Computer Distributed Computing (CDC) MCQ's




Question 721 :
What is the feature of stateful server?

  1. Longer server recovery time
  2. Quick recovery after reboot
  3. File operations must be idempotent
  4. Simple server design
  

Question 722 :
The aim of load sharing approach is to refrain nodes from being _______ nodes.

  1. Dead
  2. Idle
  3. Strong
  4. Busy
  

Question 723 :
If two event a and b are parallel, then ____________.

  1. a and b monotonic
  2. C = C
  3. C > C
  4. C < C
  

Question 724 :
Virtualization that creates one single address space architecture is called ______.

  1. Loosely coupled
  2. Peer-to-Peer
  3. Space-based
  4. Tightly coupled
  

Question 725 :
The effect of a write operation by a process on data item x will always be seen by a successive read operation on x by the same process.

  1. Read-your-writes
  2. Monotonic-writes
  3. Monotonic-Reads
  4. Writes-follow-reads
  

Question 726 :
A middleware layer between the stub skeleton and transport.

  1. remote layer
  2. instruction layer
  3. reference layer
  4. remote reference layer
  

Question 727 :
What is the advantage of a vector clock over Lamport's logical clock?

  1. Catch causality
  2. avoid deadlock
  3. avoid linear relationship
  4. set nonlinear relationship
  

Question 728 :
Suzuki-Kasami's Broadcast Algorithm is an

  1. Non- token based algorithm.
  2. Token based algorithm.
  3. Centralized Based algorithm
  4. physical clock synchronization algorithm.
  

Question 729 :
Which is not desirable feature of a good distributed system

  1. User mobility
  2. Performance
  3. Data Intergrity
  4. Homogeneity
  

Question 730 :
Which among below is not a technique commonly used for scaling in Distributed System

  1. Hiding Communication Latency
  2. Hide Performance
  3. Hide Distribution
  4. Hide Replication
  

Question 731 :
Arbitrary failure may ouccur in form of

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

Question 732 :
A remote object is ______ of a class that implements a remote interface.

  1. function
  2. call
  3. method
  4. instance
  

Question 733 :
Which of the following is a disadvantage of replication?

  1. Reduced network traffic
  2. If the database fails at one site, a copy can be located at another site.
  3. Each site must have the same storage capacity.
  4. Each transaction may proceed without coordination across the network.
  

Question 734 :
When a group can mask any k concurrent member failures,it is saidto be k-fault tolerant.

  1. k is called max limit of fault tolerance.
  2. k is called degree of fault tolerance.
  3. k is called tolerance threshold
  4. k is called fault tolerance constant.
  

Question 735 :
Network operating system runs on

  1. Server
  2. Every system in network
  3. Client machines only
  4. Inter- Network
  

Question 736 :
_________ class contains an implementation of a proxy.

  1. client
  2. server
  3. RMI
  4. object
  

Question 737 :
In all reliable multicast group communication ______

  1. n' response expected from the receiver
  2. response from any of the receiver required
  3. response from 'm'(1
  4. response needed from all the receivers
  

Question 738 :
______supports reliable servers for all network clients accessing transparent and homogeneous namespace file locations.

  1. Andrew File System
  2. Distributed management System
  3. Asynchronous system
  4. Synchronous System
  

Question 739 :
_______________ in NFS involves the parsing of a path name into separate directory entries – or components.

  1. Path parse
  2. Path name parse
  3. Path name translation
  4. Path name parsing
  

Question 740 :
RPC allows a computer program to cause a subroutine to execute in _______.

  1. its own address space
  2. another address space
  3. both its own address space and another address space
  4. applications address space
  

Question 741 :
Amoeba is belongs to which unit data transfer model used for file accessing in DFS

  1. File Level Transfer Mode
  2. Byte Level Transfer Model
  3. Record Level Transfer Model
  4. Block Level Transfer Model
  

Question 742 :
A file appears to the file server as an ordered sequence of records in

  1. Unstructured files
  2. Structured files
  3. Immutable files
  4. Mutable files
  

Question 743 :
A process is selected from the ______ queue by the ________ scheduler, to be executed.

  1. blocked, short term
  2. wait, long term
  3. ready, short term
  4. ready, long term
  

Question 744 :
_______of data is a major fault tolerance method in distributed system

  1. Replication
  2. recovery
  3. concurrency
  4. Consistency
  

Question 745 :
which of the following is not basic requirements of Mutual Exclusion Algorithms

  1. Safety property
  2. Liveness property
  3. Fairness
  4. System throughput
  

Question 746 :
Which of the following two operations are provided by the IPC f

  1. write - delete message
  2. delete - receive message
  3. send - delete message
  4. receive - send message
  

Question 747 :
Distributed syatem consists of set of resour

  1. cPrinter
  2. Processor
  3. CD
  4. Processes
  

Question 748 :
Recart-Agrawala Algorithm is

  1. Election Algorithm
  2. Clock synchronization Algorithm
  3. Mutual Exclusion Algorithm
  4. Event ordering
  

Question 749 :
When the event for which a thread is blocked occurs?

  1. thread moves to the ready queue
  2. thread remains blocked
  3. thread completes
  4. a new thread is provided
  

Question 750 :
Which of the following for Mutual exclusion can be provided by the

  1. mutex locks
  2. binary semaphores
  3. both mutex locks and binary semaphores
  4. none of the mentioned
  
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