For an organization that requires immediate insight into business operations, which type of BI would be most appropriate?

  • Analytical BI
  • Operational BI
  • Strategic BI
  • Tactical BI
For an organization needing immediate insights into real-time business operations, Operational Business Intelligence (Operational BI) is most suitable. Operational BI focuses on monitoring and analyzing current data to support daily decision-making and operational activities. It provides up-to-the-minute information for faster response.

A business analyst is trying to analyze monthly sales data for the past three years. She wants to view sales by year, quarter, month, and day. What concept will aid her in viewing data at these different granularities?

  • Data Modeling
  • Data Normalization
  • Data Warehousing
  • Dimensional Modeling
Dimensional modeling is a technique used in data warehousing that enables the analysis of data at different granularities, such as year, quarter, month, and day. It involves creating fact tables and dimension tables to represent data hierarchies, facilitating efficient querying and reporting.

The design in which dimension tables are normalized, resulting in the formation of a structure that resembles a snowflake is called _______ schema.

  • Constellation
  • Galaxy
  • Snowflake
  • Star
A snowflake schema is a design approach in data warehousing where dimension tables are normalized to reduce data redundancy. This leads to a structure that resembles a snowflake due to the multiple related tables. It can help save storage space and improve data integrity but may require more complex queries.

_______ is a popular open-source ETL tool that can integrate with various data storage platforms.

  • Excel
  • Hadoop
  • SQL Server
  • Talend
Talend is a widely used open-source ETL tool known for its flexibility and ability to integrate with various data storage platforms. It allows organizations to efficiently extract, transform, and load data from diverse sources into a unified data warehouse or data lake.

In a logical model, the relationship between two entities where one occurrence of entity A can relate to many occurrences of entity B, and vice versa, is termed as _______.

  • Many-to-Many Relationship
  • Many-to-One Relationship
  • One-to-Many Relationship
  • One-to-One Relationship
In a logical model, a many-to-many relationship represents a situation where one occurrence of entity A can be associated with many occurrences of entity B, and vice versa. This is typically used to model complex relationships between entities.

A strategy that involves making copies of the data warehouse at regular intervals to minimize data loss in case of failures is known as _______.

  • Data Cleansing
  • Data Erosion
  • Data Purging
  • Data Replication
Data replication is a strategy in data warehousing that involves creating copies of the data warehouse at regular intervals. This approach helps minimize data loss in case of failures by ensuring that there are up-to-date backup copies of the data readily available. Data replication is essential for data resilience and disaster recovery.

Your data warehouse system alerts show frequent memory overloads during peak business hours. What could be a maintenance strategy to address this?

  • Add more data storage capacity
  • Implement data partitioning
  • Increase CPU processing power
  • Upgrade network bandwidth
To address memory overloads in a data warehouse, implementing data partitioning is a strategic maintenance strategy. Data partitioning involves dividing large tables into smaller, more manageable segments. This can reduce the memory requirements and improve query performance during peak hours.

_______ is a technique used in data warehouses to determine the order in which data is physically stored in a table, often to improve query performance.

  • Data Cleaning
  • Data Clustering
  • Data Modeling
  • Data Sorting
Data clustering is a technique used in data warehouses to determine the physical order of data within a table. It is done to group similar data together, optimizing query performance by reducing the need to access scattered data.

A _______ provides a consolidated and consistent view of data sourced from various systems across an organization.

  • Data Mart
  • Data Mining
  • Data Source
  • Data Warehouse
A Data Warehouse provides a consolidated and consistent view of data sourced from various systems across an organization. It is designed to support data analysis and reporting by providing a centralized repository for structured data from different sources.

What is the primary goal of Business Intelligence (BI)?

  • Generating Reports
  • Managing Payroll
  • Predicting Future Profits
  • Providing Data Insights
The primary goal of Business Intelligence (BI) is to provide data insights and support decision-making. BI systems gather, process, and analyze data to help organizations gain a deeper understanding of their business and make informed choices based on data-driven insights.