OS · Deadlock interview questions

1. A.a state where each process in a set waits forever for a resource held by another in the set
2. B.a state in which some ordering of processes lets each finish without causing deadlock
3. C.a directed graph of processes and resources whose cycles can indicate a deadlock
4. D.a non-preemptive prevention scheme where an older process waits but a younger requester is killed

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1. A.Wait-die scheme
2. B.Hold and wait condition
3. C.Deadlock avoidance
4. D.Deadlock

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1. A.Deadlock — the Coffman condition that a process holds resources while waiting to acquire additional ones
2. B.Deadlock — a state where each process in a set waits forever for a resource held by another in the set
3. C.Deadlock — a state where processes keep changing state in response to each other but make no real progress
4. D.Deadlock — a directed graph of processes and resources whose cycles can indicate a deadlock

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1. A.the Coffman condition that at least one resource must be held in a non-shareable mode
2. B.resolving an existing deadlock by aborting processes or preempting their resources
3. C.a non-preemptive prevention scheme where an older process waits but a younger requester is killed
4. D.a preemptive prevention scheme where an older process preempts a younger one holding a resource

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1. A.No preemption condition
2. B.Livelock
3. C.Deadlock
4. D.Mutual exclusion condition

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1. A.Mutual exclusion condition — using advance knowledge of resource needs to keep the system in a safe state at all times
2. B.Mutual exclusion condition — the Coffman condition that at least one resource must be held in a non-shareable mode
3. C.Mutual exclusion condition — a state where processes keep changing state in response to each other but make no real progress
4. D.Mutual exclusion condition — a state in which some ordering of processes lets each finish without causing deadlock

Answer + AI explanation with a free account

1. A.the Coffman condition that a resource can be released only voluntarily by the process holding it
2. B.a state in which some ordering of processes lets each finish without causing deadlock
3. C.a non-preemptive prevention scheme where an older process waits but a younger requester is killed
4. D.the Coffman condition that a process holds resources while waiting to acquire additional ones

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1. A.Deadlock prevention
2. B.Deadlock detection
3. C.Deadlock
4. D.Hold and wait condition

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1. A.Hold and wait condition — the Coffman condition that a closed chain of processes each waits for a resource the next one holds
2. B.Hold and wait condition — resolving an existing deadlock by aborting processes or preempting their resources
3. C.Hold and wait condition — using advance knowledge of resource needs to keep the system in a safe state at all times
4. D.Hold and wait condition — the Coffman condition that a process holds resources while waiting to acquire additional ones

Answer + AI explanation with a free account

1. A.a preemptive prevention scheme where an older process preempts a younger one holding a resource
2. B.a state where each process in a set waits forever for a resource held by another in the set
3. C.the Coffman condition that a resource can be released only voluntarily by the process holding it
4. D.resolving an existing deadlock by aborting processes or preempting their resources

Answer + AI explanation with a free account

1. A.Mutual exclusion condition
2. B.Deadlock prevention
3. C.Safe state
4. D.No preemption condition

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1. A.No preemption condition — a directed graph of processes and resources whose cycles can indicate a deadlock
2. B.No preemption condition — a preemptive prevention scheme where an older process preempts a younger one holding a resource
3. C.No preemption condition — the Coffman condition that a closed chain of processes each waits for a resource the next one holds
4. D.No preemption condition — the Coffman condition that a resource can be released only voluntarily by the process holding it

Answer + AI explanation with a free account

1. A.a state where processes keep changing state in response to each other but make no real progress
2. B.the Coffman condition that a resource can be released only voluntarily by the process holding it
3. C.the Coffman condition that a closed chain of processes each waits for a resource the next one holds
4. D.letting deadlocks occur, then finding them with an algorithm and recovering afterward

Answer + AI explanation with a free account

1. A.Deadlock
2. B.Deadlock avoidance
3. C.Circular wait condition
4. D.Safe state

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1. A.Circular wait condition — the Coffman condition that a closed chain of processes each waits for a resource the next one holds
2. B.Circular wait condition — a state where each process in a set waits forever for a resource held by another in the set
3. C.Circular wait condition — resolving an existing deadlock by aborting processes or preempting their resources
4. D.Circular wait condition — the Coffman condition that a resource can be released only voluntarily by the process holding it

Answer + AI explanation with a free account

1. A.the Coffman condition that a process holds resources while waiting to acquire additional ones
2. B.letting deadlocks occur, then finding them with an algorithm and recovering afterward
3. C.a state where processes keep changing state in response to each other but make no real progress
4. D.a directed graph of processes and resources whose cycles can indicate a deadlock

