READ_ONLY_ACCESS
[
  {
    "id": "ct-w07-000",
    "front": "Week 7 Diagnostic: In a graph G = (V, E), if |V| = 5, what is the dimension of its adjacency matrix?",
    "back": "Answer: B — An adjacency matrix has rows and columns corresponding to each vertex, so it is a |V| x |V| matrix (5 x 5)."
  },
  {
    "id": "ct-w07-001",
    "front": "Week 7 Diagnostic: In an undirected graph, what property does the adjacency matrix always have?",
    "back": "Answer: B — Since undirected edges are bidirectional ((u, v) = (v, u)), the adjacency matrix is symmetric."
  }
]