Best Quality Huawei H31-311-ENU Exam Questions TorrentVCE Realistic Practice Exams [2021]
Critical Information To HCIA-Transmission(Huawei Certified ICT Associate-Transmission) Pass the First Time
NEW QUESTION 37
Which of the following is the meaning of "L" in the optical module parameter "L-64.2"?
- A. Transmission distance
- B. Dispersion coefficient
- C. Transmit wavelength
- D. Receive wavelength
Answer: A
NEW QUESTION 38
A two-fiber ring topology consisting of three NEs is arranged in the counterclockwise sequence as A, B, and C.
Services between A and C occupy the 48th VC-12 timeslot in the first VC-4 on the short path, and services between B and C also occupy the 48th VC-12 timeslot in the first VC-4 on the short path.
In this case, which of the following is the subnet type of the ring protection?
- A. Bidirectional MSP ring
- B. All of the above
- C. SNCP ring
- D. Unidirectional path protection ring
Answer: A
NEW QUESTION 39
Which of following are the configuration modes of new NEs? (Multiple Choice)
- A. Copying NE data
- B. Manual configuration
- C. Uploading
- D. Downloading
Answer: A,B,C
NEW QUESTION 40
The standard Ethernet frame length should not be less than 64 bytes.
Which of the following factors cause this limitation? (Multiple Choice)
- A. Minimum transmission distance
- B. MAC address
- C. Maximum transmission distance
- D. Working mechanism of conflict detection
Answer: C,D
NEW QUESTION 41
Which of the following is the functional unit that provides the interfaces related to the orderwire phone and serial data for the system?
- A. Auxiliary unit
- B. Tributary unit
- C. Line unit
- D. Cross-connect unit
Answer: A
NEW QUESTION 42
An unprotected chain consists of four NEs: NE1, NE2, NE3, and NE4. An end-to-end VC4 trail NE1-NE4 is created, and NE5 is added between NE2 and NE3 for capacity expansion. The original configuration remains unchanged, and no service is configured on NE5. In this case, the unprotected chain becomes NE1-NE2-NE5-NE3-NE4, and how many VC4 trails can be searched out?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: B
NEW QUESTION 43
When the lower-order resources of a device are insufficient, which of the following measures can be taken? (Multiple Choice)
- A. Configure a VC4 server trail.
- B. Combine available lower-order resources.
- C. Configure VC4 services.
- D. Use a cross-connect board with a larger lower-order cross-connect capacity.
Answer: B,C,D
NEW QUESTION 44
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. TRUE
- B. FALSE
Answer: A
NEW QUESTION 45
Which of the following local maintenance terminals can be used to manage MSTP devices?
- A. U2000 LCT
- B. U2000 Web LCT
- C. All of the above
- D. U2000 IP LCT
Answer: A
NEW QUESTION 46
Which of the following ITLI-T recommendations defines the OTN frame structure?
- A. G.975
- B. G.709
- C. G.652
- D. G.694
Answer: B
NEW QUESTION 47
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 48
Which of the following is not an EVPLAN feature?
- A. Bandwidth sharing
- B. Point-to-point and point-to-multipoint topologies
- C. Multipoint-to-multipoint topology
- D. Forwarding based on MAC addresses
Answer: B
NEW QUESTION 49
Assume that 2 x VC-12 timeslots need to be bound with VCTRUNK1 of the N2EFS4 board.
When 8 x VC-4 timeslots are available on the N2EFS4 board, which of the following timeslots meets the requirements?
- A. VC-12 timeslots 33 and 34 of the second VC-4
- B. VC-12 timeslots 1 and 2 of the first VC-4
- C. VC-12 timeslots 1 and 2 of the fourth VC-4
- D. VC-12 timeslots 1 and 2 of the eighth VC-4
Answer: C
NEW QUESTION 50
Compared with a dense wavelength division multiplexing (DWDM) system, a coarse wavelength division multiplexing (CWDM) system provides a certain number of wavelengths and a transmission distance within ( ) km, which greatly reduces system cost and has strong flexibility.
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 51
The STAT indicator of an SDH board is blinking red, on for 100 ms and off for 100 ms.
Which of the following is the meaning of the indicator status?
- A. Normal operating
- B. Hardware mismatch
- C. Hardware fault
- D. No power supply input
Answer: B
NEW QUESTION 52
According to the formula of "ODUk rate = 239/(239-k) x STM-N frame rate", the ODU4 rate is equal to 239/235 x STM-N frame rate.
- A. TRUE
- B. FALSE
Answer: B
NEW QUESTION 53
The Erbium Doped Fiber Amplifier (EDFA) is a key component of the new-generation optical communication system.
Which of the following are the features of the EDFA? (Multiple Choice)
- A. Low noise index
- B. Amplification of any wavelengths
- C. High gain
- D. High output power
Answer: A,C,D
NEW QUESTION 54
Which of the following can be the center wavelengths of the pump sources in an EDFA? (Multiple Choice)
- A. 1480 nm
- B. 1310 nm
- C. 980 nm
- D. 1510 nm
Answer: A,C
NEW QUESTION 55
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: C
NEW QUESTION 56
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