An operating system contains 3 user processes each requiring 2 units of…

1997

An operating system contains 3 user processes each requiring 2 units of resource R. The minimum number of units of R such that no deadlocks will ever arise is

Answer: C. 4 — To prevent deadlock, apply the formula n(k-1)+1. With 3 processes needing 2 units each: 3(2-1)+1 = 4. This ensures at least one process completes, releasing…

  1. A.

    3

  2. B.

    5

  3. C.

    4

  4. D.

    6

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Correct answer: C

To prevent deadlock, apply the formula n(k-1)+1. With 3 processes needing 2 units each: 3(2-1)+1 = 4. This ensures at least one process completes, releasing resources for others.

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