FDS FINAL TERM QUIZ 2

Triple

In RDF, this is the basic unit of a factual statement made up of a subject, a predicate, and an object.

Geographic Data

This describes features of the real Earth's surface such as roads, rivers, and political boundaries, and is typically stored using a round-earth coordinate system of latitude, longitude, and elevation.

Array Database

This type of database provides specialized support for multi-dimensional arrays, including features like compressed storage, efficient indexing, and custom query extensions.

Term Frequency

In information retrieval, this is the term for the count of how many times a specific query term appears within a given document.

BSON (Binary JSON)

This is the binary-encoded version of JSON used by MongoDB for more efficient storage and faster parsing than plain text JSON

Random Walk Model

This is the mathematical model underlying PageRank, which imagines a user randomly clicking hyperlinks on the web forever to determine page importance.

Hibernate

This is the ORM framework that is the dominant tool used for Java applications, serving as the foundation for the Java Persistence API (JPA) standard.

Root Tag

In XML, this is the single outermost tag that contains all other tags in a document.

Stop Words

In TF-IDF, this term refers to extremely common words like "the," "is," and "and" that are typically removed before computing relevance scores because they carry no meaningful discriminating power.

Path Expression

This is the syntax used to navigate into a nested JSON document and extract a specific value. For example, using v->ID in PostgreSQL to retrieve just the name field

XML

It is the older but still widely used data format for representing structured data using named tags that wrap values and can be nested inside each other.

Tetrahedron

In 3D spatial representation, complex polyhedra (solid shapes) are decomposed into this simplest possible 3D solid, defined by four vertices.

Vector Data

This type of spatial data is constructed from basic geometric objects such as points, line segments, and polygons, and is resolution-independent — meaning zooming in never causes loss of detail.

Knowledge Representation

The sub-field within Artificial Intelligence concerned with storing human knowledge; facts, relationships, and reasoning rules in a structured form that a computer can process.

Wireframe Model

This type of 3D design model represents a three-dimensional surface as a network of connected edges and vertices, without storing solid faces or interior volumes.

Table Types

It is a user-defined type that itself has the structure of a table. It means that a column in a regular table can contain a mini-table as its value.

FALSE

JSON is a binary format specifically designed for efficient machine parsing and storage.

T

To represent n-ary relationships in RDF, the quad approach adds a fourth "context" component to the standard triple structure

FALSE

In TF-IDF, a term that appears frequently across all documents in the collection receives a high IDF score

FALSE

GIS stands for Geographical Information System

FALSE

In retrieval effectiveness, Precision measures the percentage of all relevant documents in the entire collection that were successfully retrieved by the system

T

In SPARQL, unknown values in a triple pattern are marked with a ? symbol, which the query engine fills in by matching against stored triples.

T

Wide column representation allows different records in the same collection to have completely different fields from one another.

T

JSON natively supports strings, numbers, booleans, null, objects, and arrays

T

A knowledge graph is a representation of RDF data where entities become nodes and predicates become directed edges connecting those nodes

T

Spatial databases store information related to spatial locations, and support efficient storage, indexing and querying of spatial data

FALSE

XQuery gained wide adoption and is commonly used in modern database projects as the standard language for querying XML data

FALSE

A polyline (linestring) is always a closed shape, with its last vertex automatically connecting back to its first vertex

FALSE

Geographic data uses a flat Euclidean coordinate system with X, Y, Z values, while geometric data uses latitude, longitude, and elevation

T

Vector data is resolution-independent, meaning zooming in on vector spatial data never causes pixelation or loss of detail.

FALSE

Django ORM is the dominant object-relational mapping framework used in Java application development.