Free H12-931-ENU Exam Braindumps certification guide Q&A
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NEW QUESTION 101
The ODU product label is shown in the picture. Which of the following statements is correct? (multiple choice).
- A. The transceiver interval of this ODU is 154MHz
- B. The transmitting frequency of this ODU is located in sub-band A of 7GHz
- C. The receiving frequency range is: 7582-7638MHz
- D. This ODU can be used as low station
Answer: A,B
NEW QUESTION 102
Regarding the configuration description of the U2000 northbound CORBA interface, what is wrong is
- A. In the U2000 CORBA configuration, configure at least one of the filtering virtual network element switch and virtual network element switch collar
- B. Set the host address, enter the host name or IP address according to the network management plan and design. The "host" mentioned here refers to the computer that provides CORBA services
- C. The U2000 northbound CORBA interface and the U2000 server run on the same machine, and the machine configuration is required to be able to install and run the U2000 server, and no additional hardware configuration is required
- D. The default port numbers of normal mode and SSL mode in the basic configuration of U2000 CORBA are different
Answer: A
NEW QUESTION 103
When planning a 1+1 HSB, the corresponding planning principles should be followed. Which of the following are not HSB planning principles?
- A. It is recommended to enable reverse switching to prevent the sender from performing invalid RDI switching due to signal fading
- B. If the recovery type is selected as the protection type, it is recommended to set the waiting recovery time within the range of 5-12 minutes, and it is recommended to set the default value of 10 minutes
- C. It is recommended to set the "Alarm reporting method" to "Report only to the protection group"
- D. Although 1+1 HSB does not limit the slot of the IF board, it is still recommended that the main/backup IF board be installed in the dual slot
Answer: A
NEW QUESTION 104
Commonly used test instruments for WDM system include? () (multiple choice)
- A. Data Service Tester
- B. Optical power meter
- C. Optical Time Domain Reflectometer
- D. 2M BER tester
- E. Multimeter
- F. Spectrum Analyzer
Answer: A,B,C,E,F
NEW QUESTION 105
It is found that the U2000 dual machine of the customer network is in the dual master state. In the measures and descriptions of the problem, the correct one is () (multiple choice)
- A. Run the command #vradmin -g datadg repstatus datarvg, and find that the data status is "consistent, up-to-date", which means that the primary and secondary data are not synchronized and need to be updated
- B. You can first check whether there is any abnormality in the operating status of the main and standby machines
- C. If it is a DCN problem, you can use the command #vradmin -g datadg repstatus datarvg at the main site to check the status of the high-availability system after the repair
- D. Check whether the heartbeat line between the main and standby machines is working properly
Answer: B,C,D
NEW QUESTION 106
There are two NG-SDH network elements A and B.
A is a gateway network element.
The network manager manages B through ECC routing through A.
The network manager can log in to A, but cannot log in to B through A.
What are the possible reasons? (multiple choice)
- A. The optical board connected to B does not create a logical board
- B. The main control board is abnormal
- C. Manually set up ECC routing
- D. Cross-connect board is not inserted
Answer: B,C,D
NEW QUESTION 107
Corresponding to the ISO seven-layer model, Ethernet corresponds to the physical and network layers of the seven-layer model. The Ethernet-defined specifications include the MAC sublayer and physical layer of the data link layer.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 108
OptiX OSN 1800 is a compact multi-service optical transport platform. What is wrong in the following description? ()
- A. 1588v2 transmission is not supported, and external time signal access is not supported
- B. OptiX OSN 1800II chassis provides a total of 8 service single board slots
- C. The maximum rate of a single channel is 10 Gbit/s (OTU2)
- D. The OptiX OSN 1800I chassis provides a total of 4 service single board slots
Answer: A
NEW QUESTION 109
What's not a trivial task for ASON's business recovery is
- A. Optimize to other path recovery
- B. Download network element database recovery
- C. Forced reactivation to restore
- D. Downgrade to traditional business reconstruction and restoration
Answer: B
NEW QUESTION 110
In the reference source monitoring window, if the queried SSM signal is DUS, it means that the clock signal is
- A. Unavailable clock
- B. Clock signal that meets G.811 quality requirements
- C. Clock signal that meets G.812 quality requirements
- D. Clock signal that meets the quality requirements of G.813
Answer: A
NEW QUESTION 111
If an NE is found on the U2000 network management to report an alarm of "NE is in a safe state", the operations that are not allowed on the U2000 are
- A. Download data from the NMS to the problematic NE
- B. Upload data from the network element side to the network management
- C. Data consistency check
- D. Alarm synchronization
Answer: B
NEW QUESTION 112
Which of the following statements about OTN reuse and overhead is wrong? ()
- A. ODUk combines OTU overhead and FEC overhead and maps to a standardized optical channel transmission unit to form OTUk
- B. The overhead of the OTN electrical layer unit is the associated overhead, which is transmitted together with the payload
- C. Client signals (such as IP/MPLS, Ethernet, SDH signals) are mapped to ODUk as ODU payload plus ODU overhead
- D. OTN optical layer overhead is non-path-associated overhead, and an independent optical supervisory channel OSC is responsible for transmission.
Answer: C
NEW QUESTION 113
Which of the following IP addresses is a class C IP address
- A. 10011010.01101110.10000000.01101111
- B. C2.A8.D2.e1
- C. 10.110.192.111
- D. 127.0.0.1
Answer: B
NEW QUESTION 114
Use end-to-end path configuration circuit on the network management, then there will be no discrete services on the network management, and it can ensure that the configured circuit is complete.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 115
The following descriptions about 1+1 protection and 1:1 protection of MPLS Tunnel are correct (multiple choice)
- A. The APS protocol protected by the MPLS Tunnel 1:1 transfers the protocol status and switching status to each other through the tunnel transmission
- B. MPLS Tunnel 1:1 protection has two types of services: double-ended switching and single-ended switching. MPLS Tunnel 1+1 protection only has single-ended switching.
- C. If you want to protect the MPLS Tunnel, you need to create an MPLS Tunnel protection group
- D. MPLS Tunnel 1+1 protected service with dual sending and selective receiving, MPLS Tunnel 1:1 protected service with single sending and single receiving
Answer: A,C,D
NEW QUESTION 116
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