ACA-BigData1無料問題集「Alibaba Cloud ACA Big Data Certification」

質問 1

Apache Spark included in Alibaba E-MapReduce(EMR) is a fast and general-purpose cluster computing system. It provides high-level APIs in Java, Scala, Python and R, and an optimized engine that supports general execution graphs. It also supports a rich set of higher-level tools. Which of the following tools does not be included in Spark?
Score 2

（A）TensorFlow for AI

（B）Spark SQL for SQL and structured data processing

（C）MLlib for machine learning

（D）GraphX for graph processing

正解：A 解答を投票する

質問 2

DataWorks can be used to create all types of tasks and configure scheduling cycles as needed. The supported granularity levels of scheduling cycles include days, weeks, months, hours, minutes and seconds.

（A）False

（B）True

正解：A 解答を投票する

質問 3

You are working on a project where you need to chain together MapReduce, Hive jobs.
You also need the ability to use forks, decision points, and path joins. Which ecosystem project should you use to perform these actions?

（A）Apache Spark

（B）Apache Zookeeper

（C）Apache Oozie

（D）Apache HUE

正解：C 解答を投票する

質問 4

Machine Learning Platform for Artificial Intelligence (PAI) node is one of the node types in DataWorks business flow. It is used to call tasks created on PAI and schedule production activities based on the node configuration. PAI nodes can be added to DataWorks only _________ .
Score 2

（A）after PAI experiments are created on PAI

（B）after PAI service is activated

（C）Spark on MaxCompute Machine Learning project is created

（D）after MaxCompute service is activated

正解：A 解答を投票する

質問 5

Where is the meta data(e.g.,table schemas) in Hive?
Score 2

（A）Stored along with the data in HDFS

（B）Stored as metadata on the NameNode

（C）Stored in ZooKeeper

（D）Stored in the RDBMS like MySQL

正解：D 解答を投票する

質問 6

When odpscmd is used to connect to a project in MaxCompute, the command ______ can be executed to view the size of the space occupied by table table_a.
Score 2

（A）select size from table_a;

（B）size table_a;

（C）show table table_a;

（D）desc table_a;

正解：D 解答を投票する

質問 7

Where is the meta data (e.g.,table schemas) in Hive?

（A）Stored along with the data in HDFS

（B）Stored as metadata on the NameNode

（C）Stored in ZooKeeper

（D）Stored in the RDBMS like MySQL

正解：D 解答を投票する

質問 8

When we use the MaxCompute tunnel command to upload the log.txt file to the t_log table, the t_log is a partition table and the partitioning column is (p1 string, p2 string).
Which of the following commands is correct?

（A）tunnel upload log.txt t_log/(p1="b1", p2="b2")

（B）tunnel upload log.txt t_log/p1="b1"/p2="b2"

（C）tunnel upload log.txt t_log/p1="b1", p2="b2"

正解：C 解答を投票する

ACA-BigData1 無料問題集「Alibaba Cloud ACA Big Data Certification」

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