GIS Web GIS and Services 4

Question 1

What is the main advantage of using vector tiles over raster tiles in a web mapping application?

Accepted Answer

Client-side rendering allows dynamic styling and infinite zoom without pixelation

Answer

Vector tiles contain raw geometry and attribute data rendered on the client (browser), enabling dynamic style changes and smooth zooming without server re-rendering.

Question 2

Which OGC standard specifies how to access geospatial features through a RESTful API aligned with HTTP best practices?

Accepted Answer

OGC API – Features (WFS 3.0)

Answer

OGC API – Features (informally WFS 3.0) is the modern RESTful successor to WFS, using OpenAPI specifications and JSON by default.

Question 3

What is geoprocessing proxying in a web GIS deployment used for?

Accepted Answer

Relaying client requests to a GIS server while hiding credentials and bypassing CORS

Answer

A proxy server sits between the browser client and the GIS backend, hiding API keys, enforcing CORS headers, and potentially adding rate limiting.

Question 4

In GeoServer, what is the purpose of a 'workspace'?

Accepted Answer

A logical grouping of data stores, layers, and styles for organizational management

Answer

GeoServer workspaces act as namespaces to organize related data stores, feature types, and styles, helping administrators manage large numbers of layers.

Question 5

What does the term 'geocoding' refer to in a web GIS context?

Accepted Answer

Translating a human-readable address into geographic coordinates

Answer

Geocoding is the process of converting an address or place name (e.g., '123 Main St') into latitude/longitude coordinates for map display or spatial analysis.

GIS - Geographic Information System Practice Test

GIS - Geographic Information System Practice Test

GIS Web GIS and Services 4