H31-311_V2.5 Practice Test Questions Updated 200 Questions
Huawei H31-311_V2.5 Dumps - Secret To Pass in First Attempt
Huawei H31-311_V2.5 (HCIA-Transmission V2.5) exam is designed to test the candidate's knowledge and skills in the field of transmission networks. HCIA-Transmission V2.5 certification is of great importance to those who want to pursue a career in the telecommunications industry as it provides a comprehensive understanding of the transmission technologies and protocols used in telecommunications networks.
NEW QUESTION # 87
Suppose 2 VC-12 time slots need to be bound to the VCTRUNK1 of the N2EFS4 board. When there are 8 VC4 slots on the N2EFS4 board, which of the following slots meets the requirements?
- A. VC-12 Time slots 1 and 2 for the 8th VC-4
- B. VC-12 time slot 1 and 2 for the first VC4
- C. VC-12 time slots for the second VC4 33 and 34
- D. VC-12 time slots 1 and 2 for the fourth VC4
Answer: D
NEW QUESTION # 88
QinQ technology can be used when multiple users need to share the same VCTRUK and use the same VLAN ID.
- A. Error
- B. True
Answer: B
NEW QUESTION # 89
The scope of management of OMSn is the path from the input optical port on the multiplexer unit of the sending site to the output optical port on the multiplexer unit of the receiving site, called the optical multiplexing segment (OMS) path.
- A. Error
- B. True
Answer: B
NEW QUESTION # 90
The OTN signal has a fixed pad period, the same frame period as the SDH signal.
- A. True
- B. False
Answer: B
NEW QUESTION # 91
Only one TCM can be used at one site
- A. True
- B. False
Answer: B
NEW QUESTION # 92
According to the formula "ODUk rate = 239/(239k) x STM-N frame rate", ODU4 The rate is equal to the 239/235xSTM-N Pa rate.
- A. True
- B. False
Answer: B
NEW QUESTION # 93
Optical module parameter "L-64.2" in "2" indicates which of the following working windows?
- A. 1550nm
- B. 1610nm
- C. 1310 nm
- D. 880 nm
Answer: A
NEW QUESTION # 94
Which of the following can be used as the central wavelength of the pump source in EDFA? (Multiple choice).
- A. 1510nm
- B. 1480nm
- C. 1310nm
- D. 980 nm
Answer: B,D
NEW QUESTION # 95
Automatic Laser Shutdown (ALS): When no optical signal is received, the ALS function automatically turns off the corresponding optical module. This feature protects field maintenance personnel.
- A. Error
- B. True
Answer: B
NEW QUESTION # 96
The MAC loopback and PHY loopback are used for fault location. When the MAC loopback is set to in loop, the PHY loopback can be set according to the actual situation.
- A. True
- B. False
Answer: B
NEW QUESTION # 97
Which of the following is the main advantage of SDH? (Multiple choice).
- A. standard interface.
- B. High compatibility.
- C. Powerful OAM
- D. Synchronous multiplexing.
Answer: A,B,C,D
NEW QUESTION # 98
Which of the following alarm/event storage modes does U2000 support? (Multiple choice).
- A. Manual dumping
- B. Automatic pouring
- C. Dump the alarm log periodically
- D. overflow does invert ()
Answer: A,C,D
NEW QUESTION # 99
Bait-doped fiber amplifiers (EDFAs) are a key component of the new generation of optical communication systems. Which of the following is the feature of EDFA? Multiple Choice) □
- A. Amplification of any wavelength
- B. High output meritorious service
- C. Low noise index
- D. High gain
Answer: B,C,D
NEW QUESTION # 100
In the Windows operating system, the log files of the U2000 program are stored in the () directory of the U2000 installation disk.
- A. /U2000/Client
- B. /u2000/server/log
- C. /U2000/server
- D. /U2000/client/log
Answer: B
NEW QUESTION # 101
When the sender detects that the b6-b8 of the K2 byte is 110, it means that the sender has reported an alarm ().
- A. MS RIF
- B. R THE
- C. R LOF
- D. MS-AIS
Answer: A
NEW QUESTION # 102
Which of the following layers define the protocols that control the network layer? The protocol for this layer applies to logical links, i.e. end-to-end connectivity between two devices.
- A. Transport Layer
- B. Network layer
- C. Application layer
- D. Data link layer
Answer: A
NEW QUESTION # 103
Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?
- A. SPI <> MST<> RST <> MSA <> MSP >HPT
- B. SPI <> RST <> MSA<> MSP<> MST <> HPT
- C. SPI <> RST <> MST <> MSP<> MSA <> HPT
- D. SPT<> MS <> MSA<> RST > MSP<> HPT
Answer: C
NEW QUESTION # 104
The clock unit can only access the external clock source as the timing signal source of the system through the external clock interface. In addition; It can also output a processed clock and provide a clock source for other devices that need timing.
- A. True
- B. False
Answer: B
NEW QUESTION # 105
The1310nm and 1550nm transmission windows are low loss windows. In DWDM systems, only the 1560m transfer window is used. Which of the following is the main cause?
- A. The nonlinear effect of the B.1550 nm-wavelength region is small.
- B. The 1550nm wavelength region is suitable for long-distance transmission.
- C. The EDFA operating wavelength flatness region is contained in this window.
- D. None of the above
Answer: C
NEW QUESTION # 106
Fiber loss includes bending loss, absorption loss and scattering loss.
- A. True
- B. False
Answer: B
NEW QUESTION # 107
The interval between two adjacent pointer alignment events is at least () frames.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: D
NEW QUESTION # 108
TU-AIS is often encountered during network maintenance. Which of the following alerts can trigger a TU-AIS alert? (Multiple choice).
- A. B2-EXC
- B. R-LOS
- C. AU-LOP
- D. HP-TIM
Answer: A,B,C,D
NEW QUESTION # 109
Which of the following logic function blocks are involved in processing clock signals? (Multiple choice).
- A. SPl
- B. MCF
- C. SETS
- D. RST
Answer: A,C
NEW QUESTION # 110
On a Layer 2 switching device, if the Ethernet port is an Access port, the port can only receive Ethernet frames without a VLAN tag or Ethernet frames with the same VLAN ID as the default VLAN ID of the port.
- A. True
- B. False
Answer: B
NEW QUESTION # 111
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