Top 150+ Solved Distributed Computing System (DCS) MCQ Questions Answer
Q. In a distributed file system, a file is uniquely identified by ___________
a. host name
b. local name
c. the combination of host name and local name
d. none of the mentioned
Q. There is no need to establish and terminate a connection through open and close operation in ___________
a. stateless file service
b. stateful file service
c. both stateless and stateful file service
d. none of the mentioned
Q. In distributed file system, file name does not reveal the file’s ___________
a. local name
b. physical storage location
c. both local name and physical storage location
d. none of the mentioned
Q. Which one of the following is a distributed file system?
a. andrew file system
b. network file system
c. novel network
d. all of the mentioned
Q. What are the characteristics of mutual exclusion using centralized approach?
a. one processor as coordinator which handles all requests
b. it requires request,reply and release per critical section entry
c. the method is free from starvation
d. all of the mentioned
Q. What are the advantages of token(with rings) passing approach?i) One processor as coordinator which handles all requestsii) No starvation if the ring is unidirectionaliii) There are many messages passed per section entered if few users want to get in sectioniv) One processor as coordinator which handles all requestsv) Only one message/entry if everyone wants to get in
a. i
b. ii and iii
c. i, ii and iii
d. i, ii and iv
Q. What are the characteristics of atomicity?
a. all operations associated are executed to completion or none are performed
b. one processor as coordinator which handles all requests
c. when responses are received from all processes, then the process can enter its critical section
d. use communication links
Q. What things are the transaction coordinator is responsible for?
a. starting the execution of the transaction
b. breaking transaction into a number of subtransactions
c. coordinating the termination of the transaction
d. all of the mentioned
Q. Which of the following advantages follows the single coordinator approach?
a. simple implementation
b. simple deadlock handling
c. bottleneck
d. all of the mentioned
Q. Which of the following disadvantages follows the single coordinator approach?
a. bottleneck
b. slow response
c. deadlock
d. one request per second
Q. What are the parts of a global unique identifier?
a. local unique timestamp
b. remote timestamp
c. clock number
d. all of the mentioned
Q. In distributed systems, a logical clock is associated with ______________
a. each instruction
b. each process
c. each register
d. none of the mentioned
Q. If timestamps of two events are same, then the events are ____________
a. concurrent
b. non-concurrent
c. monotonic
d. non-monotonic
Q. If a process is executing in its critical section ____________
a. any other process can also execute in its critical section
b. no other process can execute in its critical section
c. one more process can execute in its critical section
d. none of the mentioned
Q. A process can enter into its critical section ____________
a. anytime
b. when it receives a reply message from its parent process
c. when it receives a reply message from all other processes in the system
d. none of the mentioned