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Geographical Databases in Indian Geography: Data Quality and Accuracy

Description: Geographical Databases in Indian Geography: Data Quality and Accuracy
Number of Questions: 15
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Tags: indian geography geographical databases data quality accuracy
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Which of the following is NOT a common source of data for geographical databases in Indian geography?

  1. Census data

  2. Remote sensing data

  3. GPS data

  4. Topographic maps

Show answer
Correct Option: C
Explanation:

GPS data is not a common source of data for geographical databases in Indian geography because it is often not accurate enough for this purpose.

What is the most important factor to consider when assessing the quality of a geographical database?

  1. Accuracy

  2. Completeness

  3. Consistency

  4. Timeliness

Show answer
Correct Option: A
Explanation:

Accuracy is the most important factor to consider when assessing the quality of a geographical database because it determines how well the data represents the real world.

Which of the following is NOT a common method for assessing the accuracy of a geographical database?

  1. Ground truthing

  2. Photogrammetry

  3. Remote sensing

  4. GPS surveying

Show answer
Correct Option: B
Explanation:

Photogrammetry is not a common method for assessing the accuracy of a geographical database because it is often not accurate enough for this purpose.

What is the difference between accuracy and precision in the context of geographical databases?

  1. Accuracy refers to the closeness of the data to the true value, while precision refers to the closeness of the data to other data points.

  2. Accuracy refers to the closeness of the data to the true value, while precision refers to the repeatability of the data.

  3. Accuracy refers to the closeness of the data to other data points, while precision refers to the repeatability of the data.

  4. Accuracy refers to the repeatability of the data, while precision refers to the closeness of the data to the true value.

Show answer
Correct Option: B
Explanation:

Accuracy refers to the closeness of the data to the true value, while precision refers to the repeatability of the data.

Which of the following is NOT a common method for improving the accuracy of a geographical database?

  1. Ground truthing

  2. Data cleaning

  3. Data integration

  4. Data standardization

Show answer
Correct Option: C
Explanation:

Data integration is not a common method for improving the accuracy of a geographical database because it can introduce errors into the data.

What is the most important factor to consider when assessing the completeness of a geographical database?

  1. The number of features in the database

  2. The spatial extent of the database

  3. The temporal extent of the database

  4. The thematic content of the database

Show answer
Correct Option: A
Explanation:

The number of features in the database is the most important factor to consider when assessing the completeness of a geographical database because it determines how well the database represents the real world.

Which of the following is NOT a common method for assessing the completeness of a geographical database?

  1. Visual inspection

  2. Statistical analysis

  3. Data mining

  4. Expert opinion

Show answer
Correct Option: C
Explanation:

Data mining is not a common method for assessing the completeness of a geographical database because it is often not able to identify all of the missing data.

What is the difference between completeness and consistency in the context of geographical databases?

  1. Completeness refers to the presence of all of the necessary data, while consistency refers to the agreement between different parts of the data.

  2. Completeness refers to the agreement between different parts of the data, while consistency refers to the presence of all of the necessary data.

  3. Completeness refers to the presence of all of the necessary data, while consistency refers to the accuracy of the data.

  4. Completeness refers to the accuracy of the data, while consistency refers to the presence of all of the necessary data.

Show answer
Correct Option: A
Explanation:

Completeness refers to the presence of all of the necessary data, while consistency refers to the agreement between different parts of the data.

Which of the following is NOT a common method for improving the completeness of a geographical database?

  1. Data collection

  2. Data cleaning

  3. Data integration

  4. Data standardization

Show answer
Correct Option: D
Explanation:

Data standardization is not a common method for improving the completeness of a geographical database because it does not add any new data to the database.

What is the most important factor to consider when assessing the consistency of a geographical database?

  1. The agreement between different parts of the data

  2. The accuracy of the data

  3. The completeness of the data

  4. The timeliness of the data

Show answer
Correct Option: A
Explanation:

The agreement between different parts of the data is the most important factor to consider when assessing the consistency of a geographical database because it determines how well the data can be used for analysis.

Which of the following is NOT a common method for assessing the consistency of a geographical database?

  1. Visual inspection

  2. Statistical analysis

  3. Data mining

  4. Expert opinion

Show answer
Correct Option: C
Explanation:

Data mining is not a common method for assessing the consistency of a geographical database because it is often not able to identify all of the inconsistencies in the data.

What is the difference between consistency and timeliness in the context of geographical databases?

  1. Consistency refers to the agreement between different parts of the data, while timeliness refers to the recency of the data.

  2. Consistency refers to the recency of the data, while timeliness refers to the agreement between different parts of the data.

  3. Consistency refers to the accuracy of the data, while timeliness refers to the agreement between different parts of the data.

  4. Consistency refers to the agreement between different parts of the data, while timeliness refers to the accuracy of the data.

Show answer
Correct Option: A
Explanation:

Consistency refers to the agreement between different parts of the data, while timeliness refers to the recency of the data.

Which of the following is NOT a common method for improving the consistency of a geographical database?

  1. Data cleaning

  2. Data integration

  3. Data standardization

  4. Data validation

Show answer
Correct Option: B
Explanation:

Data integration is not a common method for improving the consistency of a geographical database because it can introduce inconsistencies into the data.

What is the most important factor to consider when assessing the timeliness of a geographical database?

  1. The recency of the data

  2. The accuracy of the data

  3. The completeness of the data

  4. The consistency of the data

Show answer
Correct Option: A
Explanation:

The recency of the data is the most important factor to consider when assessing the timeliness of a geographical database because it determines how well the data represents the current state of the world.

Which of the following is NOT a common method for assessing the timeliness of a geographical database?

  1. Visual inspection

  2. Statistical analysis

  3. Data mining

  4. Expert opinion

Show answer
Correct Option: C
Explanation:

Data mining is not a common method for assessing the timeliness of a geographical database because it is often not able to identify all of the outdated data.

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