What are the different standards and specifications related to GDI?

Description: This quiz is designed to assess your knowledge about the different standards and specifications related to Geographical Data Infrastructure (GDI).
Number of Questions: 16
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Which of the following is not a standard or specification related to GDI?

  1. ISO 19115

  2. OGC WMS

  3. OGC WFS

  4. HTTP


Correct Option: D
Explanation:

HTTP is a protocol used for transferring data over the internet, while ISO 19115, OGC WMS, and OGC WFS are all standards or specifications related to GDI.

What is the purpose of the ISO 19115 standard?

  1. To define a common framework for GDI

  2. To specify the technical requirements for GDI

  3. To provide guidance on the implementation of GDI

  4. All of the above


Correct Option: D
Explanation:

The ISO 19115 standard defines a common framework for GDI, specifies the technical requirements for GDI, and provides guidance on the implementation of GDI.

What is the Open Geospatial Consortium (OGC)?

  1. An international organization that develops standards for geospatial data and services

  2. A non-profit organization that promotes the use of geospatial data and services

  3. A government agency that regulates the use of geospatial data and services

  4. None of the above


Correct Option: A
Explanation:

The OGC is an international organization that develops standards for geospatial data and services. These standards are used by governments, businesses, and individuals to create and share geospatial data and services.

What is the purpose of the OGC WMS standard?

  1. To define a common framework for web mapping services

  2. To specify the technical requirements for web mapping services

  3. To provide guidance on the implementation of web mapping services

  4. All of the above


Correct Option: D
Explanation:

The OGC WMS standard defines a common framework for web mapping services, specifies the technical requirements for web mapping services, and provides guidance on the implementation of web mapping services.

What is the purpose of the OGC WFS standard?

  1. To define a common framework for web feature services

  2. To specify the technical requirements for web feature services

  3. To provide guidance on the implementation of web feature services

  4. All of the above


Correct Option: D
Explanation:

The OGC WFS standard defines a common framework for web feature services, specifies the technical requirements for web feature services, and provides guidance on the implementation of web feature services.

What is the difference between a web mapping service (WMS) and a web feature service (WFS)?

  1. WMS provides access to geospatial data, while WFS provides access to geospatial features

  2. WMS provides access to static maps, while WFS provides access to dynamic maps

  3. WMS is a vector-based service, while WFS is a raster-based service

  4. WMS is a client-server service, while WFS is a peer-to-peer service


Correct Option: A
Explanation:

WMS provides access to geospatial data, such as maps, images, and elevation data, while WFS provides access to geospatial features, such as points, lines, and polygons.

What is the purpose of the ISO 19139 standard?

  1. To define a common framework for metadata

  2. To specify the technical requirements for metadata

  3. To provide guidance on the implementation of metadata

  4. All of the above


Correct Option: D
Explanation:

The ISO 19139 standard defines a common framework for metadata, specifies the technical requirements for metadata, and provides guidance on the implementation of metadata.

What is the purpose of metadata?

  1. To describe the content, quality, and usage of geospatial data

  2. To make geospatial data more discoverable and accessible

  3. To improve the interoperability of geospatial data

  4. All of the above


Correct Option: D
Explanation:

Metadata is used to describe the content, quality, and usage of geospatial data. It makes geospatial data more discoverable and accessible, and it improves the interoperability of geospatial data.

What is the difference between a data model and a schema?

  1. A data model is a conceptual representation of data, while a schema is a physical representation of data

  2. A data model is a logical representation of data, while a schema is a physical representation of data

  3. A data model is a high-level representation of data, while a schema is a low-level representation of data

  4. A data model is a static representation of data, while a schema is a dynamic representation of data


Correct Option: A
Explanation:

A data model is a conceptual representation of data that describes the structure and relationships of data. A schema is a physical representation of data that describes the actual storage and organization of data.

What is the purpose of the ISO 19107 standard?

  1. To define a common framework for spatial referencing systems

  2. To specify the technical requirements for spatial referencing systems

  3. To provide guidance on the implementation of spatial referencing systems

  4. All of the above


Correct Option: D
Explanation:

The ISO 19107 standard defines a common framework for spatial referencing systems, specifies the technical requirements for spatial referencing systems, and provides guidance on the implementation of spatial referencing systems.

What is a spatial referencing system (SRS)?

  1. A system that defines the location of features on the earth's surface

  2. A system that defines the coordinate system used to represent features on the earth's surface

  3. A system that defines the datum used to represent features on the earth's surface

  4. All of the above


Correct Option: D
Explanation:

A spatial referencing system (SRS) is a system that defines the location of features on the earth's surface, the coordinate system used to represent features on the earth's surface, and the datum used to represent features on the earth's surface.

What is the difference between a geodetic datum and a projected coordinate system?

  1. A geodetic datum is a reference surface for measuring the location of features on the earth's surface, while a projected coordinate system is a system for representing the location of features on a flat surface

  2. A geodetic datum is a horizontal reference surface, while a projected coordinate system is a vertical reference surface

  3. A geodetic datum is a global reference surface, while a projected coordinate system is a local reference surface

  4. A geodetic datum is a static reference surface, while a projected coordinate system is a dynamic reference surface


Correct Option: A
Explanation:

A geodetic datum is a reference surface for measuring the location of features on the earth's surface. A projected coordinate system is a system for representing the location of features on a flat surface, such as a map or a computer screen.

What is the purpose of the ISO 19111 standard?

  1. To define a common framework for spatial data quality

  2. To specify the technical requirements for spatial data quality

  3. To provide guidance on the implementation of spatial data quality

  4. All of the above


Correct Option: D
Explanation:

The ISO 19111 standard defines a common framework for spatial data quality, specifies the technical requirements for spatial data quality, and provides guidance on the implementation of spatial data quality.

What is spatial data quality?

  1. The degree to which spatial data meets the needs of its users

  2. The degree to which spatial data is accurate, complete, consistent, and timely

  3. The degree to which spatial data is relevant, reliable, and accessible

  4. All of the above


Correct Option: D
Explanation:

Spatial data quality is the degree to which spatial data meets the needs of its users. It is also the degree to which spatial data is accurate, complete, consistent, and timely. Additionally, spatial data quality is the degree to which spatial data is relevant, reliable, and accessible.

What is the purpose of the ISO 19113 standard?

  1. To define a common framework for spatial data transfer

  2. To specify the technical requirements for spatial data transfer

  3. To provide guidance on the implementation of spatial data transfer

  4. All of the above


Correct Option: D
Explanation:

The ISO 19113 standard defines a common framework for spatial data transfer, specifies the technical requirements for spatial data transfer, and provides guidance on the implementation of spatial data transfer.

What is spatial data transfer?

  1. The process of moving spatial data from one location to another

  2. The process of converting spatial data from one format to another

  3. The process of transforming spatial data from one coordinate system to another

  4. All of the above


Correct Option: D
Explanation:

Spatial data transfer is the process of moving spatial data from one location to another, converting spatial data from one format to another, and transforming spatial data from one coordinate system to another.

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