Dijkstra's Link State Algorithm - Advanced
Consider the incomplete 6-node network shown below, with the given link costs.
Consider the completed table below, which calculates the shortest distance to all nodes from X:
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| Node | Shortest distance from X | Previous Node |
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X 0 n/a
U 1 X
W 3 X
Y 3 X
V 5 U
Z 6 Y
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Question List
1. For link X, what is the cost associated with this link? If the answer can't be determined given the information, respond with 'n/a'
2. For link Y, what is the cost associated with this link? If the answer can't be determined given the information, respond with 'n/a'
Solution
1. Because the link is never used, we cannot determine the value of X, so the answer is n/a.
2. The prior node in the path to V is U, and we know the shortest distance of both V (5) and U (1), so 5 - 1 = 4 which is Y.
That's incorrect
That's correct
The answer was: n/a
The answer was: 4