# GIS Analysis

#### Home Analysis GIS Analysis

“GIS Data Analysis Interview Questions and Answers will guide us now that Geographic Information System (GIS), or Geographical Information System, is any system that captures, stores, analyzes, manages, and presents data that are linked to location. Technically, a GIS is a system that includes mapping software and its application to remote sensing, land surveying, aerial photography, mathematics, photogrammetry, geography, and tools that can be implemented with GIS software. Learn GIS Now.”

## 32 GIS Analysis Questions And Answers

### 1⟩ Which of the following overlay methods would you use to calculate the length of road within a forest polygon?

► 1. Erase

► 2. Union

► 3. Line-in-polygon

► 4. Point-in-polygon

Line-in-polygon

231 views

### 2⟩ What is point-in-polygon overlay?

► 1. A method interpolating point data

► 2. An overlay method used to determine which points lay within the boundary of a polygon

► 3. An overlay method used to determine the distance between a point and it is nearest neighboring polygon

► 4. An overlay method used to reclassify polygon data

An overlay method used to determine which points lay within the boundary of a polygon

236 views

### 3⟩ Which of the following could you use a buffer operation?

► 1. Calculating the distance from one point to another

► 2. Calculating the area of overlap between two polygon data layers

► 3. Determining the area within a set distance from a point, line or area feature

► 4. Calculating the number of observations within a set distance of a point, line or area feature

Determining the area within a set distance from a point, line or area feature

Calculating the number of observations within a set distance of a point, line or area feature

199 views

### 4⟩ Which of the following are considered the main problems facing overlay operations in GIS?

► 1. Selecting threshold criteria

► 2. Topological inconsistencies

► 3. The Modifiable Arial Unit Problem (MAUP)

► 5. Visual complexity

Selecting threshold criteria

The Modifiable Arial Unit Problem (MAUP)

Visual complexity

207 views

► 1. True

► 2. False

True

198 views

► 1. True

► 2. False

False

202 views

### 7⟩ Assuming a pair of binary raster data layers, which of the following could be used as the equivalent of a Boolean AND overlay in cartographic modelling?

► 1. Layer 1 – layer 2

► 2. Layer 1 + layer 2

► 3. Layer 1 / layer 2

► 4. Layer 1 * layer 2

Layer 1 – layer 2

Layer 1 + layer 2

Layer 1 * layer 2

178 views

► 1. True

► 2. False

False

217 views

► 1. True

► 2. False

False

185 views

► 1. True

► 2. False

False

180 views

► 1. True

► 2. False

True

199 views

► 1. True

► 2. False

False

211 views

### 13⟩ What is spatial interpolation?

► 1. The process of establishing values for areas outside the boundary of an existing set of data points.

► 2. The process of modelling spatial pattern from a set of one or more data layers

► 3. The process of establishing values for areas between an existing set of discrete observations

► 4. The process of establishing a statistical relationship between two spatially correlated variables

The process of establishing values for areas between an existing set of discrete observations.

196 views

► 1. True

► 2. False

True

187 views

### 15⟩ Do you know what is the basic work of a GIS technician?

A GIS technician works closely with end users to identify GIS data requirements and handle technical issues. It is also the job of a GIS technician to manage data maintenance and manipulation and handle extraction activities along with ensuring preparation, planning and updating a variety of maps and drawings to be part of a GIS database.

183 views

► 1. True

► 2. False

False

212 views

### 17⟩ Do you know the name of two data structures that have the capacity to hold spatial data?

The two data structures that can hold spatial data include raster and vector.

195 views

### 18⟩ What is geo-coding?

Geo-coding is when you associate a place name or an address with map coordinates.

200 views

### 19⟩ What is geo-referencing?

Geo-referencing is the process of associating plain digital images taken from a satellite or a plane with map coordinates so that they can be overlaid on street maps.

212 views

### 20⟩ Do you know the top 5 skills in GIS?

Skills in spatial data handling, algorithms, data conversion, model building and database programming.

200 views