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NEW QUESTION 31
Which of following are the configuration modes of new NEs? (Multiple Choice)
- A. Uploading
- B. Downloading
- C. Copying NE data
- D. Manual configuration
Answer: A,C,D
NEW QUESTION 32
The U2000 can be flexibly interconnected with different third-party NMSs through northbound interfaces (NBIs), and provides information about physical inventory and alarms to the upper-layer NMSs.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 33
OChr means that the electrical supervisory technology is used.
- A. FALSE
- B. TRUE
Answer: B
NEW QUESTION 34
In a WDM system, using a dielectric thin film filter (TFF) is ideal when fewer than ( ) wavelengths are used.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 35
Which of the following is not a non-linear effect?
- A. Self-phase modulation (SPM)
- B. Raman scattering
- C. Dispersion
- D. Four-wave mixing (FWM)
Answer: C
NEW QUESTION 36
According to ITU-T recommendations, the requirement that the MSP switching time should be within 50 ms is conditional. For example, the number of NEs on an entire ring network is less than 16.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 37
When bit errors are detected in the B2 byte, which of the following alarms is reported by the peer end?
- A. RS-BBE
- B. MS-BBE
- C. MS-FEBBE
- D. MS-AIS
Answer: C
NEW QUESTION 38
Which of the following are basic functions of the U2000? (Multiple Choice)
- A. Performance management
- B. Security management
- C. Alarm management
- D. Topology management
Answer: A,B,C,D
NEW QUESTION 39
The fiber core refractive index n1 must be ( ) the cladding layer refractive index n2, which is a necessary condition for transmitting optical signals in optical fibers.
- A. equal to
- B. higher than
- C. lower than
Answer: B
NEW QUESTION 40
Which of the following statements about the sequence of a signal flow between the SDH interface and the cross-connect unit is correct?
- A. SPI< >RST< >MST< >MSP< >MSA< >HFT
- B. SPI< >RST< >MSA< >MSP< >MST< >HFT
- C. SPT< >MST< >MSA< >RST< >MSP< >HPT
- D. SPI< >MST< >RST< >MSA< >MSP< >HFT
Answer: A
NEW QUESTION 41
EPL services exclusively use ports and bandwidths, and different users may need to share resources. Which of the following methods can be used to isolate user data?
- A. VLANID
- B. MPLS label
- C. All of the above
- D. QinQ technology
Answer: C
NEW QUESTION 42
The SL64 board can be used in an OSN 2500.
- A. FALSE
- B. TRUE
Answer: A
NEW QUESTION 43
The 1310 nm and 1550 nm transmission windows are low-loss windows. In DWDM systems, only the 1550 nm transmission window is used. Which of the following is the major cause?
- A. None of the above
- B. The 1550 nm wavelength area is applicable to long-haul transmission.
- C. The non-linear effect of the 1550 nm wavelength area is small.
- D. The working wavelength flatness area of the EDFA is included in this window.
Answer: D
NEW QUESTION 44
When a fiber cut test is performed on a normal MSP ring, which of the following alarms is reported?
(Multiple Choice)
- A. APSJNDI
- B. R-LOS
- C. BD STATUS
- D. TU-AIS
Answer: A,B
NEW QUESTION 45
When severely errored seconds (SESs) are present in the PM section at the ODUk layer, which of the following alarms is reported on the NMS?
- A. ODUk_PM_SES
- B. ODUk_PM_ES
- C. ODUk_PM_SESR
- D. ODUk _PM _UAS
Answer: A
NEW QUESTION 46
The receive end performs BIP-8 check for the unscrambled STM-16 frame. If the BIP-8 check result XOR the value of the B1 byte contained in the following STM-16 frame is 10001100, it indicates that () bit error blocks exist in the STM-16 frame.
- A. 0
- B. Unclear
- C. 1
- D. 2
Answer: A
NEW QUESTION 47
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