H13-711_V3.0 Practice Exam Tests Latest Updated on Nov-2022
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NEW QUESTION 251
In the HDFS copy placement strategy, what is the distance between different servers in the same rack?
- A. 0
- B. 1
- C. 2
- D. 3
Answer: C
NEW QUESTION 252
Which of the following descriptions about Zookeeper features is wrong?
- A. Message updates can only succeed or fail, with no intermediate states.
- B. A message needs to be received by more than half of the servers.it will be able to successfully write to disk
- C. Updates sent by the client are applied in the order in which they were sent.
- D. The number of Zookeeper nodes must be odd.
Answer: D
NEW QUESTION 253
Which process is described in the Map stage shown in the figure below?
- A. Ccombine
- B. Partition
- C. Sort
- D. Spill/Merge
Answer: A
NEW QUESTION 254
All nodes of ZooKeeper can handle read requests.
- A. False
- B. True
Answer: B
NEW QUESTION 255
What is the file format of data storage in HBase?
- A. TextFile
- B. HLog
- C. SequenceFile
- D. HFile
Answer: D
NEW QUESTION 256
Which statement about the DataNodel of HDFS in Huawei Fusioninsight HD system is correct?
- A. Periodically send the block-related information of this node to the NameNode
- B. Blocks stored in different DataNodes must be different
- C. Blocks on a DataNode. can be the same
- D. Does not check the validity of the data
Answer: A
NEW QUESTION 257
The emergence of HFS solves the need to store a large number of small files (below 10MB) in HDFS. At the same time, some mixed scenes of large files (above 10MB) should be stored
- A. False
- B. True
Answer: B
NEW QUESTION 258
In the task scheduling process of YARN, which of the following is the task that the ApplicationMaster is responsible for?
Answer:
Explanation:
Applyforandreceiveresources
NEW QUESTION 259
The containeri of Spark tasks can run multiple tasks.
- A. False
- B. True
Answer: A
NEW QUESTION 260
In the era of big data, which of the following challenges are faced by enterprises?
- A. Diversified data structures.
- B. Scattered data has problems such as noise, missing, and non-standard storage types, which requires a lot of data preprocessing.
- C. technological advancements of competitors.
- D. Data is scattered among various departments of the enterprise, and the same data is stored in different formats within each department.
Answer: A,B,C,D
NEW QUESTION 261
Which object cannot be managed by Fusion Insight manager?
- A. Spark
- B. HDFS
- C. Host OS
- D. YARN
Answer: C
NEW QUESTION 262
What types of operations are included in "SELECT aa.salary, bb.address FROM employee aa JoiN SELECT adress FROM employee info where provine= 'zhejiang') bb ON aa.nanme=bb.name? (Multiple choice)
- A. Create a table
- B. Import data
- C. Subqueries
- D. JOIN query
Answer: C,D
NEW QUESTION 263
The most basic unit of distributed storage in HBase is Region.
- A. False
- B. True
Answer: B
NEW QUESTION 264
Spark Streaming? The fault tolerance mechanism means that if any partition in the RDD fails, it can be recalculated and generated according to its parent RDD. If the parent RDD is lost, you need to go to the disk to find the original data.
- A. False
- B. True
Answer: A
NEW QUESTION 265
In Hadoop, if yarn.scheduler.capacity.root.Queue A.
minimum-user-limitpercent is set to 50, which of the following statements is wrong?
- A. QueueA must ensure that each user gets at least 50% of the resources.
- B. If there are already 2 user tasks running in QueueA, then the task submitted by the third user needs to wait for the release of resources.
- C. Each user in QueueA can only get up to 50% of the resources.
- D. A user submits a task and can use 100% of QueueA's resources.
Answer: C
NEW QUESTION 266
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