Distributed Computing MCQ's




Question 451 :
The sever and client computer interact with each other using ________

  1. Specific Port Number and IP Address
  2. MAC Address
  3. MAC Address and Port Number
  4. MAC Address and IP Address
  

Question 452 :
Pretransfering also known as__

  1. Premigrating
  2. Precopying
  3. Prefiltering
  4. Postcopying
  

Question 453 :
What is not a major reason for building distributed systems?

  1. Resource sharing
  2. Computation speedup
  3. Reliability
  4. Simplicity
  

Question 454 :
Processes on the remote systems are identified by _________________

  1. host ID
  2. host name and identifier
  3. identifier
  4. process ID
  

Question 455 :
which of the service offered by middleware is used to do query on the distributed objects?

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

Question 456 :
RPC is used to ___________.

  1. establish a server on remote machine that can respond to queries
  2. retrieve information by calling a query
  3. establish a connection to server on remote machine that can respond to queries and retrieve information by calling a query
  4. invoke the method on remote object
  

Question 457 :
Communication channels may suffer through

  1. protocol
  2. transport
  3. arbitrary failures
  4. reliable communication
  

Question 458 :
A type of the failure model where a server fails to respond to incoming requests.

  1. Crash failure
  2. Response failure
  3. Omission failure
  4. Arbitrary failure
  

Question 459 :
In which the access takes place when different processes try to access the same data concurrently and the outcome of the execution depends on the specific order, is called

  1. dynamic condition
  2. race condition
  3. essential condition
  4. critical condition
  

Question 460 :
What are the exceptions which have to be handled in a RMI client program?

  1. MalFormedURLException
  2. NotFoundException
  3. ArithmeticException
  4. Class-Not-Found-Excepti on
  

Question 461 :
Which one of the following is a distributed file system?

  1. andrew file system
  2. server file system
  3. newer network
  4. dc file system
  

Question 462 :
Which of the following is not an advantage of multiprocessor systems

  1. Increased throughput
  2. Economy of scale
  3. Increased reliability
  4. Optimise the program size
  

Question 463 :
In distributed systems, election algorithms assumes that _____

  1. a unique priority number is associated with each active process in system
  2. there is no priority number associated with any process
  3. priority of the processes is not required
  4. same priority number is associated to two process at a time
  

Question 464 :
In which the access takes place when different processes try to access the same data concurrently and the outcome of the execution depends on the specific order, is called

  1. dynamic condition
  2. race condition
  3. essential condition
  4. critical condition
  

Question 465 :
For each critical section (CS) execution, maekawa’s algorithm requires ___________ messages per CS execution and the Synchronization delay in the algorithm is ____________.

  1. √N , T
  2. 2√N , T
  3. 3√N , T
  4. 3√N , 2T
  

Question 466 :
Which of the following is true in case of the NFS server?

  1. They are stateless
  2. They save the current state of the request
  3. They are stateful
  4. They save previous state
  

Question 467 :
A cache in which location is the easiest to implement

  1. Server’s main memory
  2. Client’s disk
  3. Client’s main memory
  4. Server’s Disk
  

Question 468 :
Which one of the following explains the sequential file access method?

  1. random access according to the given byte number
  2. read bytes one at a time, in order
  3. read/write sequentially by record
  4. read/write randomly by record
  

Question 469 :
The address of the next instruction to be executed by the current process is provided by the __________

  1. Program counter
  2. CPU registers
  3. Process stack
  4. Pipe
  

Question 470 :
which is not type of Distributed computing system?

  1. Grid Computing
  2. Cluster Computing
  3. Health Care System
  4. Cloud Computing
  

Question 471 :
Which multicast delivers messages so that potential causality between different messages is preserved

  1. Unordered multicasts
  2. FIFO-ordered multicasts
  3. Causally-ordered multicasts
  4. Totally-ordered multicasts
  

Question 472 :
PRAM means _________________________________

  1. Process Random-Access Memory Consistency Model
  2. Pipelined Random-Access Memory Consistency Model
  3. Pipelined Readonly-Access Memory Consistency Model
  4. Pipelined Random-Access Matrix Consistency Model
  

Question 473 :
The capabiliy of a system to detcet - recover from failure is known as _____________________.

  1. fault tolerant - portable
  2. scalable - robust
  3. fault tolerant - robust
  4. potable - scalable
  

Question 474 :
Which ordering uses global timestamps as message id?

  1. Total ordering
  2. FIFO ordering
  3. Causal Ordering
  4. Absolute Ordering
  

Question 475 :
File accessing models in DFS mainly depends on i): Method used for accessing remote files ii)Unit of data access

  1. Only i
  2. Only ii
  3. Both i and ii
  4. Both i and ii are incorrect
  

Question 476 :
Maekawa's algorithm doesn’t require ____ to handle deadlocks

  1. FAILED message
  2. INQUIRE message
  3. PRIORITY message
  4. YIELD message
  

Question 477 :
The Ricart Agarwala mutual exclusion algorithm requires _______ messages per Critical Section invocation

  1. (N - 1)
  2. 3(N - 1)
  3. 2(N - 1)
  4. 5(N - 1)
  

Question 478 :
Which of the following is correct about migration transparency?

  1. Local and remote objects should be accessed in a uniform way
  2. Objects are referred by logical names which hide the physical location of the objects
  3. Movement of object from one system to the other is invisible to user
  4. Sharing of objects without interference
  

Question 479 :
A class of message-oriented middleware services, generally known as -

  1. Message Passing System
  2. Message Binding System
  3. Message Queuing Systems
  4. Call By References System
  

Question 480 :
Select which state is true for the Distributed File System i) is simply a classical model of a file system distributed across multiple machines. The purpose is to promote sharing of dispersed files. ii)A file system provides a service for clients. The server interface is the normal set of file operations: create, read, etc. on files.iii)The resources on a particular machine are local to itself.Resources on other machines are remote.

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