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NEW QUESTION # 14
What is the main programming language supported by Apache Spark?
- A. Java
- B. Ruby
- C. Python
- D. C++
Answer: C
NEW QUESTION # 15
What are three programming languages supported by Apache Spark?
- A. Python, C, and Scala
- B. Python, R, and C++
- C. Python, R, and Scala
- D. PL/SQL, R, and Scala
Answer: C
NEW QUESTION # 16
Which of the following are components of the Apache Spark Streaming architecture? (Select all that apply)
- A. Driver node
- B. Worker node
- C. Discretized streams (DStreams)
- D. HDFS storage
- E. Kafka topics
Answer: A,B,C
NEW QUESTION # 17
Which of the following are data ingestion tools commonly used in the Hadoop ecosystem? (Select all that apply)
- A. Apache Flume
- B. Apache Sqoop
- C. Apache Flink
- D. Apache Kafka
- E. Apache Beam
Answer: A,B,D
NEW QUESTION # 18
What enables Apache Spark to process data more efficiently than Hadoop's MapReduce?
- A. JobTracker functionality has been replaced by YARN
- B. Intermediate processing data is always written to disk
- C. Data is cached in memory whenever possible
- D. Apache Flink is the compute engine
Answer: C
NEW QUESTION # 19
Which Sqoop validation type checks the row counts between the source and target databases, and tries to ensure that the counts match?
- A. Eval
- B. Validator
- C. ValidationThreshold
- D. ValidationFailureHandler
Answer: C
NEW QUESTION # 20
What is the purpose of memory management in Apache Flink?
- A. Control how much memory the runtime operations use
- B. Convert all of the data into Java objects
- C. Ensure no disk space is ever required
- D. Eliminate the need for serialization of the data
Answer: A
NEW QUESTION # 21
You are designing a database for an e-commerce data warehouse. The data is normalized in 1NF format and will be used to create data marts for different departments inside the organization.
Which schema type should be used for this requirement?
- A. Columnar
- B. Star
- C. Graph
- D. Highly Normalized
Answer: B
NEW QUESTION # 22
What is the data governance role that leverages the data for business purposes, such as increasing sales or reducing manufacturing costs?
- A. Data custodian
- B. End user
- C. Data steward
- D. Security specialist
Answer: B
NEW QUESTION # 23
What is the primary use of sets in Python?
- A. Storing ordered sequences
- B. Storing key-value pairs
- C. Storing unique elements
- D. Storing hierarchical data
Answer: C
NEW QUESTION # 24
Which CouchDB function can be used to create a document?
- A. Insert
- B. List
- C. Update
- D. Create
Answer: C
NEW QUESTION # 25
What is a significant advantage of using a columnar store NoSQL database for analytical workloads?
- A. Real-time data synchronization
- B. Efficient storage of hierarchical data
- C. High-speed transaction processing
- D. Optimized query performance on large datasets
Answer: D
NEW QUESTION # 26
Which IoT data processing tool enables businesses to make real-time decisions to capitalize on the Analytics of Things (AoT)?
- A. Apache Kafka
- B. Nautilus
- C. Apache NiFi
- D. Pravega
Answer: B
NEW QUESTION # 27
Refer to the exhibit.
Which shows a table named Student.
What changes must be made to the table in order to achieve 1NF?
- A. Make Zip the primary key in the table
- B. Split table into two tables named Student and Zip
- C. Split table into two tables named Student and DoB
- D. Remove duplicate rows in the table
Answer: D
NEW QUESTION # 28
What is a common use case for a document-based NoSQL database like MongoDB?
- A. Performing complex SQL queries
- B. Storing structured tabular data
- C. Managing hierarchical data
- D. Tracking real-time data streams
Answer: C
NEW QUESTION # 29
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