
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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91. | The wait-for graph is a deadlock detection |
a. | all resources have a single instance |
b. | all resources have multiple instances |
c. | all resources have a single 7 multiple instance |
d. | all of the mentioned |
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- 1. Input: An undirected weighted graph G = (V, E, w)2. Output: An MST T = (V, E) of G3. T ← Ø4. Sort edges of G in non-increasing order and place them in a queue Q.5. repeat6. Remove the first edge (u, v) from Q and add it to T if it does not form a cyclewith the edges edge that are already included in T .7. until there are n − 1 edges in T .We can use union-find data structure to find whether the two endpoints of theselected edge are in the same set (the current MST fragment). It can be shown thatthis algorithm is correct and has a time complexity of O(m log n) [1].Give Python Implementation of algoarrow_forwardTrue or false helparrow_forward12. If some resources have only a single instance, then we can use the wait-for graph. True False answer with true or false no explanation neededarrow_forward
- 6. Consider the following graph: 1 2 5 4 8 3 6 9 7 List the order in which the vertices are visited with a topological sort, as shown in class. Always process the vertex with the lowest number first if several vertices have indegree 0. 10arrow_forwardA. Let G be a graph on 17 vertices. We know that G contains at most one cycle. How many edges can G contain at the most? B. The expression r is written in post-order notation (also referred to as RPN). What value does r evaluate to? r = 1 6 7 + - 5 3 + 2 * +arrow_forward
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