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Questions and Answers
What is the major purpose of using a NoSQL database?
What is the major purpose of using a NoSQL database?
Which company uses NoSQL for collecting terabytes of user data every day?
Which company uses NoSQL for collecting terabytes of user data every day?
What type of query mechanism is commonly used for data retrieval in NoSQL databases?
What type of query mechanism is commonly used for data retrieval in NoSQL databases?
What does the CAP theorem state?
What does the CAP theorem state?
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What is a key advantage of NoSQL databases?
What is a key advantage of NoSQL databases?
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What is one of the advantages of using NoSQL databases?
What is one of the advantages of using NoSQL databases?
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What is a disadvantage of NoSQL databases?
What is a disadvantage of NoSQL databases?
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What is the main focus of Big Data?
What is the main focus of Big Data?
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What is a characteristic of cloud databases?
What is a characteristic of cloud databases?
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Why is NoSQL considered an alternative to relational databases?
Why is NoSQL considered an alternative to relational databases?
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What is the main characteristic of a NoSQL database?
What is the main characteristic of a NoSQL database?
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Which type of NoSQL database focuses on storing data in key-value pairs?
Which type of NoSQL database focuses on storing data in key-value pairs?
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What is the primary purpose of using a Document store Database in NoSQL?
What is the primary purpose of using a Document store Database in NoSQL?
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According to the CAP theorem, which guarantee cannot be offered by a distributed data store?
According to the CAP theorem, which guarantee cannot be offered by a distributed data store?
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What is a key advantage of using NoSQL databases as a Primary or Analytic Data Source?
What is a key advantage of using NoSQL databases as a Primary or Analytic Data Source?
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Which company is mentioned as an example of using NoSQL for collecting terabytes of user data every single day?
Which company is mentioned as an example of using NoSQL for collecting terabytes of user data every single day?
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What does NoSQL databases excel at?
What does NoSQL databases excel at?
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What is a disadvantage of NoSQL databases?
What is a disadvantage of NoSQL databases?
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What is a key characteristic of cloud databases?
What is a key characteristic of cloud databases?
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Why are NoSQL databases considered an alternative to relational databases?
Why are NoSQL databases considered an alternative to relational databases?
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What is the major focus of Big Data?
What is the major focus of Big Data?
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Study Notes
Purpose of NoSQL Databases
- Designed to handle large volumes of unstructured or semi-structured data.
- Provides flexibility with schema design, allowing rapid iteration and scalability.
Companies Using NoSQL
- Companies such as Facebook collect terabytes of user data daily using NoSQL databases.
Query Mechanism
- NoSQL databases commonly use mechanisms like key-value pairs, document-based formats, or graph-based queries for data retrieval.
CAP Theorem
- CAP theorem states that in a distributed data store, it is impossible to simultaneously guarantee Consistency, Availability, and Partition Tolerance.
Advantages of NoSQL
- Allows for horizontal scaling which accommodates growing data needs without significant restructuring.
- Offers high availability and performance at scale, making it suitable for real-time applications.
Disadvantages of NoSQL
- Limited support for complex queries and transactions compared to traditional relational databases.
- Each NoSQL database may have its own unique querying language, leading to variability in skills required.
Focus of Big Data
- Concentrates on processing and analyzing large volumes of data for insights and trends, applying techniques like distributed computing.
Characteristics of Cloud Databases
- Generally offer scalability, flexibility, and accessibility, enabling data storage and management over the internet.
NoSQL as an Alternative
- Considered an alternative to relational databases due to its capacity to handle diverse data types and structures not suited for traditional table formats.
Main Characteristics of NoSQL Databases
- No rigid schema is required; data structures can evolve over time.
- Designed to optimize for performance, availability, and scaling.
Key-Value Stores
- Key-value databases primarily focus on storing data in pairs of unique keys and corresponding values.
Document Store Databases
- Primarily used to store, manage, and organize documents in formats like JSON or XML, accommodating nested data structures.
Guarantees in CAP Theorem
- According to the CAP theorem, it is not possible to guarantee Consistency in all distributed systems, especially during network partitions.
NoSQL for Data Sources
- NoSQL databases excel as primary or analytic data sources because they can manage vast amounts of varied data types and formats efficiently.
Companies Utilizing NoSQL
- Facebook is cited as an example of a company that relies on NoSQL for processing and storing massive amounts of user data.
Performance in NoSQL
- NoSQL databases excel in high throughput and low latency for data-intensive operations, facilitating real-time analytics.
Key Characteristics of Cloud Databases
- Emphasizes scalability and remote accessibility, offering on-demand resources based on usage.
Limitations of NoSQL Databases
- May lack the comprehensive transaction support and data integrity features characteristic of relational databases.
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Description
Test your knowledge of NoSQL databases with this quiz covering the basic concepts, architecture, and use cases of NoSQL databases. Explore the characteristics of NoSQL, its purpose, and its application in big data and real-time web apps.
