We have prepared Alibaba ACA Big Data certification sample questions to make you aware of actual exam properties. This sample question set provides you with information about the Alibaba ACA-BigData1 exam pattern, question formate, a difficulty level of questions and time required to answer each question. To get familiar with Alibaba Big Data (ACA) exam, we suggest you try our Sample Alibaba ACA-BigData1 Certification Practice Exam in simulated Alibaba certification exam environment.
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Alibaba ACA Big Data Sample Questions:
01. When using Alibaba Cloud MaxCompute, if you need to limit your users to have access to the data only within a Project, what operation should you perform from a security point of view?
a) Use ACL authorization to set the status to read-only for all users
b) Use Policy authorization to set the status to read-only for all users
c) Allow the object creator to access the object
d) Enable the data protection mechanism in the project, using set ProjectProtection=true;
02. Where is the meta data(e.g.,table schemas) in Hive?
a) Stored as metadata on the NameNode
b) Stored in the RDBMS like MySQL
c) Stored along with the data in HDFS
d) Stored in ZooKeeper
03. Which three types of node instances are available to use in an Alibaba Cloud E-MapReduce (EMR) cluster?
a) Task, Gateway & Master
b) Master, Core & Gateway
c) Master, Core & Task
d) Core, Agent & Gateway
04. Which command should you use in Alibaba Cloud MaxCompute CLI to view all the tables in a Project?
a) select tables;
b) desc tables;
c) use tables;
d) show tables;
05. A dataset includes the following items (time, region, sales amount). If you want to present the information above in a chart, ______ is applicable.
a) Bubble Chart
b) Tree Chart
c) Pie Chart
d) Radar Chart
06. Which node type in DataWorks can edit the Python code to operate data in MaxCompute?
a) ODPS MR Node
b) PyODPS
c) ODPS Script Node
d) SHELL node
07. 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) Spark
b) HUE
c) Zookeeper
d) Oozie
08. When using Hadoop Distributed File System (HDFS) in the Alibaba Cloud Big Data ecosystem, which Hadoop daemon is used to manage that file system?(c)
a) datanode
b) namenode
c) secondary namenode
d) node manager
09. Your company stores user profile records in an OLTP databases. You want to join these records with web server logs you have already ingested into the Hadoop file system. What is the best way to obtain and ingest these user records?
a) Ingest with Hadoop streaming
b) Ingest with sqoop import
c) Ingest using Hive
d) Ingest with Pig's LOAD command
10. What command can be executed to view the size of the space occupied by table table a using odpscmd?
a) select size from table_a;
b) size table_a;
c) desc table_a;
d) show table table_a;
Answers:
Question: 01
Answer: d |
Question: 02
Answer: b |
Question: 03
Answer: c |
Question: 04
Answer: d |
Question: 05
Answer: a |
Question: 06
Answer: b |
Question: 07
Answer: d |
Question: 08
Answer: a |
Question: 09
Answer: b |
Question: 10
Answer: c |
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