A _______ is a protocol that APIs use to secure communication over a computer network.

  • OAuth
  • SOAP
  • SSL/TLS
  • UDP
SSL/TLS is a protocol that APIs use to secure communication over a computer network. It provides encryption and authentication, ensuring that data exchanged between the client and server remains confidential and secure.

A _______ chart is particularly effective for showing changes over time in reporting.

  • Bar
  • Line
  • Pie
  • Scatter
A Line chart is particularly effective for showing changes over time in reporting. It connects data points with lines, making it easy to visualize trends and patterns. Other chart types like Pie, Bar, and Scatter are more suitable for different purposes.

If you are tasked with designing a navigation system for a mapping application, what type of algorithm would be most efficient for calculating the shortest path between two locations?

  • A* Algorithm
  • Breadth-First Search
  • Depth-First Search
  • Kruskal's Algorithm
The A* Algorithm is commonly used for calculating the shortest path in navigation systems. It combines the advantages of both Dijkstra's Algorithm and Greedy Best-First Search, making it efficient for finding the optimal path with heuristic evaluation. Breadth-First Search, Depth-First Search, and Kruskal's Algorithm are not specifically designed for finding the shortest path in a navigation context.

In a clinical trial, what statistical method would be appropriate for comparing the effectiveness of two different medications?

  • ANOVA
  • Chi-Square Test
  • Regression Analysis
  • T-Test
A t-test is appropriate for comparing the means of two groups, making it suitable for evaluating the effectiveness of two different medications in a clinical trial. ANOVA is used for more than two groups, Chi-Square for categorical data, and Regression for examining relationships between variables.

The _______ is a commonly used statistical method in time series to predict future values based on previously observed values.

  • Correlation
  • Exponential Smoothing
  • Moving Average
  • Regression Analysis
The blank is filled with "Exponential Smoothing." Exponential smoothing is a widely used statistical method in time series analysis to predict future values by assigning different weights to past observations, with more recent values receiving higher weights. This technique is particularly useful for forecasting when there is a trend or seasonality in the data.

In the context of big data, how do BI tools like Tableau and Power BI handle data scalability and performance?

  • Power BI utilizes in-memory processing, while Tableau relies on traditional disk-based storage for handling big data.
  • Tableau and Power BI both lack features for handling big data scalability and performance.
  • Tableau and Power BI use techniques like data partitioning and in-memory processing to handle big data scalability and performance.
  • Tableau relies on cloud-based solutions, while Power BI focuses on on-premises data storage for scalability.
Both Tableau and Power BI employ strategies like in-memory processing and data partitioning to handle big data scalability and enhance performance. This allows users to analyze and visualize large datasets efficiently.

_______ is a distributed database management system designed for large-scale data.

  • Apache Hadoop
  • MongoDB
  • MySQL
  • SQLite
Apache Hadoop is a distributed database management system specifically designed for handling large-scale data across multiple nodes. It is commonly used in big data processing. MongoDB, MySQL, and SQLite are database systems but are not specifically designed for distributed large-scale data.

If you are analyzing real-time social media data, which Big Data technology would you use to process and analyze data streams?

  • Apache Flink
  • Apache Hadoop
  • Apache Kafka
  • Apache Spark
Apache Kafka is a distributed streaming platform that is commonly used to handle real-time data streams. It allows for the processing and analysis of data in real-time, making it a suitable choice for analyzing social media data as it is generated.

Which machine learning technique is typically used for making predictions based on continuous data?

  • Classification
  • Clustering
  • Dimensionality Reduction
  • Regression
Regression is the machine learning technique used for making predictions based on continuous data. It models the relationship between the independent variables and the dependent variable, allowing for the prediction of numeric values.

A _______ framework is often used to ensure consistency and scalability in the development of enterprise-level dashboards.

  • Dashboard
  • Design
  • Framework
  • Visualization
A Framework is often used to ensure consistency and scalability in the development of enterprise-level dashboards. Frameworks provide a structured approach to designing and building dashboards, promoting best practices and efficiency in development.