1. A deadlocked state occurs whenever: A) a process is waiting for I/O to a device that does not exist B) the system has no available free resources C) every process in a set is waiting for an event that can only be caused by another process in the set D) a process is unable to release its request for a resource after use 2. One necessary condition for deadlock is held in a non-sharable mode. which states that at least one resource must be A) hold and wait B) mutual exclusion C) circular wait D) no preemption 3. One necessary condition for deadlock is one resource and waiting to acquire additional resources. A) hold and wait B) mutual exclusion C) circular wait D) no preemption which states that a process must be holding

1. A deadlocked state occurs whenever: A) a process is waiting for I/O to a device that does not exist B) the system has no available free resources C) every process in a set is waiting for an event that can only be caused by another process in the set D) a process is unable to release its request for a resource after use 2. One necessary condition for deadlock is held in a non-sharable mode. which states that at least one resource must be A) hold and wait B) mutual exclusion C) circular wait D) no preemption 3. One necessary condition for deadlock is one resource and waiting to acquire additional resources. A) hold and wait B) mutual exclusion C) circular wait D) no preemption which states that a process must be holding

Computer Networking: A Top-Down Approach (7th Edition)

7th Edition

ISBN:9780133594140

Author:James Kurose, Keith Ross

Publisher:James Kurose, Keith Ross

Chapter1: Computer Networks And The Internet

Section: Chapter Questions

Problem R1RQ: What is the difference between a host and an end system? List several different types of end...

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Question

8. A cycle in a resource-allocation graph is:
A) a necessary and sufficient condition for deadlock in the case that each resource has more than
one instance
B) a necessary and sufficient condition for a deadlock in the case that each resource has exactly
one instance
C) a sufficient condition for a deadlock in the case that each resource has more than once
instance
D) is neither necessary nor sufficient for indicating deadlock in the case that each resource has
exactly one instance
9. To handle deadlocks, operating systems most often:
A) pretend that deadlocks never occur
B) use protocols to prevent or avoid deadlocks
C) detect and recover from deadlocks
D) None of the above

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