A system has 6 identical resources and N processes competing for them. Each…

2015

A system has 6 identical resources and N processes competing for them. Each process can request at most 2 resources. Which one of the following values of N could lead to a deadlock?

Answer: D. 6 — Total resources R=6, max per process = 2. Deadlock occurs if R ≤ k⋅ (n−1) → 6 ≤ 2 ⋅ (n−1) → n ≥ 4. Among options, only 6 satisfies → Deadlock possible.…

  1. A.

    1

  2. B.

    2

  3. C.

    3

  4. D.

    6

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Correct answer: D

  • Total resources R=6, max per process = 2.

  • Deadlock occurs if R ≤ k⋅ (n−1) → 6 ≤ 2 ⋅ (n−1) → n ≥ 4.

  • Among options, only 6 satisfies → Deadlock possible.

Answer: D → 6

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