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The EGMP2201 Certification Exam is designed for professionals who work with geospatial data and its management in an enterprise environment. EGMP2201 exam tests the candidate's knowledge and skills in areas such as data modeling, database design, data management, and data integration. Successful candidates who pass the exam are awarded the EGMP2201 Certification, which validates their expertise in geospatial data management and their ability to work with Esri's ArcGIS technology to manage and analyze data in an enterprise environment.
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NEW QUESTION # 29
An organization has a web service that must always be available. This service reads data from a feature class in an enterprise geodatabase. The GIS administrator needs to update the schema of the feature class.
Which workflow should be used?
Answer: B
Explanation:
Scenario Overview:
* The organization has a web service thatmust always be available.
* The service reads data from afeature classin an enterprise geodatabase.
* The GIS administrator needs to update theschemaof the feature class.
Why Disable Schema Locking?
* By default, ArcGIS services enforceschema lockingto ensure data consistency while the service is active. This prevents any modifications to the feature class schema (e.g., adding fields, altering attributes) while the service is running.
* Disabling schema locking allows schema updates to occur without disrupting the service's availability.
(ArcGIS Documentation: Schema Locking)
Steps to Disable Schema Locking:
* Access the ArcGIS Server Manager.
* Locate the web service and open itsservice properties.
* In the advanced settings, disable theschema lockingoption.
* Perform the required schema updates (e.g., adding fields or modifying the feature class).
* Re-enable schema locking if necessary for normal operation.
Alternative Options:
* Option B: Run the Alter Field geoprocessing tool
* This tool modifies fields but cannot execute schema changes while schema locks are active.
* Option C: Delete the spatial index
* Deleting the spatial index is unrelated to schema changes and could degrade query performance.
Thus, the correct workflow is todisable schema locking on the serviceto allow schema changes without disrupting the web service.
NEW QUESTION # 30
AGIS database administrator needs to create an index to improve query performance on a large enterprise geodatabase facility_inspections feature class.
The query to be optimized is as follows:
SELECT facility_type,inspection_date
FROM facility_inspections WHERE inspector_name = 'JQSmith' ORDER BY inspection_date
Answer: A
Explanation:
Understanding the Scenario:
* The query filters rows based on inspector_name and sorts the results by inspection_date.
* Creating an index optimizes data retrieval by reducing the number of rows scanned during the query execution.
Key Considerations for Indexing:
* Primary Filter Column:The inspector_name column is the primary filter in the WHERE clause.
Indexing this column ensures quick identification of rows matching the filter condition.
* Sort Optimization:The ORDER BY inspection_date clause benefits from indexing inspection_date as the second column in a composite index, which accelerates sorting for the filtered results.
Index Selection:
* A composite index on inspector_name and inspection_date enables efficient query execution:
* inspector_name ensures fast filtering.
* inspection_date optimizes sorting.
* Indexing unrelated columns like facility_type is unnecessary, as it is not part of the query.
Steps to Create the Index:
* In the enterprise geodatabase, use the database management tools or SQL commands to create a composite index:
CREATE INDEX idx_facility_inspections
ON facility_inspections (inspector_name, inspection_date);
References:
* Esri Documentation: Creating and Managing Indexes.
* SQL Indexing Best Practices: Guidelines for composite index creation to optimize queries.
Why the Correct Answer is D:A composite index on inspector_name and inspection_date directly addresses the query structure, optimizing both the WHERE filter and the ORDER BY clause.
NEW QUESTION # 31
A wells feature class has one row per well. A well_inspections table has one row for each time a well was inspected. All inspection dates need to be displayed as labels clustered around each well on the map.
Which kind of association should be used to meet this requirement?
Answer: B
Explanation:
Scenario Overview:
The wells feature class has one row per well.
The well_inspections table has one row for each inspection of a well.
Inspection dates from the well_inspections table need to be displayed as labels clustered around each well on the map.
The goal is to establish a connection between these two datasets without permanently joining them, as the data is being displayed dynamically (inspection dates are clustered around the wells).
Relates in Geodatabases:
A relate is a type of table association in which tables are linked by a common key field but remain separate.
Relates allow for dynamic queries to retrieve related records without duplicating or permanently associating the data.
Using a relate, you can query all inspection dates for a specific well dynamically, display them on the map as labels, and preserve the integrity of both the wells and inspections datasets.
(ArcGIS Documentation: Relates)
Alternative Options:
Option A: Join
A join merges two tables into one virtual table, based on a shared key. However, this approach is static and inappropriate for displaying dynamically clustered labels since the tables would need to be rejoined after every update.
Option C: Relationship Class
A relationship class is a more permanent association that enforces rules between two datasets. It is ideal for maintaining relationships between data but is unnecessary for dynamically labeling inspection dates on the map.
Thus, a relate is the most efficient and appropriate option for this scenario.
