Practice Test: Question Set - 03
1. Which of the following can traverse the state space tree only in DFS manner?
- (A) Branch
and bound
- (B) Dynamic
programming
- (C) Greedy
algorithm
- (D) Backtracking
2. Which of the following is false in the case of a spanning tree of a graph G?
- (A) It is tree
that spans G
- (B) It is a sub-graph
of the G
- (C) It can be
either cyclic or acyclic
- (D) It includes
every vertex of the G
3. What is the heuristic function of greedy best-first search?
- (A) f(n) != h(n)
- (B) f(n) < h(n)
- (C) f(n) = h(n)
- (D) f(n) >
h(n)
4. How many successors are generated in backtracking search?
- (A) 1
- (B) 2
- (C) 3
- (D) 4
5. Which search algorithm imposes a fixed depth limit on nodes?
- (A) Depth-limited
search
- (B) Depth-first
search
- (C) Iterative
deepening search
- (D) Bidirectional
search
6. Branch and bound is a _________
- (A) Data
structure
- (B) Type of tree
- (C) Sorting
algorithm
- (D) Problem
solving technique
7. What is the evaluation function in A* approach?
- (A) Heuristic
function
- (B) Path cost
from start node to current node
- (C) Path cost
from start node to current node + Heuristic cost
- (D) Average of
Path cost from start node to current node and Heuristic cost
8. Consider a undirected graph G with vertices { A, B, C, D, E}. In graph G, every edge has distinct weight. Edge CD is edge with minimum weight and edge AB is edge with maximum weight. Then, which of the following is false?
- (A) Every
minimum spanning tree of G must contain CD
- (B) If AB is in
a minimum spanning tree, then its removal must disconnect G
- (C) No minimum
spanning tree contains AB
- (D) G has a
unique minimum spanning tree
9. Best-First search can be implemented using the following data structure
- (A) Queue
- (B) Stack
- (C) Priority
Queue
- (D) Circular
Queue
10. Uniform-cost search expands the node n with the _________
- (A) Lowest path
cost
- (B) Heuristic
cost
- (C) Highest path
cost
- (D) Average path
cost
11. Heuristic function h(n) is _________
- (A) Lowest path
cost
- (B) Cheapest
path from root to goal node
- (C) Estimated
cost of cheapest path from root to goal node
- (D) Average path
cost
12. Which search is complete and optimal when h(n) is consistent?
- (A) Best-first
search
- (B) Depth-first
search
- (C) Both
Best-first & Depth-first search
- (D) A* search
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