Consider the following shortest path problem. Which node(s) is(are) the supply node(s)?

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
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Consider the following shortest path problem. Which node(s) is(are) the supply node(s)? 

 

From

To

 

Node

Node

Distance

1

2

250

1

3

400

1

4

600

2

3

50

2

4

300

3

4

200

  a.

Node 1

  b.

Nodes 2 and 3

  c.

Node 2

  d.

Nodes 1, 2, and 3

  e.

Nodes 1 and 2

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