Huawei HCIA-Big Data V2.0 認定 H13-711 試験問題:
1. What is the correct HDFS DataNode statement in Huawei Fusioninsight HD system?
A) Does not check the validity of the data
B periodically sends the block of this node to the NameNode
Blocks stored by different DataNodes in C must be different
B) -Blocks on a DataNode can be the same
2. When a Spark application runs, if a certain operation fails, the entire app fails.
A) True
B) False
3. In Hadoop, if yam.schedulerxapacity.root.QueueA.minimum-user-limit-percent is set to 50, what is wrong with the following statement?
A) QueueA can only get up to 50% of resources per user
B) A user submits a task and can use 100% of QueueA's resources
C) QueueA must ensure that each user gets at least 60% of the resources
D) If there are already two user tasks running in QueueA, then the task submitted by the third user needs to wait for the resources to be released
4. Neither Spark nor Hadoop is suitable for iterative computing scenarios.
A) True
B) False
5. Which option in the Spark component is not a transformation operation?
A) reduceByKey
B) join
C) reduce
D) distinct
質問と回答:
質問 # 1 正解: B | 質問 # 2 正解: B | 質問 # 3 正解: A | 質問 # 4 正解: B | 質問 # 5 正解: C |