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質問 # 17
Which of the following are key roles in data governance? (Select all that apply)
- A. Data Owner
- B. Data Analyst
- C. Chief Information Officer (CIO)
- D. Data Scientist
- E. Data Steward
正解：A、C、E
質問 # 18
What is a metadata management challenge?
- A. Leveraging the information from distributed sources
- B. Data corruption over time
- C. Ensuring availability of source systems
- D. Information sources are limited
正解：A
質問 # 19
Match each Atlas feature with its description.
正解：
解説：
質問 # 20
What is a typical task of a data engineer during a data analytics project?
- A. Planning and performing A/B testing
- B. Exploring and examining data to find hidden patterns
- C. Transforming data into a format that can be easily analyzed
- D. Presenting financial benefits to executive stakeholders
正解：C
質問 # 21
What is a privacy regulation that aims to protect the personal data of European Union citizens?
- A. GDPR
- B. HIPAA
- C. CCPA
- D. FERPA
正解：A
質問 # 22
What is a common use case for a document-based NoSQL database like MongoDB?
- A. Performing complex SQL queries
- B. Managing hierarchical data
- C. Storing structured tabular data
- D. Tracking real-time data streams
正解：B
質問 # 23
Which of the following data structures in Python is immutable?
- A. Tuple
- B. Dictionary
- C. Set
- D. List
正解：A
質問 # 24
What is the main programming language supported by Apache Spark?
- A. C++
- B. Python
- C. Java
- D. Ruby
正解：B
質問 # 25
Which tool provides fine-grained access control and security for Hadoop components?
- A. Apache HBase
- B. Apache Knox
- C. Apache Ranger
- D. Apache Atlas
正解：C
質問 # 26
Which tool builds batch processing as a special case of stream data processing?
- A. Apache Flink
- B. Apache Hive
- C. Apache Oozie
- D. Apache Spark
正解：A
質問 # 27
Which of the following are characteristics of the Hadoop ecosystem? (Select all that apply)
- A. Single-node architecture
- B. Real-time processing
- C. Batch processing
- D. Low fault tolerance
- E. Scalability
正解：C、E
質問 # 28
What is the purpose of sensor operators in Apache Airflow?
- A. Use a poke method to monitor external processes
- B. Move data sequentially from one system to another
- C. Perform validation checks in parallel
- D. Use triggers to report each successive retry
正解：A
質問 # 29
A manufacturing organization intents to minimize production costs by analyzing real-time data after implementing IoT tools.
Which business driver would be affected if the organization follows this strategy?
- A. Operational efficiency
- B. New sources of revenue
- C. Product choices
- D. Customer experience
正解：A
質問 # 30
In Python, which primitive data type covers real rational and irrational numbers?
- A. Float
- B. Boolean
- C. Integer
- D. String
正解：A
質問 # 31
Which Sqoop validation type checks the row counts between the source and target databases, and tries to ensure that the counts match?
- A. Validator
- B. ValidationFailureHandler
- C. ValidationThreshold
- D. Eval
正解：C
質問 # 32
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