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EMC D-DS-OP-23 Exam Syllabus Topics:

EMC Dell Data Scientist and Data Engineering Optimize 2023 Sample Questions:

Question 1

How is replication implemented in Redis?

A. The developer copies and pastes the data in multiple databases
B. Meta information is generated based on the client-server communication protocol
C. Data is shared among many computers to enable fault tolerance and data accessibility
D. Client-server communication protocol is used, whereby every client replicates data from the server

Question 2

Which encoding standard is used by Python 2 to store strings?

A. Unicode
B. ASCII
C. Static
D. Binary

Question 3

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

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

Question 4

Which of the following data structures in Python is immutable?

A. Tuple
B. Dictionary
C. List
D. Set

Question 5

What is a metadata management challenge?

A. Leveraging the information from distributed sources
B. Information sources are limited
C. Ensuring availability of source systems
D. Data corruption over time

Solutions: