Magnificent Dijkstra Algorithm Test - 54+ MCQs: High Difficulty Dijkstra Algorithm Quiz: Test Your Graph Algorithm Knowledge

1. How does Dijkstra's algorithm handle graphs with disconnected components?

It connects them with dummy edges

It marks them as unreachable

It processes each component independently

It returns an error

2. In the context of Dijkstra's algorithm, what does 'SPT' stand for?

Shortest Path Tree

Simple Path Traversal

Sequential Path Tree

Strongly-Connected Path Tree

3. What scenario would make Dijkstra's algorithm less efficient?

When the graph has a single connected component

When the graph is unweighted

When the graph has a large number of vertices

When the graph has a large number of edges

4. How does the choice of initial vertex impact the results of Dijkstra's algorithm?

No impact on the results

It determines the starting point of the traversal

It affects the final distance values

It leads to different shortest paths

5. What is the main drawback of Dijkstra's algorithm?

It cannot handle graphs with negative edge weights

It has high time complexity for dense graphs

It is prone to infinite loop errors

It is not suitable for directed graphs

6. Which algorithm is an alternative to Dijkstra's algorithm for graphs with negative edge weights?

Floyd-Warshall algorithm

Depth-First Search

Breadth-First Search

Prim's algorithm

7. What is the time complexity of Dijkstra's algorithm with an adjacency matrix representation?

O(V log V)

O(E log V)

O(V^2)

O(E + V)

8. What is the purpose of the priority queue in Dijkstra's algorithm?

To store all vertices in random order

To store vertices based on their discovery time

To store vertices based on their topological order

To efficiently extract the minimum distance vertex

9. How does Dijkstra's algorithm handle graphs with unconnected vertices?

It ignores unconnected vertices

It connects them with dummy edges

It marks them as unreachable

It returns an error

10. What modification is needed in Dijkstra's algorithm to handle graphs with negative edge weights?

None, it inherently supports negative weights

Adjustment in the relaxation step

Introduction of a bias factor

Replacement of the priority queue

Dijkstra Algorithm MCQ Test 5