTN network is IP/MPLS technology. How many levels can MPLS labels be nested?
Which of the following descriptions about the PTN network deployment ring network intersecting ring are correct?
When the data link layer uses Ethernet, the encapsulation format of the data frame includes the destination MAC, source MAC, TYPE, and FCS fields. When the value of the TYPE field is 0x0806,
it indicates that the encapsulated inner packet is which of the following protocols?
The pump laser is the energy source of the EDFA, and its function is to provide energy for the amplification of the optical signal. Which of the following wavelengths can be used as the output wavelength of the
pump source in the EDFA structure?
During device initialization and commissioning, which of the following configuration descriptions is incorrect?
In the PIN LTE bearer solution, if the link between the core L3 PTN node and the SGW is faulty, what are the triggering detection mechanisms and protection mechanisms?
The 1588V2 clock protocol can realize clock and time synchronization, and the working modes are OC, BC, TC.
Which of the following is the destination MAC address of the Layer 2 header of the data received by the PTN960 from the LTE base station?
In the path hierarchy of the WDM network, which paths belong to the optical layer?
Using Huawei PTN7900 to carry the L3VPN service, there is no need to plan VPN peers between the two devices
In the MPLS-TPOAM architecture of PTN equipment, what are the functions of network performance maintenance?
On the U2000 network management, you can make an inner ring and an outer ring on the PTNE1 port to facilitate testing
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
How many bits does the VLAN ID occupy in the Ethernet frame format marked with IEEE 802.1Q?
When configuring electrical layer crossing, what are the rules for time slot configuration?
What are the possible reasons for the unsuccessful OCH creation by the path method?
During the normal operation of the network, the service channel protected by ODUK SNCP generates a condition for triggering protection switching, and the service has been automatically switched to the protection channel. When the fault
of the working channel is eliminated, the service cannot be automatically restored to the working channel.
When creating a static tunnel, you need to specify the interface of the next hop. Which is the displayed address of the next hop?
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?
VLANs are used to isolate Layer 2 broadcast domains. Which of the descriptions of VLANs are correct?
Standard FEC, AFEC and HFEC techniques all increase the FEC overhead, and the coding gains achieved are progressively increased.
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?
OSN6800 equipment, ND2, TQX report the BUS_ERROR alarm after configuring the power cross-connect, what are the possible reasons?
When configuring GE services, the types of services in one direction can be different for the transmission and reception of a service.
Which of the following items belong to the debugging work of the playback system?
In the U2000 system, which of the following menus can be used to check the current optical power of the device?
Which of the following protections are protected by electrical layer double transmission and selective reception?
The frame rate of STM-1, STM-4, STM-16, STM-64 signals are all the same 8000 frames/sec.
Which one is wrong in the description of hardware redundancy backup of PTN7900-32?
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?
L--16.1 indicates the type of optical interface. Which of the following descriptions is correct?
Which of the following descriptions about electrical layer service configuration is wrong?
The purpose of setting the upper and lower threshold alarms for performance monitoring through professional network management does not include which of the following?
During the troubleshooting process, if you need to loopback the protected services carried by the NG WDM device, which of the following operations need to be performed first when performing the loopback
operation?
Regarding PW labels and tunnel labels, which of the following statements are correct?
After the optical cable is cut, the optical power is normal and there is no ETH_LOS alarm, but the TUNNEL_LOCV alarm is not cleared. What is the most likely cause?
When creating a static TUNNEL, you need to specify the interface of the next hop. Which is the displayed address of the next hop?
What are the possible reasons for the failure of route calculation by the optical layer path (OCh level)?
Set up the alarm to report automatically, and report the alarm on the device side immediately after the alarm is generated. The alarm board pops up on the network management system. The user can view the alarm information in the alarm board, and does not need to
actively search for words. Unnecessary alarms can be set to not be automatically reported. At this time, the alarm will no longer be reported to the network, even if the synchronization operation is performed.
In the Huawei PTN7900 LTE solution, which of the following protection methods are used in the L2VPN part?
The multi-level connection monitoring mode (TCM) of OTN has three application forms. Which of the following is correct?
What are the values of each wavelength in the composite signal that the spectrum analyzer is mainly used for?
When creating a PTN tunnel, you can set the priority of the tunnel. There are 0, 1, and 7. The larger the value, the higher the priority.
TESTED 21 Nov 2024