D-DS-OP-23無料問題集「EMC Dell Data Scientist and Data Engineering Optimize 2023」

質問 1

Which of the following data structures in Python is immutable?

（A）Dictionary

（B）List

（C）Tuple

（D）Set

正解：C 解答を投票する

質問 2

Which feature of Apache Kafka makes it suitable for handling high-throughput data streams?

（A）Static schema enforcement

（B）Partitioning and replication

（C）In-memory data storage

（D）Only supports batch processing

正解：B 解答を投票する

質問 3

What is the primary storage system used by the Hadoop ecosystem?

（A）Cassandra

（B）HDFS

（C）MongoDB

（D）Amazon S3

正解：B 解答を投票する

質問 4

Why is Python commonly used for building data pipelines?

（A）Its readability and extensive libraries

（B）It requires compilation for execution

（C）It only supports batch processing

（D）It has no libraries for data manipulation

正解：A 解答を投票する

質問 5

Which Python library formats data into dataframes?

（A）NLTK

（B）Pandas

（C）scikit-learn

（D）NumPy

正解：B 解答を投票する

質問 6

What is the primary advantage of using dictionaries in Python data pipelines?

（A）Dictionaries offer O(1) lookup time

（B）Dictionaries maintain element order

（C）Dictionaries allow duplicate values

（D）Dictionaries support mathematical operations

正解：A 解答を投票する

質問 7

The penalty that the EU supervisory authority levies on an organization that fails to comply with the General Data Protection Regulation (GDPR) is the greater of 4% of total global annual turnover or revenue, or a fixed fine amount.
What is the fixed fine amount, in millions of Euros?

（A）20

（B）5

（C）10

（D）40

正解：A 解答を投票する

質問 8

Which CouchDB function can be used to create a document?

（A）Update

（B）List

（C）Insert

（D）Create

正解：A 解答を投票する

質問 9

What is a primary task of a data engineer during a data analytics project?

（A）Designing and integrating infrastructure, analyzing algorithms, modifying source code, and writing system instructions

（B）Preparing the Big Data environment to be utilized by data scientists and other business stakeholders

（C）Ensuring the successful initiation, planning, design, execution, monitoring, controlling, and closure of the project

（D）Installing, configuring, testing, and maintaining operating systems, application software, and system management tools

正解：B 解答を投票する

質問 10

In order for a table to be normalized in 4NF, what two conditions must be met?

（A）Table is in BCNF
No multi-valued dependencies exist

（B）Table is in 3NF
No dependencies exist

（C）Table is in 3NF
No multi-valued dependencies exist

（D）Table is in BCNF
Multi-valued depen

正解：A 解答を投票する

D-DS-OP-23 無料問題集「EMC Dell Data Scientist and Data Engineering Optimize 2023」

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