Distributed Computing MCQ's




Question 661 :
If Task size is known,then the mapping is called

  1. Static Mapping
  2. Dynamic Mapping
  3. Array Mapping
  4. Processor Mapping
  

Question 662 :
An object acting as a gateway for the client side.

  1. skeleton
  2. stub
  3. remote
  4. server
  

Question 663 :
Other organizations are able to run their ______________on the Google platform.

  1. own web applications
  2. own services
  3. own queries
  4. own network programs
  

Question 664 :
In distributed systems, ______ offers services according to standard rules that describe the syntax and semantics of those services.

  1. openness
  2. scalability
  3. Reliability
  4. fault tolerance
  

Question 665 :
A semaphore is a shared integer variable that can not

  1. drop below zero
  2. be more than zero
  3. drop below one
  4. that cannot be more than one
  

Question 666 :
If timestamps of two events are same, then the events are ____

  1. concurrent
  2. non-concurrent
  3. monotonic
  4. non-monotonic
  

Question 667 :
What is interprocess communication?

  1. TRUE
  2. communication between two process
  3. communication within the process
  4. communication between two threads of same process
  

Question 668 :
Hide differences in data representation and how a resource is accessed' which type of transparency is this?

  1. Relocation
  2. Failure
  3. Concurrency
  4. Access
  

Question 669 :
A process is _________________

  1. program in main memory
  2. Program in cache memory
  3. program in secondary storage
  4. program in execution
  

Question 670 :
Which of the following is NOT type of transparency

  1. Access transparency
  2. Location transparency
  3. Replication transparency
  4. Clock Synchronization Transparency
  

Question 671 :
In weak consistency____-

  1. All read or write operation on data items are allowed to be performed until all previous operations to synchronization variables have been performed
  2. No read or write operation on data items are allowed to be performed until all previous operations to synchronization variables have been performed
  3. One read or write operation on data items are allowed to be performed until all previous operations to synchronization variables have been performed
  4. Two read or write operation on data items are allowed to be performed until all previous operations to synchronization variables have been performed
  

Question 672 :
Which of the following is disadvantage of NFS

  1. Easy to share if files are available on multiple machines
  2. Network slower than local disk
  3. Easier to administer server than client
  4. Access way more data that fits on your local disk
  

Question 673 :
NOS stands for

  1. Network Operating System
  2. New Operating System
  3. Netmask operating system
  4. Name server Operating system
  

Question 674 :
When resources have multiple instances ________ is used for deadlock Avoidance.

  1. Bankers algorithm
  2. Resource Allocation Graph
  3. Semaphores
  4. All of these
  

Question 675 :
Replication should be used when which of the following exist?

  1. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables.
  2. When using many nodes with different operating systems and DBMSs and database designs.
  3. The application's data can be somewhat out-of-date.
  4. When using some nodes with selected operating system.
  

Question 676 :
In distributed systems, a logical clock is associated with _____________

  1. each instruction
  2. each process
  3. each register
  4. none of the mentioned
  

Question 677 :
Which file model supports consistent sharing which results in support of easy file caching and replication

  1. Structured File Model
  2. Unstructured File Model
  3. Mutable File Model
  4. Immutable File Model
  

Question 678 :
Suppose that two processes detect the demise of the coordinator simultaneously and both decide to hold an election using the bully algorithm. What happens?

  1. Each of the higher-numbered processes will get two ELECTION messages, but will ignore the first one. The election will proceed as usual
  2. Each of the lower-numbered processes will get two ELECTION messages, but will ignore the first one. The election will proceed as usual
  3. Each of the lower-numbered processes will get two ELECTION messages, but will ignore the second one. The election will proceed as usual
  4. Each of the higher-numbered processes will get two ELECTION messages, but will ignore the second one. The election will proceed as usual
  

Question 679 :
Which set of events is concurrent (all events are concurrent with each other)?

  1. (3, 1, 5, 7), (3, 2, 6, 7), (2, 1, 6, 8)
  2. (2, 1, 3, 4), (2, 2, 3, 3), (3, 3, 2, 5)
  3. (1, 2, 3, 4), (2, 3, 4, 5), (3, 4, 5, 6)
  4. (1, 5, 6, 7), (1, 4, 5, 7), (1, 3, 2, 2)
  

Question 680 :
In distributed file system, file name does not reveal the file’s

  1. file’s host name need to be changed
  2. file’s host name need to be changed
  3. file name need to be changed
  4. file name need not to be changed
  

Question 681 :
This is not feature of cooperative algorithm

  1. complex
  2. larger overhead
  3. worst stability
  4. better stability
  

Question 682 :
What does MBR stand for?

  1. Main Buffer Register
  2. Memory Buffer Routine
  3. Main Buffer Routine
  4. Memory Buffer Register
  

Question 683 :
_________ is an object acting as a gateway for the client side.

  1. skeleton
  2. stub
  3. remote
  4. server
  

Question 684 :
Which of the following is not comes under Dependability

  1. Availability
  2. Reliability
  3. Maintainability
  4. Redundancy
  

Question 685 :
Which is not the way to organize servers?

  1. Iterative server
  2. Concurrent server
  3. Active server
  4. Multi-threaded serve
  

Question 686 :
A relative name defines a path from the _________ context to the specified object.

  1. root
  2. current
  3. absolute
  4. relative
  

Question 687 :
Which of the following is not commonly used semantics for ordered delivery of multicast messages are:

  1. Absolute Ordering
  2. Consistent Ordering
  3. Casual
  4. Non- Casual
  

Question 688 :
Amazon SQS is an example of _______.

  1. RPC
  2. RMI
  3. Group communication
  4. Message Queuing System
  

Question 689 :
The process which blocks pipeline stage from accepting and processing new data is called

  1. Pipeline pre-processing
  2. Pipeline Flush
  3. Pipeline Interlock
  4. Pipeline lag
  

Question 690 :
Which of the following is not a distributed computing model?

  1. Processor-pool model
  2. Workstation server model
  3. Failure model
  4. peer-to-peer
  
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