[Oct 23, 2021] H31-311 Exam Dumps - Huawei Practice Test Questions
New Real H31-311 Exam Dumps Questions
NEW QUESTION 62
The STM-64 has () AU pointers.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: A
NEW QUESTION 63
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 64
Which of the following effects is used by the Raman amplifier?
- A. Self-phase modulation (SPM)
- B. Four-wave mixing (FWM)
- C. Dispersion
- D. Raman scattering
Answer: D
NEW QUESTION 65
When the LCAS function is used/ which of the following overhead bytes are used to transmit control information? (Multiple Choice)
- A. K2
- B. K4
- C. M1
- D. H4
Answer: B,D
NEW QUESTION 66
In an OSN 550, the CXL slot houses a functional board that integrates the system control and communication (SCC) unit, cross-connect unit, and clock unit. The functional board is available in multiple types depending on the functions and access capabilities provided by the OSN 550.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 67
The PRBS can be used to test whether an SDH service is normal and whether the protection switching function is normal.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 68
Configuring an EPLAN service as a ring is not recommended. If the EPLAN service is configured as a ring, the STP protocol must be enabled on the network to prevent broadcast storms.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 69
Which of the following technologies is the main difference between an open DWDM system and an integrated DWDM system?
- A. Wavelength conversion technology
- B. Optical supervisory technology
- C. Optical amplification technology
- D. Multiplexing/Demultiplexing technology
Answer: A
NEW QUESTION 70
Which of the following maintenance signals is transmitted from a downstream site to an upstream site in OTN?
- A. LCK
- B. ATS
- C. IAE
- D. BDI
Answer: D
NEW QUESTION 71
Which of the following statements about the multiplex section remote error indication (MS-REI) is correct?
1. The B2 byte indicates the transmission channel.
2. The Ml byte indicates the transmission channel.
3. MS-REI is transmitted from the sink to the source.
4. MS-REI is transmitted from the source to the sink.
5. Indicates the number of detected bit errors after the sink receives the MS signals.
- A. 2 , 3 , 5
- B. 2 , 4 , 5
- C. 1 , 3 , 5
- D. 1 , 4 , 5
Answer: A
NEW QUESTION 72
The pointer is used for alignment and indicates the start position of VC-n in the corresponding AU or TU frame. In this way, the receive end can correctly remove the corresponding VC from the STM-N, and then split the VC and C encapsulation to separate low-rate signals, such as PDH. That is, low-rate tributary signals can be directly dropped from the STM-N signal.
- A. TRUE
- B. FALSE
Answer: A
NEW QUESTION 73
Which of the following are optical-layer trails? (Multiple Choice)
- A. OSC
- B. OCH
- C. OMS
- D. OTS
Answer: A,B,C,D
NEW QUESTION 74
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. All of the above
- B. VLANID
- C. MPLS label
- D. QinQ technology
Answer: A
NEW QUESTION 75
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 _UAS
- B. ODUk_PM_SES
- C. ODUk_PM_SESR
- D. ODUk_PM_ES
Answer: B
NEW QUESTION 76
The error correction capability of FEC is measured with the encoding gain. Which of the following statements about the encoding gain is incorrect?
- A. When the BER is constant, the OSNR saved by the correction encoding is called encoding gain.
- B. The error correction capability of FEC increases with the encoding gain.
- C. The encoding gain of the inband FEC is larger than that of the outband FEC.
- D. The encoding gain of AFEC is larger than that of FEC.
Answer: C
NEW QUESTION 77
The device IP addresses of the gateway NE and non-gateway NEs must be set in the same network segment.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 78
A MAC address consists of 48 bits and is globally unique. Which of the following is the meaning of the MAC address whose eighth bit is 1?
- A. Bicast address
- B. Unicast address
- C. Broadcast address
- D. Multicast address
Answer: D
NEW QUESTION 79
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