GISP - Geographic Information Systems Professional GIS Application Development Questions and Answers

Question 1

A development team is building a public-facing web map that must display pre-rendered basemap imagery and allow users to query real-time vector data for traffic incidents from a municipal GIS server. To ensure maximum performance and standards compliance, which combination of OGC web service types is most appropriate for the basemap and traffic data, respectively?

Accepted Answer

WMTS for basemaps and WFS for traffic data

Answer

The Web Map Tile Service (WMTS) is the OGC standard specifically designed for serving cached, pre-rendered map tiles, making it the most performant choice for basemaps. The Web Feature Service (WFS) is the OGC standard that allows a client to request and receive actual vector feature data (not just a picture of it), which is necessary for querying attributes and geometry, making it ideal for the live traffic data layer.

Question 2

A GIS developer needs to create a custom geoprocessing tool within an ArcGIS Pro project. The tool must automate a complex workflow that involves selecting features by location, calculating field values, and updating layers in the map's table of contents. Which Python library is specifically designed by Esri for this type of in-application scripting and automation?

Accepted Answer

ArcPy

Answer

ArcPy is Esri's official Python site-package for geoprocessing, data management, and map automation within the ArcGIS ecosystem. It provides direct access to all geoprocessing tools and allows for manipulation of project files (.aprx), layers, and tables, making it the correct choice for developing custom tools inside ArcGIS Pro.

Question 3

Which of the following best describes a primary advantage of using an Agile development methodology over a traditional Waterfall model for a complex GIS application project where user requirements are expected to evolve?

Accepted Answer

It allows for iterative development and frequent stakeholder feedback, making it easier to adapt to changing needs.

Answer

The core strength of the Agile methodology is its iterative nature. Development is broken into short cycles (sprints), each producing a potentially shippable increment of the application. This allows stakeholders to provide frequent feedback, and the development team can adapt to changing requirements throughout the project lifecycle, which is a common scenario in GIS projects. The Waterfall model is much more rigid and sequential.

Question 4

A developer is designing a mobile GIS application for field crews who will be collecting asset data in outdoor environments, often in bright sunlight and sometimes while wearing gloves. Which UI/UX design consideration is most critical to prioritize for this application's usability?

Accepted Answer

Incorporating large, high-contrast buttons and simple, clear icons.

Answer

For mobile applications used in challenging field conditions, usability is paramount. Large touch targets (buttons) are easier to press accurately, especially with gloved hands. High contrast between interface elements and the background is essential for visibility in bright sunlight. Simple, unambiguous icons reduce the cognitive load on the user, allowing them to complete tasks more efficiently and with fewer errors.

Question 5

In modern web GIS architecture, what is the primary function of a RESTful API, such as the ArcGIS REST API?

Accepted Answer

To provide a standardized, stateless method for client applications to request and manipulate resources on a GIS server.

Answer

A REST (Representational State Transfer) API defines a set of rules and constraints for how applications communicate over a network. Its primary role in web GIS is to provide a standardized way for clients (like a web browser) to make requests to a server to access and manipulate GIS resources (like maps, layers, or query results). It is stateless, meaning each request is independent and contains all the information the server needs to process it.

GISP - Geographic Information Systems Professional Practice Test

GISP - Geographic Information Systems Professional Practice Test

GISP - Geographic Information Systems Professional GIS Application Development Questions and Answers