Distributed Computer System (DCS) MCQs with answers Page - 9

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Q. ___ is a framework for distributed components using a messaging paradigm.

  • (A) CORBA
  • (B) DCOM
  • (C) DDObjects
  • (D) Jt

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Q. all related objects moved and left to a server upon the first RPC

  • (A) call by value
  • (B) call by move
  • (C) call by visit
  • (D) call by reference

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Q. What is the feature of stateful server?

  • (A) longer server recovery time
  • (B) quick recovery after reboot
  • (C) file operations must be idempotent
  • (D) simple server design

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Q. is a process that prevents multiple threads or processes from accessing shared resources at the same time.

  • (A) critical section
  • (B) deadlock
  • (C) message passing
  • (D) mutual exclusion

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Q. Absolute time synchronization can be achieved using

  • (A) vector time stamping method
  • (B) christian’s method
  • (C) lamport’s method
  • (D) ricart-agrawala algorithm

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Q. Which mutual exclusion algorithm is useful when the membership of the group is unknown?

  • (A) centralized
  • (B) lamport’s.
  • (C) token ring
  • (D) decentralized algorithm

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Q. Which event is concurrent with the vector clock (2, 8, 4)?

  • (A) (3,9,5)
  • (B) (3,8,4)
  • (C) (1,7,3)
  • (D) (4,8,2)

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Q. A client gets a timestamp of 4:12:30.500 from a
time server. The elapsed time between the request
and response was 20 msec (0.020 sec).
The current
time on the client is 4:12:30.510. Using Cristian’s
algorithm, what is the time set to on the
client?

  • (A) 1970-01-01 04:12:30
  • (B) 1970-01-01 04:12:30
  • (C) 1970-01-01 04:12:32
  • (D) 1970-01-01 04:12:32

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Q. NTP is layer protocol.

  • (A) application
  • (B) session
  • (C) transport
  • (D) physical

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Q. Which of the following is an example of election algorithm.

  • (A) berkley algorithm:
  • (B) bully algorithm.
  • (C) cristian’s algorithm
  • (D) lamport’s

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