Distributed Computing MCQ's




Question 511 :
Which of the following technique is not used for scheduling process of distributed system.

  1. task assignment approach
  2. load balancing approach
  3. load sharing approach
  4. task management approach
  

Question 512 :
Writes by a single process are seen by all other processes in the order in which they were issued; however, writes from different processes may be seen in different orders by different processes.', above statement defines which consistency model?

  1. Causal Consistency Model
  2. FIFO consistency Model
  3. Sequential Consistency Model
  4. Strict consistency Model
  

Question 513 :
Election message is always sent to the process with _____

  1. Lower numbers
  2. Waiting processes
  3. Higher numbers
  4. Requesting Lower number of resources
  

Question 514 :
What is true about asynchronous communication

  1. in asynchronous communication most of the time there is no reply from the reciever end
  2. Sender and reciver process need to be active at the time of communication
  3. it uses procedure calling at the server's side
  4. in asynchronous communication there is always a reply from the reciever end
  

Question 515 :
A typical __________ program obtains a remote reference to one or more remote objects on a server and then invokes methods on them

  1. Client
  2. server
  3. thread
  4. concurrent
  

Question 516 :
Any successive write operation by a process on a data item x will be performed on a copy of x that is up to date with the value most recently read by that process.

  1. Monotonic-write
  2. Writes follows reads
  3. Read your writes
  4. Monotonic-read
  

Question 517 :
What is the other name for object middleware?

  1. Object request interface
  2. Object Request broker
  3. Object enabled broker
  4. Object enabled interface
  

Question 518 :
Which one of the following is not shared by threads?

  1. program counter
  2. stack register
  3. program counter and stack
  4. register
  

Question 519 :
_________is often used for Web caches

  1. Numerical deviation
  2. Staleness deviation
  3. Ordering deviation
  4. Time deviation
  

Question 520 :
Two forms of distributed information systems are:

  1. Transaction Processing System and Enterprise Application Integration.
  2. Transaction Product System and Enterprise Application Interrogation.
  3. Transparency Processing System and Independent Application Integration.
  4. Transaction Processing Software and Enterprise Access Integration.
  

Question 521 :
Which among the following is not performed be RPC Runtime

  1. Retransmission
  2. Routing
  3. Marshalling
  4. Encryption
  

Question 522 :
The ______________ is always a controller in the client-server Scenario.

  1. Client
  2. Slave
  3. Server
  4. User
  

Question 523 :
A process can be ___________

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

Question 524 :
Berkely’s and Christian’s clock synchronization methods are type of _______.

  1. Logical clock synchronization method
  2. Physical clock Synchronization method
  3. Scalar clock synchronization method
  4. Vector clock synchronization method
  

Question 525 :
Election message is always sent to the process with _______

  1. Lower numbers
  2. Waiting processes
  3. Higher numbers
  4. Requesting Lower number of resources
  

Question 526 :
Remote service model for file accessing has

  1. Reduced contention for the network
  2. Reduced network traffic
  3. Client’s request is performed at the server’s node
  4. No contention for the file servers
  

Question 527 :
The NFS servers

  1. are stateless
  2. save the current state of the request
  3. maybe stateless
  4. statefull
  

Question 528 :
In distributed systems, a logical clock is associated with ______________.

  1. each instruction
  2. each process
  3. each register
  4. each ALU
  

Question 529 :
How can we avoid deadlock

  1. resource allocation must be done at once
  2. there must be a fixed number of resources to allocate
  3. all deadlock process must be aborted
  4. inversion technique can be used
  

Question 530 :
RPC works between two processes. These processes must be ___________.

  1. Only on the same computer
  2. Only on different computers connected with a network
  3. on the same computer and also on different computers connected with a network
  4. on none of the computers
  

Question 531 :
In the distributed system, the goal of the task assignment approach is toassign the tasks of a process to the nodes. Consider there are two nodes n1and n2 and four tasks {T1, T2, T3, T4}. Tasks T1 are assigned to node n1and tasks T2,T3,T4 are assigned to node n2.Comunication cost is as given in table below. Considering serial task assignment, the communication incur will be T1, T2, T3, T4T1-> 0, 6, 4, 0T2-> 6, 0, 8, 10T3-> 4, 8, 0, 0T4=> 0, 10, 0, 0

  1. 18
  2. 22
  3. 15
  4. 10
  

Question 532 :
Which is not the ways mounting of the file system?

  1. Boot mounting
  2. Auto mounting
  3. Explicit mounting
  4. Copy mounting
  

Question 533 :
What is not true about Persistent Communication

  1. Message submitted for transmission is stored by communication system for as long as it takes to deliver it to receiver
  2. Not necessary for receiver to be executing at the time message submission
  3. Not necessary for sender to continue execution after submitting a message
  4. Sender and receiver has to be active simultaneously
  

Question 534 :
Which type of parallelism makes use of multiple processing elements simultaneously for solving any problem.

  1. Parallel Computing
  2. Cloud computing
  3. Grid computing
  4. Network computing
  

Question 535 :
A process can enter into its critical section ____________

  1. anytime
  2. when it receives a reply message from its parent process
  3. when it receives a reply message from all other processes in the system
  4. all the time
  

Question 536 :
Load sharing algorithms employ the load estimation policy to measure load of a node. In sender initiated policy,

  1. Lightly loaded nodes search for heavily loaded nodes
  2. Heavily loaded nodes search for heavily loaded nodes
  3. Heavily loaded nodes search for lighlty loaded nodes
  4. Lightly loaded nodes search for lighlty loaded nodes
  

Question 537 :
TCP is reliable _______ protocol which supports reliable point to point communication in distributed system.

  1. network
  2. transport
  3. communication
  4. system
  

Question 538 :
The degree at which the conflicting read/write access is tolerated is defined as_________.

  1. Concurrency
  2. Consistency
  3. Availability
  4. Isolation
  

Question 539 :
Another layer between distributed and network operating system is _________ operating system

  1. Middleware
  2. Interprocess
  3. Firmware
  4. Application
  

Question 540 :
In which transmission mode data transfer is subject to maximum and minimum end to end delay

  1. Synchronous transmission mode
  2. Asynchronous transmission mode
  3. Isochronous transmission mode
  4. None of the above
  
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