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NEW QUESTION # 24
In Python, which type of non-linear list always has a common root?
- A. Trees
- B. Graphs
- C. Queues
- D. Stacks
Answer: A
NEW QUESTION # 25
In Python, which non-primitive data structure can only be a collection of primitive data types?
- A. List
- B. Tuple
- C. Array
- D. Dictionary
Answer: C
NEW QUESTION # 26
What skill is essential for a data engineer to efficiently transform and clean raw data into usable formats?
- A. Data warehousing
- B. ETL (Extract, Transform, Load) processes
- C. Data visualization
- D. Machine learning
Answer: B
NEW QUESTION # 27
What is characteristic of HBase?
- A. Data warehouse infrastructure that can compile SQL queries and run the jobs in cluster
- B. High-level language platform for analyzing and querying large data sets stored in HDFS
- C. Tool that performs real-time write operations on large datasets using Key/Value pairs
- D. Tool that combines SQL, streaming, and complex analytics
Answer: C
NEW QUESTION # 28
Match each database type with its description.
Answer:
Explanation:
NEW QUESTION # 29
In Python, which primitive data type covers real rational and irrational numbers?
- A. Integer
- B. Boolean
- C. String
- D. Float
Answer: D
NEW QUESTION # 30
An organization plans to establish a data governance process for a data lake.
What is the correct sequence of steps required to implement the process?
- A. 1. Define the roles and responsibilities of actors within the data governance process
2. Operationalize the data governance process and assist the deployment team
3. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment
4. Understand the current and future states of data governance and identify remaining gaps - B. 1. Define the roles and responsibilities of actors within the data governance process
2. Operationalize the data governance process and assist the deployment team
3. Understand the current and future states of data governance and identify remaining gaps
4. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment - C. 1. Define the roles and responsibilities of actors within the data governance process
2. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment
3. Operationalize the data governance process and assist the deployment team
4. Understand the current and future states of data governance and identify remaining gaps - D. 1. Develop the business value statement and a baseline for ongoing measurement of the data governance deployment
2. Define the roles and responsibilities of actors within the data governance process
3. Operationalize the data governance process and assist the deployment team
4. Understand the current and future states of data governance and identify remaining gaps
Answer: B
NEW QUESTION # 31
What is the purpose of Apache Airflow?
- A. Workflow automation
- B. Data visualization
- C. Data processing
- D. Data storage
Answer: A
NEW QUESTION # 32
What is metadata in the context of data governance?
- A. Data encryption keys
- B. Data about data
- C. Data access logs
- D. Data quality metrics
Answer: B
NEW QUESTION # 33
What is a characteristic of the Kerberos role in a Hadoop ecosystem?
- A. Secure user identification over insecure network
- B. Bind-based authentication
- C. Used for authentication and authorization
- D. Designed to access directory services
Answer: A
NEW QUESTION # 34
Which phase of a data analytics project involves data engineers extracting, transforming, and loading data from various sources into a centralized repository?
- A. Data exploration
- B. Data ingestion
- C. Data modeling
- D. Data visualization
Answer: B
NEW QUESTION # 35
Which NoSQL database type is best suited for handling graph-based data structures and complex relationships?
- A. Graph database
- B. Key-value store
- C. Column-family store
- D. Document store
Answer: A
NEW QUESTION # 36
An organization wants to simplify the data ingestion configuration process through simple click, drag, and drop type actions.
Which tool provides an easy to use graphical user interface for building data pipeline data flows?
- A. Apache Hadoop
- B. Apache Airflow
- C. Apache Pig
- D. Apache Spark
Answer: B
NEW QUESTION # 37
Which skill is crucial for a data engineer to effectively manage and optimize large-scale data processing systems?
- A. Data analysis
- B. Cloud computing
- C. Front-end development
- D. Graphic design
Answer: B
NEW QUESTION # 38
Which Python library provides the foundation for SciPy?
- A. Pandas
- B. NLTK
- C. NumPy
- D. scikit-learn
Answer: C
NEW QUESTION # 39
What are three programming languages supported by Apache Spark?
- A. Python, C, and Scala
- B. PL/SQL, R, and Scala
- C. Python, R, and Scala
- D. Python, R, and C++
Answer: C
NEW QUESTION # 40
What is the primary use of sets in Python?
- A. Storing unique elements
- B. Storing key-value pairs
- C. Storing ordered sequences
- D. Storing hierarchical data
Answer: A
NEW QUESTION # 41
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