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Guide for Dell Data Science Foundations

Quiz Dell Data Science Foundations

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Quiz

1/10
Data Integration Techniques
Which of the following best describes the ETL process in data integration?
Select the answer
1 correct answer
A.
It involves extracting data from various sources, transforming it into a consistent format, and then loading it into a target system
B.
It directly loads raw data into the target system without any transformation
C.
It only transforms data without prior extraction
D.
It extracts data and stores it temporarily without loading

Quiz

2/10
Data Warehouse Architecture
Which component of a data warehouse architecture is mainly responsible for extracting, transforming, and loading data from various sources?
Select the answer
1 correct answer
A.
Staging area
B.
Data Mart
C.
ETL tool
D.
Data governance layer

Quiz

3/10
ETL Processes and Tools
In the ETL process, which stage is primarily responsible for cleansing, aggregating, and standardizing data before loading it into the target system?
Select the answer
1 correct answer
A.
Extract
B.
Transform
C.
Load
D.
Validate

Quiz

4/10
Data Analytics and Reporting
What is a primary benefit of leveraging data analytics in generating business reports?
Select the answer
1 correct answer
A.
Enhanced decision-making with actionable insights
B.
Increased reliance on guesswork
C.
Promotion of data inconsistencies across systems
D.
Limited access to historical trends

Quiz

5/10
Database Management Systems
What are the ACID properties in database management systems, and why are they crucial for ensuring reliable transactions?
Select the answer
1 correct answer
A.
Atomicity, Consistency, Isolation, Durability
B.
Availability, Consistency, Isolation, Scalability
C.
Atomicity, Concurrency, Integrity, Durability
D.
Aggregation, Consistency, Indexing, Durability

Quiz

6/10
Cloud Storage Solutions
Which storage service is generally used to mount a shared file system across multiple virtual machines?
Select the answer
1 correct answer
A.
File storage
B.
Object storage
C.
Block storage
D.
Tape storage

Quiz

7/10
Business Intelligence Concepts
Which tool is widely used for creating interactive visual dashboards in a business intelligence environment?
Select the answer
1 correct answer
A.
Power BI
B.
Tableau
C.
QlikView
D.
SAP BusinessObjects

Quiz

8/10
Data Management and Governance
What is a primary benefit of implementing centralized data management and governance in an organization?
Select the answer
1 correct answer
A.
It reduces data redundancy and improves data consistency
B.
It makes data less accessible to users
C.
It eliminates the need for data quality controls
D.
It increases the cost of data operations

Quiz

9/10
Big Data Technologies
Which of the following is a core characteristic of Big Data?
Select the answer
1 correct answer
A.
Velocity
B.
Volume
C.
Variety
D.
All of the above

Quiz

10/10
Data Lifecycle Management
Which mechanism in Salesforce Data Cloud helps in tracking data changes over time?
Select the answer
1 correct answer
A.
Data snapshots
B.
Data replication
C.
Audit logs
D.
Data merging
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  • Quiz name:Dell Data Science Foundations
  • Total number of questions:654
  • Number of questions for the test:50
  • Pass score:80%

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