Distributed Computing MCQ's




Question 601 :
In Suzuki Kasami algorithm, the time required for a requesting site to enter the CS is _____

  1. Infinite
  2. finite
  3. zero
  4. unpredictable
  

Question 602 :
Synchronization tool is?

  1. thread
  2. pipe
  3. semaphore
  4. socket
  

Question 603 :
which of the service offered by middleware is allows to share - access the resources Concurrently?

  1. Querying service
  2. Persistance service
  3. Concurrency service
  4. Naming service
  

Question 604 :
MPI_bsend is equivalent to _____.

  1. One way RPC
  2. Two wayRPC
  3. Synchronous RPC
  4. Asynchronous RPC
  

Question 605 :
The consistency model which do not handle simultaneous updates-

  1. data centric model
  2. Client centric model
  3. server centric model
  4. traffic centric model
  

Question 606 :
Multiprogramming is mainly accomplished by:

  1. os
  2. software
  3. hardware
  4. program
  

Question 607 :
The security of distributed system can be achieved in terms of various security goals,which one is not the goal

  1. Authentication
  2. Authorization
  3. Confidentiality
  4. Denial Service
  

Question 608 :
Which of the following network is used to dissiminate information to its group members.

  1. Prior network
  2. Chief network
  3. Prime Network
  4. Overlay network
  

Question 609 :
A monitor is a module and monitor which of the following can encapsulates

  1. shared data structures
  2. procedures that operate on shared data structure
  3. synchronization between concurrent procedure invocation
  4. all of the mentioned
  

Question 610 :
Preemptive Shortest Job First scheduling is sometimes called ___

  1. Fast SJF scheduling
  2. EDF scheduling – Earliest Deadline First
  3. HRRN scheduling – Highest Response Ratio Next
  4. SRTN scheduling – Shortest Remaining Time Next
  

Question 611 :
In RMI, packing and unpacking of data into message in done by -

  1. client and server
  2. stub
  3. skeleton
  4. stub and skeleton
  

Question 612 :
What are the characteristics of computation migration?

  1. transfer data by entire file or immediate portion required
  2. transfer the computation rather than the data
  3. execute an entire process or parts of it at different sites
  4. execute an entire process or parts of it at same site
  

Question 613 :
A classes of failure that can occur in RPC systems, as :

  1. The server crashes after receiving a request And Client Cannot Locate the Server
  2. Client Cannot Locate the Server
  3. The server crashes after receiving a request.
  4. Server crashes
  

Question 614 :
Arbitrary failure may ouccur in form of

  1. duplicate message
  2. protocol
  3. reliable communication
  4. address spacde
  

Question 615 :
A request, at the risk of server never execution is _________.

  1. Never Reissue
  2. Always Reissue
  3. Reissue a request on acknoledgment
  4. Reissue a request on no acknoledgment
  

Question 616 :
In a distributed file system, _______ is mapping between logical and physical objects.

  1. client interfacing
  2. naming
  3. migration
  4. heterogeneity
  

Question 617 :
In socket programming, client sends request to the server using which primitive?

  1. Socket
  2. Connect
  3. Send
  4. Receive
  

Question 618 :
The ___________ layer, which provides the interface that client and server application objects use to interact with each other.

  1. increasing
  2. count
  3. stub/skeleton
  4. bit
  

Question 619 :
The security of a distributed system can be achieved by ______ used for their interactions .

  1. securing the processes and the channels
  2. securing the channels not process
  3. not securing the processes and the channels
  4. securing the processes not the channels
  

Question 620 :
In RPC, array is passed from client to server using

  1. Call by value
  2. call by reference
  3. call-by-copy/restore
  4. None of the above
  

Question 621 :
A process can be ___________

  1. single threaded
  2. tripalthreaded
  3. single threaded and multithreaded
  4. doublethreaded
  

Question 622 :
Message passing provides a mechanism to allow processes to communicate and to synchronize their actions ________

  1. By sharing the same address space
  2. without sharing the same address space
  3. by sharing the same Process Identifier
  4. by sharing the same process number
  

Question 623 :
Which is the approach for naming the files i)Files are named with a combination of host and local name.ii)Remote directories are mounted to local directories iii)A single global name structure spans all the files in the system

  1. i only
  2. ii only
  3. ii and iii only
  4. i,ii and iii
  

Question 624 :
What is key idea to select coordinator in Bully Algorithm?

  1. Select process with highest ID
  2. Select process with lowest ID
  3. Any process who identified that coordinator is failed
  4. Random
  

Question 625 :
What are the characteristics of data migration?

  1. transfer data by entire file or immediate portion required
  2. transfer the computation rather than the data
  3. execute an entire process or parts of it at different sites
  4. execute limited portion of data
  

Question 626 :
Which of the following process can be affected by other processes during execution in the system?

  1. init process
  2. child process
  3. parent process
  4. cooperating process
  

Question 627 :
Time interval from a request send to its CR execution completed is known as______

  1. Synchronization delay
  2. System throughput
  3. Message complexity
  4. Response time
  

Question 628 :
IDLs describe an interface in a ________ way

  1. language-dependent
  2. language-independent
  3. language oriented
  4. language specified
  

Question 629 :
When a user refers to a particular file?

  1. system MFD is searched
  2. his own UFD is not searched
  3. both MFD and UFD are searched
  4. every directory is searched
  

Question 630 :
In ______ System any communication between the processors takes place through the shared memory.

  1. Tightly Coupled system
  2. Loosely Coupled System
  3. Middleware System
  4. Scientific System
  
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