Pass H31-311-ENU Exam in First Attempt Guaranteed 2021 Dumps!
H31-311-ENU Dumps Full Questions - Exam Study Guide
NEW QUESTION 45
Which of the following overheads is not an ODUk overhead?
- A. APS/PCC
- B. NJO
- C. PM
- D. TCM
Answer: B
NEW QUESTION 46
Which of the following is the meaning of SFD in the Ethernet frame structure?
- A. Start frame delimiter
- B. Preamble
- C. Frame check sequence
- D. Payload
Answer: A
NEW QUESTION 47
When the LCAS function is used, which of the following overhead bytes are used to transmit control information? (Multiple Choice)
- A. K4
- B. M1
- C. K2
- D. H4
Answer: A,D
NEW QUESTION 48
In the case of 1+1 linear MSP, which of the following switching modes do not require the enabling of the APS protection protocol? (Multiple Choice)
- A. Dual-ended non-revertive mode
- B. Single-ended revertive mode
- C. Single-ended non-revertive mode
- D. Dual-ended revertive mode
Answer: B,C
NEW QUESTION 49
Automatic laser shutdown (ALS): When no optical signal is received, the ALS function automatically shuts down the corresponding optical module. This function protects onsite maintenance personnel.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 50
When a VLAN-based service type is configured, which of the following functions must be enabled on the port?
- A. Flow control
- B. Auto-negotiation mode
- C. Entry detection
- D. Broadcast packet suppression
Answer: C
NEW QUESTION 51
WDM multiplexes the optical signals at multiple rates (wavelengths) over one fiber for transmission. The digital signals carried by these optical signals must have the same rate and data format.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 52
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. TRUE
- B. FALSE
Answer: B
NEW QUESTION 53
The TAG attribute cannot be set for the internal port VCTRUNK of the board on the NMS.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 54
The SP3D board supports 63 E1 services.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 55
PDM uses the polarization beam splitter to divide the laser into two perpendicular directions: x and y.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 56
During the backup and restoration of the network configuration data of the U2000 using scripts, you can change the directory for saving the exported files.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 57
Which of the following logical functional modules are involved in processing clock signal? (Multiple Choice)
- A. SPI
- B. SETS
- C. RST
- D. MCF
Answer: A,B
NEW QUESTION 58
In the case of MSP, you need to set the MSP protocol ID of each NE. To ensure that each ID is unique, you are advised to set the MSP protocol ID to the same value as the NE ID.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 59
The management scope of an OMSn is the path from the input optical port on a multiplexer unit at the transmit site to the output optical port on a demultiplexer unit at the receive site, which is called an optical multiplexing section (OMS) path.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 60
Which of the following are the device-level protection schemes of SDH products? (Multiple Choice)
- A. Cross-connect and timing board protection
- B. Power supply protection
- C. TPS protection
- D. System control board protection
Answer: A,B,C,D
NEW QUESTION 61
The error correction capability of FEC is measured with the encoding gain.
Which of the following statements about the encoding gain is incorrect?
- A. The encoding gain of AFEC is larger than that of FEC.
- B. When the BER is constant, the OSNR saved by the correction encoding is called encoding gain.
- C. The encoding gain of the in band FEC is larger than that of the outband FEC.
- D. The error correction capability of FEC increases with the encoding gain.
Answer: C
NEW QUESTION 62
Which of the following statements about U2000 license is incorrect?
- A. The U2000 license file is named in the "xxxxxxx.dat" format.
- B. Each license file corresponds to the equipment serial number (ESN) of one U2000 computer, and therefore can be used only on the corresponding computer.
- C. Formal U2000 license varies depending on operating system platforms. You must apply for a U2000 license based on the specific operating system.
- D. Do not modify license files. Otherwise, the license files will fail.
Answer: C
NEW QUESTION 63
When multiple users need to share the same VCTRUNK and use the same VLAN ID, the QinQ technology can be used.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 64
The SNCP switching speed can be improved if you classify the SNCP services that have the same source, sink, or route into groups.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 65
The difference between a dispersion compensation fiber and a common fiber is that the dispersion compensation fiber has a negative dispersion coefficient at ().
- A. 1310 nm
- B. 1650 nm
- C. 800 nm
- D. 1550 nm
Answer: D
NEW QUESTION 66
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_SESR
- B. ODUk_PM_SES
- C. ODUk_PM_UAS
- D. ODUk_PM_ES
Answer: B
NEW QUESTION 67
......
Huawei-certification Free Certification Exam Material from ExamcollectionPass with 190 Questions: https://www.examcollectionpass.com/Huawei/H31-311-ENU-practice-exam-dumps.html