View All D-DS-OP-23 Actual Exam Questions Answers and Explanations for Free Nov-2024 [Q10-Q29]

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View All D-DS-OP-23 Actual Exam Questions Answers and Explanations for Free Nov-2024

The Most In-Demand EMC D-DS-OP-23 Pass Guaranteed Quiz 

NEW QUESTION # 10
Which skill is crucial for a data engineer to effectively manage and optimize large-scale data processing systems?

  • A. Data analysis
  • B. Graphic design
  • C. Front-end development
  • D. Cloud computing

Answer: D


NEW QUESTION # 11
Which component of the Apache Atlas framework allows metadata to be added to the Atlas environment?

  • A. Ingest/Export
  • B. Apps
  • C. Metadata Sources
  • D. Graph Engine

Answer: A


NEW QUESTION # 12
Which Cassandra data type represents a collection of key-value pairs, and is represented in curly brackets ({, }) and colon (:)?

  • A. Map
  • B. UUID
  • C. Set
  • D. List

Answer: A


NEW QUESTION # 13
In an Apache Spark Streaming environment, what acts as an entry point to the streaming system and provides methods to create and transform DStreams?

  • A. StreamingContext
  • B. Receiver
  • C. Streams API
  • D. Spark Core

Answer: A


NEW QUESTION # 14
In the ELT process, data is transformed after being loaded into the target system.
Which tools can be used for ELT? (Select all that apply)

  • A. Amazon Redshift
  • B. Apache Hadoop
  • C. Apache Spark
  • D. Microsoft SSIS
  • E. Talend

Answer: C,D,E


NEW QUESTION # 15
What is a characteristic of Pig?

  • A. Performs real-time reads and writes in HDFS
  • B. Alternative language to Java programming for MapReduce
  • C. Data warehouse infrastructure that manages jobs in the cluster
  • D. Uses HiveQL to translate SQL queries into MapReduce jobs

Answer: B


NEW QUESTION # 16
Which of the following describes Apache Flink?

  • A. A stream processing framework
  • B. A graph processing framework
  • C. A batch processing engine
  • D. A distributed file storage system

Answer: A


NEW QUESTION # 17
Which of the following are components of the Apache Spark Streaming architecture? (Select all that apply)

  • A. Discretized streams (DStreams)
  • B. HDFS storage
  • C. Kafka topics
  • D. Worker node
  • E. Driver node

Answer: A,D,E


NEW QUESTION # 18
What is the data governance role that leverages the data for business purposes, such as increasing sales or reducing manufacturing costs?

  • A. Data steward
  • B. End user
  • C. Security specialist
  • D. Data custodian

Answer: B


NEW QUESTION # 19
What is characteristic of HBase?

  • A. High-level language platform for analyzing and querying large data sets stored in HDFS
  • B. Tool that performs real-time write operations on large datasets using Key/Value pairs
  • C. Tool that combines SQL, streaming, and complex analytics
  • D. Data warehouse infrastructure that can compile SQL queries and run the jobs in cluster

Answer: B


NEW QUESTION # 20
Match each data type with its corresponding Redis data structure.

Answer:

Explanation:


NEW QUESTION # 21
Match each database type with its description.

Answer:

Explanation:


NEW QUESTION # 22
Which of the following are characteristics of the Hadoop ecosystem? (Select all that apply)

  • A. Scalability
  • B. Low fault tolerance
  • C. Real-time processing
  • D. Batch processing
  • E. Single-node architecture

Answer: A,D


NEW QUESTION # 23
What is a typical task of a data engineer during a data analytics project?

  • A. Planning and performing A/B testing
  • B. Transforming data into a format that can be easily analyzed
  • C. Exploring and examining data to find hidden patterns
  • D. Presenting financial benefits to executive stakeholders

Answer: B


NEW QUESTION # 24
Which of the following are key roles in data governance? (Select all that apply)

  • A. Data Steward
  • B. Data Scientist
  • C. Data Analyst
  • D. Chief Information Officer (CIO)
  • E. Data Owner

Answer: A,D,E


NEW QUESTION # 25
Which of the following are data ingestion tools commonly used in the Hadoop ecosystem? (Select all that apply)

  • A. Apache Sqoop
  • B. Apache Beam
  • C. Apache Flink
  • D. Apache Kafka
  • E. Apache Flume

Answer: A,D,E


NEW QUESTION # 26
What are two Spark libraries?

  • A. Spark SQL and GraphX
  • B. Spark SQL and RDD
  • C. Spark NoSQL and RDD
  • D. Spark NoSQL and GraphX

Answer: A


NEW QUESTION # 27
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. Star
  • B. Columnar
  • C. Graph
  • D. Highly Normalized

Answer: A


NEW QUESTION # 28
Match each Atlas feature with its description.

Answer:

Explanation:


NEW QUESTION # 29
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