ACA-BigData1試験無料問題集（77題）「Alibaba Cloud ACA Big Data Certification 認定」

出題：1

MaxCompute is a fast and fully-managed TB/PB-level data warehousing solution provided by Alibaba Cloud. Which of the following product features are correct? ______ (Number of correct answers: 3) Score 2

A. Distributed architecture

B. Fast real-time response

C. Efficient transaction processing

D. Multi-level management and authorization

E. High security and reliability

正解：A,B,E 解答を投票する

出題：2

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 the RDBMS like MySQL

D. Stored in ZooKeeper

正解：C 解答を投票する

出題：3

You want to understand more about how users browse your public website. For example, you want to know which pages they visit prior to placing an order. You have a server farm of 100 web servers hosting your website. Which is the most efficient process to gather these web servers across logs into traditional Hadoop ecosystem.

A. Just copy them into HDFS using curl

B. Import all user clicks from your OLTP databases into Hadoop using Sqoop

C. Channel these clickstreams into Hadoop using Hadoop Streaming

D. Ingest the server web logs into HDFS using Apache Flume

正解：D 解答を投票する

出題：4

JindoFS in E-MapReduce provided by SmartData uses OSS as the storage back end.
Score 1

A. True

B. False

正解：A 解答を投票する

出題：5

In MaxCompute, if error occurs in Tunnel transmission due to network or Tunnel service, the user can resume the last update operation through the command tunnel resume;.
Score 1

A. True

B. False

正解：A 解答を投票する

出題：6

Which of the following is not proper for granting the permission on a L4 MaxCompute table to a user. (L4 is a level in MaxCompute Label-based security (LabelSecurity), it is a required MaxCompute Access Control (MAC) policy at the project space level. It allows project administrators to control the user access to column-level sensitive data with improved flexibility.) Score 2

A. If no permissions have been granted to the user and the user does not belong to the project, add the user to the project. The user does not have any permissions before they are added to the project.

B. The user need to create a project in simple mode

C. If the user manages resources that have labels, such as datasheets and packages with datasheets, grant label permissions to the user.

D. Grant a specific operation permission to the user.

正解：B 解答を投票する

出題：7

A start-up company wants to use Alibaba Cloud MaxCompute to provide product recommendation services for its users. However, the company does not have much users at the initial stage, while the charge for MaxCompute is higher than that of ApsaraDB RDS, so the company should be recommended to use MaxCompute service until the number of its users increases to a certain size.
Score 1

A. True

B. False

正解：A 解答を投票する

出題：8

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 service is activated

B. after MaxCompute service is activated

C. Spark on MaxCompute Machine Learning project is created

D. after PAI experiments are created on PAI

正解：D 解答を投票する

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