H13-711-ENU事前に試験練習テストで使おう（最新500問題)
有効なH13-711-ENU試験解答PDF一年無料更新
質問 # 197
In many small file scenarios, Spark will start many tasks. When there is a Shuffle operation in the SQL logic, the number of hash buckets will be greatly increased, which will seriously affect the performance. In Fusioninsight, the () operator is usually used for small file scenarios to merge the partitions generated by the small files in the Table to reduce the number of partitions, so as to avoid generating too many hash buckets during shuffle and improve performance.
- A. connection
- B. join
- C. group by
- D. coalosce
正解：B
質問 # 198
What components does HBase use by default as its underlying file storage system?
- A. HDFS
- B. Kafka
- C. Memory
- D. File
正解：A
質問 # 199
KrbServer can provide kerberos functions for other components, which are used to prevent eavesdropping, prevent replay attacks, and protect data integrity.
- A. True
- B. False
正解：A
質問 # 200
When the number of nodes in the Zookeeper cluster is 5 nodes, how many nodes are equivalent to the disaster recovery capability of the cluster?
- A. 0
- B. None of the above
- C. 1
- D. 2
正解：C
質問 # 201
When installing a Fusionlnsight HD cluster in safe mode, which components must be installed? (Multiple choice)
- A. Zookeeper
- B. Krb Server
- C. LDAP Server
- D. HDFS
正解：B、C
質問 # 202
Flink is a computing framework combining batch processing and stream processing. Its core is a stream data processing engine for data classification and parallel computing.
- A. True
- B. False
正解：A
質問 # 203
Which of the following statements about the Ldap Server organizational model is correct? (Multiple choice)
- A. LDAP Server directory information is organized and stored based on a tree structure.
- B. Each node in the LDAP Server directory tree is called an entry and has its own unique and distinguishable name DN (Distinguished Name).
- C. Specific objects cannot be defined under organizational units.
- D. The root of the LDAP Server directory tree generally defines the domain name DC (Domain Component).
正解：A、B、D
質問 # 204
Which of the following statements about the reliability of Fusioninsight network security is correct? (Multiple choice)
- A. Avoid high load on the service plane from blocking the cluster management channel
- B. Prevent external attackers from invading actual business data through management channels
- C. Network plane isolation to avoid management and business bandwidth preemption and mutual interference
- D. Fusioninsight supports dividing the network into three levels: the cluster service plane, the cluster management plane, and the maintenance network outside the cluster, which are physically isolated from each other.
正解：A、B、C、D
質問 # 205
Which of the following descriptions about the key features of Flink is wrong?
- A. checkpoint implements Flink's fault tolerance
- B. Compared with Flink, SparkStreaming has lower latency
- C. The Flink stream processing engine can provide support for both stream processing and batch processing applications
- D. Compared with Streaming in FusionInght HD, Flink has higher throughput
正解：B
質問 # 206
Flume is used to collect data, and the basic unit of data transmitted by the device is?
- A. Event
- B. Split
- C. Block
- D. Packet
正解：A
質問 # 207
Which of the following is not a mandatory option when creating a Loader job?
- A. connection
- B. name
- C. Priority
- D. type
正解：C
質問 # 208
C. The channel acts like a queue and is used to temporarily cache the incoming data. When the Sink successfully sends the data to the next-hop Channel or the final destination, the data will be removed from the Channel.
- A. True
- B. False
正解：A
質問 # 209
Which of the following options belong to the data storage model of Hive?
- A. barrel
- B. Partition
- C. All above are correct
- D. table
- E. database
正解：C
質問 # 210
When the delay event occurs, the window has been closed and the calculation result has been produced. Which of the following processing methods is unreasonable? (Multiple choice)
- A. Reactivate closed windows and recalculate to correct results
- B. Collect delayed events for additional processing
- C. Delayed events must not ignore computation
- D. Treat delayed events as error messages and discard
正解：A、B、C、D
質問 # 211
topology will automatically end running after the task is completed.
- A. False
- B. True
正解：A
質問 # 212
Which of the following options does the type of time operation supported by Flink include? (Multiple choice)
- A. Processing time
- B. Acquisition time
- C. End time
- D. Event time
正解：A、D
質問 # 213
Assume that the minimum resource guarantee for each user is set to YARN.scheduler.capacity.root.QueueA.minimum-
User-limit-percent=25, then which of the following statement is wrong?
- A. When the second user submits a task, each user can get up to 50% of the resources
- B. When the third user submits the task, each user can get up to 33.33% of the resources
- C. When the fourth user submits a task, each user can get up to 25% of the resources
- D. When the fifth user submits a task, each user can get up to 20% of the resources
正解：D
質問 # 214
Flink is a unified computing framework combining batch processing and stream processing. Its core is a stream data processing engine for data distribution and parallel computing.
- A. True
- B. wrong
正解：A
質問 # 215
Which of the following are extensions of ElasticSearch? (Multiple choice)
- A. IKAnalyzer
- B. hadoop
- C. bigdesk
- D. head
正解：A、B、C、D
質問 # 216
In the Mapreduce process, by default, a fragment is a block and a mapTask.
- A. True
- B. False
正解：A
質問 # 217
The following figure shows the label storage strategy of HDFS. Observe the following figure, which data nodes will the HBase data be stored on? (Multiple choice)
- A. DataNode F
- B. DataNode B
- C. DataNode A
- D. DataNode E
正解：B、C
質問 # 218
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