Answer + AI explanation with a free account

1. A.Deadlock
2. B.Banker's algorithm
3. C.Resource allocation graph
4. D.Deadlock recovery

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1. A.Resource allocation graph — a preemptive prevention scheme where an older process preempts a younger one holding a resource
2. B.Resource allocation graph — using advance knowledge of resource needs to keep the system in a safe state at all times
3. C.Resource allocation graph — a directed graph of processes and resources whose cycles can indicate a deadlock
4. D.Resource allocation graph — the Coffman condition that a resource can be released only voluntarily by the process holding it

Answer + AI explanation with a free account

1. A.ensuring deadlock cannot occur by structurally negating one of the four necessary conditions
2. B.a state where each process in a set waits forever for a resource held by another in the set
3. C.a directed graph of processes and resources whose cycles can indicate a deadlock
4. D.the Coffman condition that a process holds resources while waiting to acquire additional ones

Answer + AI explanation with a free account

1. A.Wound-wait scheme
2. B.Deadlock prevention
3. C.Deadlock recovery
4. D.No preemption condition

Answer + AI explanation with a free account

1. A.Deadlock prevention — the Coffman condition that a closed chain of processes each waits for a resource the next one holds
2. B.Deadlock prevention — the Coffman condition that a process holds resources while waiting to acquire additional ones
3. C.Deadlock prevention — the Coffman condition that at least one resource must be held in a non-shareable mode
4. D.Deadlock prevention — ensuring deadlock cannot occur by structurally negating one of the four necessary conditions

Answer + AI explanation with a free account

1. A.an avoidance algorithm that grants a request only if the resulting state is still safe
2. B.using advance knowledge of resource needs to keep the system in a safe state at all times
3. C.letting deadlocks occur, then finding them with an algorithm and recovering afterward
4. D.a preemptive prevention scheme where an older process preempts a younger one holding a resource

Answer + AI explanation with a free account

1. A.Deadlock prevention
2. B.Deadlock detection
3. C.Deadlock
4. D.Deadlock avoidance

Answer + AI explanation with a free account

1. A.Deadlock avoidance — the Coffman condition that a closed chain of processes each waits for a resource the next one holds
2. B.Deadlock avoidance — using advance knowledge of resource needs to keep the system in a safe state at all times
3. C.Deadlock avoidance — a state in which some ordering of processes lets each finish without causing deadlock
4. D.Deadlock avoidance — a non-preemptive prevention scheme where an older process waits but a younger requester is killed

Answer + AI explanation with a free account

1. A.a preemptive prevention scheme where an older process preempts a younger one holding a resource
2. B.a state where each process in a set waits forever for a resource held by another in the set
3. C.letting deadlocks occur, then finding them with an algorithm and recovering afterward
4. D.the Coffman condition that a process holds resources while waiting to acquire additional ones

Answer + AI explanation with a free account

1. A.Banker's algorithm
2. B.Deadlock detection
3. C.Circular wait condition
4. D.No preemption condition

Answer + AI explanation with a free account

1. A.Deadlock detection — a directed graph of processes and resources whose cycles can indicate a deadlock
2. B.Deadlock detection — the Coffman condition that a process holds resources while waiting to acquire additional ones
3. C.Deadlock detection — a state where processes keep changing state in response to each other but make no real progress
4. D.Deadlock detection — letting deadlocks occur, then finding them with an algorithm and recovering afterward

Answer + AI explanation with a free account

1. A.a directed graph of processes and resources whose cycles can indicate a deadlock
2. B.a non-preemptive prevention scheme where an older process waits but a younger requester is killed
3. C.an avoidance algorithm that grants a request only if the resulting state is still safe
4. D.the Coffman condition that a resource can be released only voluntarily by the process holding it

Answer + AI explanation with a free account

1. A.Resource allocation graph
2. B.Livelock
3. C.Deadlock recovery
4. D.Banker's algorithm

Answer + AI explanation with a free account

1. A.Banker's algorithm — a directed graph of processes and resources whose cycles can indicate a deadlock
2. B.Banker's algorithm — a state in which some ordering of processes lets each finish without causing deadlock
3. C.Banker's algorithm — a state where processes keep changing state in response to each other but make no real progress
4. D.Banker's algorithm — an avoidance algorithm that grants a request only if the resulting state is still safe

Answer + AI explanation with a free account