Deadlock and termination detection algorithms MCQs – Parallel and Distributed Computing

1. What is the primary goal of termination detection algorithms?

a. Detecting and recovering from deadlocks
b. Preventing deadlocks
c. Detecting when a distributed computation has completed
d. Maximizing hardware diversity

Answer: c

2. Which algorithm is commonly used for global termination detection in a distributed system?

a. Two-Phase Commit
b. Chandy-Misra-Hass
c. Vector-Clock algorithm
d. Lamport’s bakery algorithm

Answer: b

3. In termination detection, what does the “Marker” represent in the Chandy-Misra-Hass algorithm?

4.a. A process that has completed its execution
b. A process that is waiting for a resource
c. A process that is part of a deadlock
d. A process that has sent termination messages to all other processes

Answer: a

5.Which algorithm is known for its use of “snapshots” for termination detection?

a. Chandy-Misra-Hass algorithm
b. Vector-Clock algorithm
c. Two-Phase Commit
d. Banker’s algorithm

Answer: a

6.What is the primary focus of the “Snapshot” algorithm in termination detection?

a. Detecting and recovering from deadlocks
b. Minimizing fault tolerance
c. Capturing the global state of a distributed system
d. Efficient load balancing

Answer: c
7.In termination detection, what is the purpose of the “Termination Message”?
a. A message indicating the presence of a deadlock
b. A message indicating that a process has completed its execution
c. A message requesting additional resources
d. A message indicating the start of a distributed computation

Answer: b

8.Which algorithm is commonly used for local termination detection in a distributed system?

a. Chandy-Misra-Hass algorithm
b. Vector-Clock algorithm
c. Two-Phase Commit
d. Snapshot algorithm

Answer: b

9.What is the significance of the “Snapshot” in the Snapshot algorithm for termination detection?

a. Capturing the global state of a distributed system
b. Detecting and recovering from deadlocks
c. Minimizing fault tolerance
d. Efficient load balancing

Answer: a

10.In termination detection, what does the “Flush” operation do in the Chandy-Misra-Hass algorithm?

a. Flushes out deadlock processes
b. Flushes out terminated processes
c. Flushes out all messages in the system
d. Flushes out processes waiting for a resource

Answer: b

11.Which algorithm is known for its use of “snapshots” for termination detection?

a. Chandy-Misra-Hass algorithm
b. Vector-Clock algorithm
c. Two-Phase Commit
d. Banker’s algorithm

Answer: a

12.What is the primary advantage of using a “Termination Message” in termination detection?

a. Efficient load balancing
b. Minimizing fault tolerance
c. Detecting when a process enters the critical section
d. Identifying when a process has completed its execution

Answer: d

13.Which algorithm is commonly used for distributed termination detection based on marking processes?

a. Chandy-Misra-Hass algorithm
b. Vector-Clock algorithm
c. Two-Phase Commit
d. Snapshot algorithm

Answer: a

14.In termination detection, what is the purpose of the “Marker” in the Chandy-Misra-Hass algorithm?

a. A process that has completed its execution
b. A process that is waiting for a resource
c. A process that is part of a deadlock
d. A process that has sent termination messages to all other processes

Answer: a

15.Which algorithm is known for its use of “Termination Points” for distributed termination detection?

a. Chandy-Misra-Hass algorithm
b. Vector-Clock algorithm
c. Two-Phase Commit
d. Snapshot algorithm

Answer: c

16.What is the primary purpose of the “Termination Message” in termination detection?

a. A message indicating the presence of a deadlock
b. A message indicating that a process has completed its execution
c. A message requesting additional resources
d. A message indicating the start of a distributed computation

Answer: b

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