NEW QUESTION # 32
A GIS administrator needs to facilitate the collaboration of two teams of GIS analysts in two different offices.
Each office needs a copy of the data in its own enterprise geodatabase. and analysts in both offices will edit the same feature classes. Changes will be synchronized nightly.
The GIS administrator needs to set up the information infrastructure so that both teams can work together.
What should the administrator use to meet the requirements?
Answer: B
Explanation:
To facilitate collaboration between two teams of GIS analysts located in different offices, each requiring a copy of the data in their own enterprise geodatabase with the ability to edit the same feature classes and synchronize changes nightly, geodatabase replication is the appropriate solution.
Understanding Geodatabase Replication:
Geodatabase replication is a data distribution method in ArcGIS that allows you to create copies of data across two or more geodatabases. This enables multiple users to work with the same datasets in different locations, with the ability to synchronize changes to ensure consistency.
ARCGIS PRO
Types of Geodatabase Replication:
There are three types of geodatabase replication:
One-Way Replication: Changes are sent in a single direction-from the parent to the child replica.
Two-Way Replication: Changes are synchronized in both directions between the parent and child replicas.
This is suitable when multiple editors need to update the same datasets in different locations.
Checkout/Check-in Replication: Data is checked out to a child replica for editing and then checked back in to the parent replica.
In this scenario, two-way replication is ideal, as it allows both teams to edit the same feature classes and synchronize changes nightly, ensuring that both geodatabases remain consistent.
ARCGIS PRO
Alternative Options:
Database Replication: This refers to replicating entire databases at the DBMS level. While it can synchronize data, it doesn't account for the geodatabase-specific behaviors, rules, and relationships managed by ArcGIS.
Therefore, it may not be suitable for scenarios requiring synchronization of geodatabase-specific functionalities.
Distributed Collaboration: This is a framework in ArcGIS Enterprise that allows sharing of content, such as maps, layers, and apps, across multiple ArcGIS Enterprise deployments or between ArcGIS Enterpriseand ArcGIS Online. However, it doesn't provide the fine-grained control over data editing and synchronization required in this scenario.
GEODATABASE RESOURCES
Therefore, to meet the requirements of both teams being able to edit the same feature classes in their respective enterprise geodatabases and synchronize changes nightly, geodatabase replication is the most appropriate solution.
NEW QUESTION # 33
The GIS administrator does not have the database administrator credentials and needs to create an enterprise geodatabase for storage of vector data. The database administrator will provide a database with the appropriate users and permissions for use.
Which tool should the GIS administrator use?
Answer: A
Explanation:
Understanding the Scenario:The GIS administrator lacks database administrator credentials but requires an enterprise geodatabase for vector data storage. In this setup, the database administrator (DBA) is responsible for preparing the database, including setting up users and permissions, while the GIS administrator is tasked with enabling it as an enterprise geodatabase.
Tool Selection Overview:
* Create Feature Dataset:This tool is for creating a logical grouping of related feature classes inside an existing geodatabase. It is unrelated to enabling or creating an enterprise geodatabase.
* Enable Enterprise Geodatabase:This tool is used when a database has already been created and configured by the DBA, and the GIS administrator needs to enable it as an enterprise geodatabase. It adds geodatabase system tables and functionality to the database. This aligns with the scenario described.
* Create Enterprise Geodatabase:This tool creates a new database and configures it as an enterprise geodatabase in one step.However, this tool requires database administrator credentials, which the GIS administrator in this scenario does not have.
Key Steps to Enable an Enterprise Geodatabase:
* Preparation by DBA:The DBA sets up the database, ensuring the appropriate users and permissions are in place. They also provide connection details to the GIS administrator.
* Using the Enable Enterprise Geodatabase Tool:
* Navigate toArcGIS ProorArcGIS Enterprise tools.
* Open theEnable Enterprise Geodatabasetool.
* Specify the database connection file for the target database.
* Provide the authorization file (a valid ArcGIS Server Enterprise license file) to enable geodatabase functionality.
* Execute the tool to add system tables, stored procedures, and geodatabase functionality to the database.
References:
* ArcGIS Pro Documentationon Enable Enterprise Geodatabase.
* Esri Enterprise Geodatabase Concepts: Official Esri documentation provides comprehensive details on the role of DBAs and GIS administrators in setting up enterprise geodatabases.
* ArcGIS Enterprise Licensing Guide: Detailed information about authorization files for enabling geodatabases.
Why the Correct Answer is B:The tool "Enable Enterprise Geodatabase" is specifically designed for situations where the database setup is handled by a DBA, and the GIS administrator is responsible only for enabling geodatabase capabilities. Since the GIS administrator does not have DBA credentials, they cannot use the "Create Enterprise Geodatabase" tool, which would require those credentials to create and configure a new database.
NEW QUESTION # 34
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