FREE ACA Storage and Networking Questions and Answers

Question 1

A/An _________________ is a copy of data on a disk at a certain point in time.

Accepted Answer

snapshot

Answer

image

Answer

template

Answer

EIP

Question 2

Which method is not supported by OSS to create a bucket?

Accepted Answer

Through the OSS cmd tool

Answer

Through OSS API/SDK

Answer

Through ECS instance filesystem directory operation

Answer

Through a cloud console

Question 3

A large shopping mall deploys a new video surveillance system. The five-floor building in which the mall is located installed 35 HD cameras to monitor the major exits. The surveillance system is deployed on an ECS instance, which has four 2 TB data disks to store video data. However, video data grows rapidly and the engineers find that the ECS will run out of storage space within 2 weeks.

In this case, _____________ product is thought to be the best solution for addressing the storage challenge while ensuring quick access to historical video data when needed.

Accepted Answer

OSS

Answer

Container Service

Answer

ECS

Answer

CDN

Question 4

Which node type in DataWorks can edit the Python code to operate data in MaxCompute?

Accepted Answer

PyODPS Node

Answer

SQL Node

Answer

Data Integration Node

Answer

Data Analytics Node

Question 5

DataWorks provides two billing methods: Pay-As-You-Go (post-payment) and subscription (pre-payment). When DataWorks is activated in pay-as-you-go mode, which of the following billing items will not apply?

Accepted Answer

Task nodes created by developers

Answer

Data integration tasks executed

Answer

Resources consumed by data development and debugging

Answer

Storage costs for project data

Question 6

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

Accepted Answer

Task

Answer

Compute

Answer

Edge

Answer

Gateway

Question 7

Where is the metadata (e.g., table schemas) in Hive stored?

Accepted Answer

Stored in the RDBMS like MySQL

Answer

Stored in the Hadoop Distributed File System (HDFS)

Answer

Stored in the Hive metastore database

Answer

Stored in the cloud storage like Alibaba Cloud OSS

Question 8

Your company stores user profile records in an OLTP database. 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?

Accepted Answer

Ingest using Hive

Answer

Ingest using Apache HBase

Answer

Ingest using Apache Spark

Answer

Ingest using Apache Kafka

Question 9

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.

Accepted Answer

size table_a;

Answer

desc table_a;

Answer

show table table_a;

Answer

analyze table table_a;

Question 10

In a MaxCompute command line, if you want to view all tables in a project, you can execute the command:

Accepted Answer

desc tables;

Answer

show tables;

Answer

list tables;

Answer

describe tables;