Practice Free H12-931_V2.0-ENU Exam Online Questions
Regarding the UGUUI dual-machine system, which of the following statements is correct? (Multiple choice)
- A . Currently, U2000 V1R9 dual-machine supports Solaris, Linux, and Windows operating systems.
- B . U2000 active and standby servers usually use the same license file
- C . The protection mechanism of the high availability system lies in two aspects: â‘ Database synchronization and backup of the primary and backup sites; â‘¡ Automatic switching of application software between the primary and backup sites.
- D . In the process of dual-machine networking, a single site can only configure one network card IP address. That is, only configure the system IP address, and the Veritas heartbeat IP, Veritas replication IP, and network management application IP are not configured separately, and all reuse the system IP address.
For NG-SDH equipment equipped with dual main control boards, when the main control board is upgraded, which of the following statements is correct?
- A . After the standby main control board is upgraded, the original main control board can be upgraded by switching between the main and standby boards.
- B . Upgrade the active MPU first, then upgrade the standby MPU
- C . First complete the upgrade of the standby main control board, then hard reset the current main control board to switch the main and standby boards, and then upgrade the current standby main control board.
- D . First upgrade the active MPU and then upgrade the standby MPU in the same way.
In a point-to-point WDM networking scenario, the signal-to-noise ratio of a single channel is low, while other channels are normal. What is the reason for this being impossible?
- A . The optical power of the OTU board corresponding to this wave at the transmitting end has decreased
- B . The fiber pigtail attenuation from the OTU board corresponding to this wave to the combiner increases
- C . Increased attenuation on the optical path
- D . The gain slope of the amplifier changes
When the ACT indicator light of the SDH board is off, it means that the board has a hardware failure and cannot be used.
- A . True
- B . False
One day, the customer expanded the service carrying capacity. It planned to add two 10GE LAN services using the 100G channel between station A and station B. The link is shown in the figure. The T boards at stations A and B reported ODU2_LOFLOM, and the carrying service was unavailable. The current alarms of the equipment were queried, and no equipment hardware failure alarms were reported.
The remaining four 10GE link services carried by the current 100G channel are normal. Which of the following descriptions of the cause and solution of this fault are correct? (Multiple choice)
- A . The corresponding channel rate of the new service in the N board of station A and B should be changed to the speed-up mode (11.3G)
- B . First, temporarily rule out the circuit board hardware problem
- C . The "Service Mapping Path" of the corresponding port of the newly added service in the T-board should be set to "MAC Transparent Mapping (10.7G)"
- D . The "Business Mapping Path" of the corresponding port of the newly added business in the T board should be set to "Bt Transparent Mapping (11.1G)"
Which of the following statements about the configuration, testing and maintenance of IPA functions is correct? (Multiple choice)
- A . The IPA function is only applicable to Raman amplifiers, not to ordinary amplifiers
- B . After the IPA function is successfully started, when the amplifier board detects LOS, the optical power of its output port becomes the safe optical power.
- C . Select "Configuration/IPA Management" in the function tree of the network element manager to configure the value of IRA startup delay
- D . When the fiber break is repaired and IPA cannot be ended, it may be because the IPA protection group is not configured with a "detection board" but only with an auxiliary detection board, which reports an alarm that triggers IPA.
- E . The purpose of testing the IPA function is to verify that: if a fiber is broken at any point in the fiber path included in the IPA pair, the amplifier included in the IPA pair can be turned off. After the fiber is broken, the amplifier can be automatically turned on, and the power change is within 0.5dB.
Which of the following are the functions of MPLS-TPOAM? (Multiple choice)
- A . Ping
- B . Traceroute
- C . LB
- D . LT
Which of the following descriptions of the signal flow of an OTM site (OSN8800 equipment) is wrong?
- A . Service receiving direction: Line–FIU–OAU–M40–LSX–SDH signal
- B . Service sending direction: SDH signal–LSX–M40–OBU1–FIU–line
- C . Service sending direction: SDH signal–LSX–M40–OBU1–line
- D . OSC receiving direction: line–FIU–SC2
Which of the following descriptions about branch SNCP protection is wrong?
- A . When configuring a branch SNCP, you need to set the SNCP subtype.
- B . The crossover granularity is GE or Any signal
- C . Trigger conditions are: board not in place, SF, SD
- D . Branch SNCP protection uses the dual-transmit and selective-receive function of electrical layer crossover to protect the customer-side services accessed by the branch board.
What types of boards need to be upgraded when upgrading NG-SDH equipment?
- A . 123
- B . 321
- C . 213
- D . 312