H31-411-ENU by Huawei Valid Free Exam Practice Test

Question 1

Which of the following causes the radio unit to receive the channel RTWP/RSSI imbalance alarm? (Multiple choice)

A. External interference of the main set or diversity antenna of the radio unit B. RF unit hardware failure C. The primary or diversity receive channel of the RF unit is faulty D. CPRI interface failure

Correct Answer: A,C

Question 2

Which of the following factors is not considered when calculating the downlink budget?

A. Downlink maximum propagation loss B. Feeder losses C. Base station receiver sensitivity D. Human body loss

Correct Answer: C

Question 3

Which of the following cell bandwidth allocations does LTE support? (Multiple choice)

A. 5MHz B. 1.25MHz C. 10MHz D. 1.4MHz

Correct Answer: A,C,D

Question 4

When treating fault, if we can guarantee the fault can be solved, do not need to back up data.

A. False B. True

Correct Answer: A

Question 5

To Huawei Probe&Assistant software side, about the dropped calls formula definition, which of the following is correct?

A. Call Drop Rate = eRAB AbnormRel/eRAB Setup Success *100% B. Call Drop Rate = eRAB AbnormRel/RRC Connection Setup Success *100% C. Call Drop Rate = eRAB AbnormRel/eRAB NormRel *100% D. Call Drop Rate = eRAB AbnormRel/eRAB Release Total *100%

Correct Answer: A

Question 6

In LTE system, what is the length of the wireless subframe?

A. 0.5ms B. 10ms C. 1ms D. 7ms

Correct Answer: C

Question 7

Which of the following statements are wrong?

A. BCCH may be mapped to DL-SCH B. BCCH may be mapped to BCH C. DTCH is mapped to MCH D. CCCH is mapped to DL-SCH

Correct Answer: C

Question 8

Which of the MIMO system gains listed below are obtained using the relative independence of spatial channel fading? (Multiple choice)

A. Interference suppression gain B. Array gain C. Spatial multiplexing gain D. Diversity gain

Correct Answer: C,D

Question 9

AAU is often used in scenes where the top surface is tense.

A. False B. True

Correct Answer: B

Question 10

Modifying the device protocol type through the MML command "MOD ENODEB" requires resetting the base station, otherwise it will not take effect.

A. False B. True

Correct Answer: B

Question 11

Time division duplex (TDD) mobile communication systems require strict time synchronization.

A. False B. True

Correct Answer: B

Question 12

The eNodeB supports to configure the S1/X2 interface through Link and End-point.

A. False B. True

Correct Answer: B

Question 13

The TDS is enabled in the original BBU and the RRU type is RRU3151(e)-fae. You need to use the RRU3152-e to open the LTE single-mode site. This allows to share a BBU with the TDS.

A. False B. True

Correct Answer: B

Question 14

Which of the following is not a function of eNodeB webLMT?

A. Alarm management B. Signaling tracking C. Topology management D. MML

Correct Answer: C

Question 15

In PTN plus CE networking scenarios, which interface should be the S1 interface physical connection use UMPT veneer?

A. CPRI B. FE/GE1 C. FE/GE0 D. USB

Correct Answer: B

Huawei HCIA-LTE(Huawei Certified ICT Associate-LTE) - H31-411-ENU Exam Practice Test