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質問 # 101
Both PDH and SDH have globally harmonized standards.
- A. False
- B. True
正解：A
質問 # 102
After the U2000 sends configuration data to the network element, if the SCC single board authentication fails, the network element enters the installation state.
- A. True
- B. Error
正解：A
質問 # 103
Which of the following logic function blocks are involved in processing clock signals? (Multiple choice).
- A. SPl
- B. SETS
- C. MCF
- D. RST
正解：A、B
質問 # 104
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. True
- B. Error
正解：A
質問 # 105
Which of the following is the frame indicated by the VC-4 J1 byte by the AU pointer of the current frame?
- A. None of the above
- B. Current framework
- C. Next frame
- D. Previous frame
正解：C
質問 # 106
Which of the following statements about extending the ECC is incorrect?
- A. Extended ECC is divided into Auto Extended ECC and Extended ECC in specified mode.
- B. You can enable auto-scaling ECC on up to four network elements. Under the Hand Extension
- C. Extended ECC in specified mode indicates that a server and client need to be specified.
- D. Auto-expanding ECC means an Ethernet port that uses a pass-through cable to connect two network elements
- E. C overlay, each server can link up to three clients.
正解：B
質問 # 107
The 1510nm optical monitoring channel can be effectively amplified after passing through EDF
- A. False
- B. True
正解：A
質問 # 108
The following is the frame structure of the STM-16?
- A. 9*270*16
- B. 9*270*64
- C. 9*270"4
- D. 9*270*1
正解：A
質問 # 109
Which of the following statements about the MST functional module is correct? (Multiple choice).
- A. MST returns bit error messages, but does not return a specific number of bit errors
- B. MST provides an E20 orderwire channel. .
- C. MST implements BIP-8 statistical computation of B2 bytes.
- D. MST is both the source and sink of MS. .
正解：B、D
質問 # 110
Establish Ethernet leased line service between HI (HQ) and H2 (branch) of enterprise H, and bind 5 in the corresponding VCTRUNK VC-12. When a VC-12 fails, the Ethernet dedicated line between H1 and H2 is interrupted. So, which of the following statements is true?
- A. Enable the LCAS feature on the VCTRUR port used by the Ethernet Leased Line service between H1 and H2. (Correct answer"
- B. Enable the QinQ function on the VCTRUNK port used by the Ethernet Leased Line service between H1 and H2.
- C. Enable the QinQ feature on the ports used by H1 and H2 Division's Ethernet Leased Line service.
- D. enables the LXAS feature on the port used by the Ethernet Leased Line service between H1 and H2.
正解：A
質問 # 111
TU-AIS is often encountered during network maintenance. Which of the following alerts can trigger a TU-AIS alert? (Multiple choice).
- A. AU-LOP
- B. B2-EXC
- C. R-LOS
- D. HP-TIM
正解：A、B、C、D
質問 # 112
Which of the following statements regarding the sequence of signal flows between the SDH interface and the cross-connecting unit is correct?
- A. SPI <> RST <> MSA<> MSP<> MST <> HPT
- B. SPI <> MST<> RST <> MSA <> MSP >HPT
- C. SPI <> RST <> MST <> MSP<> MSA <> HPT
- D. SPT<> MS <> MSA<> RST > MSP<> HPT
正解：C
質問 # 113
Which of the following is the configuration mode for the new NE?( Multiple choices).
- A. Upload
- B. Download
- C. Copy NE data
- D. Manual configuration
正解：A、C、D
質問 # 114
Which of the following statements about the EFS4 board are correct? (Multiple choice).
- A. The board has four FE ports. .
- B. The board interface is the LC interface.
- C. The plate must be used with the processing plate.
- D. The board supports three layers of text exchange. .
正解：A、D
質問 # 115
The Raman amplifer uses which of the following effects?
- A. Four-wave mixing (FWM).
- B. Raman scattering
- C. Self-phase modulation (SPM).
- D. Dispersion
正解：B
質問 # 116
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. False
- B. True
正解：A
質問 # 117
During service configuration, which of the following service levels cannot be selected?
- A. VC12
- B. VC3
- C. VC8
- D. vC4
正解：C
質問 # 118
The value of the MFAS byte increases with the sequence number of the OTUk/ODUK base frame and includes the most () base frames.
- A. 0
- B. 1
- C. 2
- D. 3
正解：C
質問 # 119
Which of the following is not the northbound interface provided by the U2000?
- A. XML
- B. ox
- C. SNMP
- D. CORBA
正解：B
質問 # 120
The number of ODU2e signals multiplexed into the ODU3 signal is the same as the number of ODU2 signals multiplexed into the ODU3 signal.
- A. False
- B. True
正解：A
質問 # 121
Which of the following is the electrical layer cost of OTN? (Multiple choice).
- A. OTUR
- B. ODUk
- C. OPUk
- D. och
正解：A、B、C
質問 # 122
Which of the following bytes can be used for wired phones between two REG devices?
- A. None of the above
- B. E1 and E2
- C. E1
- D. E2
正解：C
質問 # 123
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. False
- B. True
正解：A
質問 # 124
On the NMS system, the network element performance monitoring time is set to () minutes and () hours.
- A. 15.24
- B. 15.12
- C. 30.24
- D. 30.12
正解：A
質問 # 125
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