Practice Free H12-931_V2.0-ENU Exam Online Questions
Which of the following descriptions about ODUk ring network protection is wrong?
- A . For enhanced ODUk ring network protection, there is no need to set a management node. Setting a management node has no effect on the protection.
- B . The protocol can be started only after the protection configuration of each station on the ring network is completed.
- C . ODUk ring network protection is mainly used in ring networking for distributed services. It protects multiple distributed services between all sites by occupying two different ODUk channels.
- D . Ordinary ODUk ring network protection does not require the setting of a management node.
Which of the following statements about the position of the dispersion module in the signal flow is wrong?
- A . If there is an OAU board, the DCM is placed between the TDC/RDC of the OAU
- B . If there is only one OBU board, the DCM is placed after the OBU
- C . If there are two OBU boards, the DCM is placed between the two OBUs.
- D . OTM station usually pre-fills 20KM DCM before sending OBU
NE1NE2NE3 form a chain network. There is a VC4 service between NE1 and NE3. NE2 is a pass-through site. After the configuration is completed, NE3 site reports the HP-SLM alarm of C2 byte mismatch. What are the testing points at this time?
- A . NE1 sends C2 byte
- B . NE2 westbound C2 byte
- C . NE2 eastbound C2 byte
- D . NE3 receives C2 byte
Which of the following options are correct for describing the three application forms of OTN multi-level connection monitoring mode (TCM)? (Multiple choice)
- A . Cascade Mode
- B . Overlap Mode
- C . Layer Benefit Model
- D . Nested mode
When Huawei OTN and ZTE OTN equipment are connected, the ODUO and ODU1 time slots of Huawei OTN equipment adopt the sequential mode. Which of the following statements is correct? (Multiple choice)
- A . The order of ODU1 is the same
- B . The order of ODU1 is different
- C . The order of ODU0 is the same
- D . The order of ODU0 is different
Which of the following does not belong to simple flow classification?
- A . VLAN PRL
- B . ACL
- C . MPLS EXP
- D . IP DSCP
SYNLOCK V3 devices can achieve different clock accuracy levels through different single-board configurations. Which of the following can SYNLOCK V3 achieve? (Multiple choice)
- A . SEC
- B . LPR
- C . TNC
- D . LNC
Which of the following comparisons of commonly used optical fibers G.652 and G.655 are correct? (Multiple choice)
The core diameter of AG52 is larger than that of G.655
The chromatic dispersion coefficient of BG52 is smaller than that of G.655
CG52 can withstand greater fiber input power than G.655
The attenuation coefficient of DG52 is lower than that of G.655
The REMOTE_FAULT alarm on the branch board is (), indicating that there is no valid signal sent to the client-side device from the branch board port on the other end.
When creating a single-station optical crossover, an error message appears saying "Wrong fiber direction selection". Which of the following is the possible reason?
- A . The network element network management time is not synchronized
- B . "Create Reverse Crossover" was not selected during configuration
- C . The physical fiber connection of the device is wrong
- D . Lack of logical fiber between boards