Step 1: Understand what DFS (Depth-First Search) is. It is a method for exploring a graph by going as deep as possible down one path before backtracking.
Step 2: Recognize that DFS explores one path completely before moving to another path.
Step 3: Identify that in some graphs, there may be long paths that lead to dead ends or nodes with no further connections.
Step 4: Realize that if DFS keeps going down these long paths, it can take a lot of time and resources without finding a solution.
Step 5: Conclude that this inefficiency in traversal, where DFS gets stuck in deep paths, is a disadvantage.