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Questions # 1:

There are three types of node instances in an E-MapReducecluster: master, core, and _____ .

Score 2

Options:
A.

task

B.

zero-load

C.

gateway

D.

agent

Questions # 2:

In a scenario where a large enterprise plans to use MaxCompute to process and analyze its data, tens

of thousands of tables and thousands of tasks are expected for this project, and a project team of 40

members is responsible for the project construction and O&M. From the perspective of engineering,

which of the following can considerably reduce the cost of project construction and management?

Score 2

Options:
A.

Develop directly on MaxCompute and use script-timed scheduling tasks

B.

Use DataWorks

C.

Use Eclipse

D.

Use a private platform specially developed for this project

Questions # 3:

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

Options:
A.

select size from table_a;

B.

size table_a;

C.

desc table_a;

D.

show table table_a;

Questions # 4:

In order to improve the processing efficiency when using

MaxCompute, you can specify the partition when creating a

table. That is, several fields in the table are specified as

partition columns. Which of the following descriptions aboutMaxCompute partition table are correct? (Number of correct

answers: 4)

Options:
A.

In most cases, user can consider the partition to be the

directory under the file system

B.

User can specify multiple partitions, that is, multiple

fields of the table are considered as the partitions of the

table, and the relationship among partitions is similar to

that of multiple directories

C.

If the partition columns to be accessed are specified

when using data, then only corresponding partitions are

read and full table scan is avoided, which can improve the

processing efficiency and save costs

D.

MaxCompute partition only supports string type and the

conversion of any other types is not allowed

E.

The partition value cannot have a double byte characters

(such as ChinesE.

Questions # 5:

If a task node of DataWorks is deleted from the recycle bin, it can still be restored.

Options:
A.

True

B.

False

Questions # 6:

If the DataWorks(MaxCompute) tables in your request belong to two owners. In this case, Data

Guard(DataWorks component) automatically splits your request into two by table owner.

Score 1

Options:
A.

True

B.

False

Questions # 7:

In MaxCompute, you can use Tunnel command line for data upload and download. Which of the

following description of Tunnel command is NOT correct:

Score 2

Options:
A.

Upload: Supports file or directory (level-one) uploading. Data can only be uploaded to a single table

or table partition each time.

B.

Download: You can only download data to a single file. Only data in one table or partition can be

downloaded to one file each time. For partitioned tables, the source partition must be specified.

C.

Resume: If an error occurs due to the network or the Tunnel service, you can resume transmission of

the file or directory after interruption.

D.

Purge: Clears the table directory. By default, use this command to clear information of the last three

days.

Questions # 8:

MaxCompute takes Project as a charged unit. The bill is charged according to three aspects: the

usage of storage, computing resource, and data download respectively. You pay for compute and

storage resources by the day with no long-term commitments.

Score 1

Options:
A.

True

B.

False

Questions # 9:

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

Score 1

Options:
A.

True

B.

False

Questions # 10:

Resource is a particular concept of MaxCompute. If you want to use user-defined

function UDF or MapReduce, resource is needed. For example: After you have prepared UDF, you must

upload the compiled jar package to MaxCompute as resource. Which of the following objects are

MaxCompute resources? (Number of correct answers: 4)

Score 2

Options:
A.

Files

B.

Tables: Tables in MaxCompute

C.

Jar: Compiled Java jar package

D.

Archive: Recognize the compression type according to the postfix in the resource name

E.

ACL Policy

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