A DAG has no cycles, but directed edges. Graphs can be dense (have more edges) or sparse (have a fewer edges). Most graphs are dense. The adjacency matrix is an array of arrays (a 2D array). An adjacency list is a linked list of linked lists.

A DAG has no cycles, but directed edges. Graphs can be dense (have more edges) or sparse (have a fewer edges). Most graphs are dense. The adjacency matrix is an array of arrays (a 2D array). An adjacency list is a linked list of linked lists.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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True or false help

A DAG has no cycles, but directed edges.
Graphs can be dense (have more edges) or sparse (have a fewer edges). Most graphs are dense.
The adjacency matrix is an array of arrays (a 2D array).
An adjacency list is a linked list of linked lists.

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