Huawei H13-621 Online Practice Questions and Exam Preparation

Huawei H13-621 Online Questions & Answers

• Question 131:

  Which command can be runned to create file system for partitions in Linux.

  A. mkfs.ext3 /dev/sdb
  B. dd if=/dev/sdb of=/dev/zero bs=1024 count=1000
  C. dd if=/dev/zero of=/dev/sdb bs=1024 count=1000
  D. mkfs -N /dev/sdb
  A. mkfs.ext3 /dev/sdb

• Question 132:

  SAN storage system fault diagnosis, through ISM log can't judge fault, which log file can through the further analysis system ? (Select three Answers)

  A. in Debug information directory, the most important information is message and SES log
  B. log reset.txt record system restart times and reasons
  C. log debug.txt record system kernel log information
  D. log restart.txt record system restart times and reasons
  A. in Debug information directory, the most important information is message and SES log
  B. log reset.txt record system restart times and reasons
  C. log debug.txt record system kernel log information

• Question 133:

  Which aspects should be mainly considered in the host-side performance tuning? (Select 3 Answers)

  A. the file system type selection
  B. HBA card parameter adjustment
  C. LUN's reading and writing strategy
  D. LVM parameter adjustment
  A. the file system type selection
  B. HBA card parameter adjustment
  D. LVM parameter adjustment

• Question 134:

  Through which two ways can detect the hard disk bad way in 0ceanStor storage system? (Select two Answers)

  A. read/write failure automatic analysis
  B. hard disk medium active scan
  C. power test
  D. business data flow anomaly detection
  A. read/write failure automatic analysis
  B. hard disk medium active scan

• Question 135:

  Create RAID group through SATA, two controllers at the same time can access to RAID groups may cause degradation of the performance, what is the solution?

  A. adjust LUN belong to the same controller of the same RAID group
  B. adjust LUN writing strategy
  C. upgrade multipath software
  D. upgrade controller version
  A. adjust LUN belong to the same controller of the same RAID group

• Question 136:

  S5000 configure cache strategy, if use the write back mirroring. Because the mirror operation requires the interaction between two controllers, and the transmission of the dat

  A. Therefore the overall performance is worse than write back mirroring.
  B. True
  C. False
  A. Therefore the overall performance is worse than write back mirroring.

• Question 137:

  To improve performance, hot zone should be distributed in traditional hard disk inside as far as possible, because access data is fast in disk insidE.

  A. True
  B. False
  B. False

• Question 138:

  Which of the following statements about IO size are correct? (Select 3 Answers)

  A. the amount of data size of deciding an IO request carries once
  B. every IO data logically is discontinuous
  C. IOPS decreases continuously with the increase of data blocks
  D. bandwidth value increases with the increase of data blocks, but the trend of increase is gradually slow, until leveled off
  A. the amount of data size of deciding an IO request carries once
  C. IOPS decreases continuously with the increase of data blocks
  D. bandwidth value increases with the increase of data blocks, but the trend of increase is gradually slow, until leveled off

• Question 139:

  Which of the following statement about the IO load characteristics is wrong?

  A. IOPS continuously increase with the increase of data blocks
  B. the bandwidth value increases with the increase of data blocks, finally the trend of increase gradually slow, until leveled off
  C. I0 order is stronger, the performance is better
  D. the queue depth, the load pressure on storage is greater
  A. IOPS continuously increase with the increase of data blocks

• Question 140:

  Which of the following are true? (Select two Answers)

  A. remote replication from LUN mapping to the application server can read and write on it
  B. virtual snapshot mapping to the application server can read and write on it
  C. after full amount LUN copy finished, target LUN can mapping to the application server can read and write on it
  D. in process of incremental LUN copy, target LUN can mapping to the application server can read and write on it
  B. virtual snapshot mapping to the application server can read and write on it
  C. after full amount LUN copy finished, target LUN can mapping to the application server can read and write on it