Distributed Computing MCQ's




Question 721 :
One process is elected as coordinator, which selects another process to perform the operation.

  1. Hierarchical Group
  2. flat group
  3. IETF group
  4. Collected process Group
  

Question 722 :
Optimistic logging protocols need to keep track of

  1. Independencies
  2. Checking points
  3. Dependencies
  4. Erroneous state
  

Question 723 :
The capability of a system to adapt the increased service load is called ___________

  1. tolerance
  2. capacity
  3. scalability
  4. heterogeneity
  

Question 724 :
Utilization rate of resources in an execution model is known to be its -

  1. Adaptation
  2. Efficiency
  3. Flexibility
  4. Dependability
  

Question 725 :
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. none of the mentioned
  

Question 726 :
Which statement is false about Scheduling?

  1. It reduces the waiting time of each job
  2. It avoids deadlock
  3. It makes minimum utilization of resources.
  4. It reduces response time
  

Question 727 :
What is full replication?

  1. A copy of whole dataset is stored at every site.
  2. A copy of whole dataset is stored at limited sites.
  3. A copy of fully accessed dataset is stored at most visited site.
  4. A copy of whole dataset is copied.
  

Question 728 :
What is Server Load Balancing (SLB)?

  1. SLB distributes servers to a group of clients and ensures that clients are not sent to failed servers.
  2. SLB distributes clients to a group of servers and ensures that clients are not sent to failed servers.
  3. SLB distributes servers to a group of clients and ensures that tasks are not sent to failed servers.
  4. SLB distributes servers to a group of clients and ensures that tasks are sent to failed servers.
  

Question 729 :
A group server is responsible for_______ - ________ groups

  1. clean and deduct
  2. program and make funtional
  3. create and destroy
  4. advance and fail
  

Question 730 :
Which of the following is not a benefit of open distributed system (ODS)

  1. Extensibility
  2. Interoperability
  3. Securability
  4. Portability
  

Question 731 :
Which algorithms are used for selecting a process to act as coordinator or sequencer? I. Centralized algorithm II. Election algorithm III. Ring algorithm IV. Chandy-Misra-Haas algorithm

  1. II and IV
  2. II, III, IV
  3. II and III
  4. II
  

Question 732 :
Migrating some resources, Suspending the execution, migrating the process and then resuming is known as

  1. post Freezing
  2. Pre Transferring
  3. On demand Exchange
  4. Code migration
  

Question 733 :
which Layer is not part of Grid Computing

  1. Fabric Layer
  2. Data link Layer
  3. Collective Layer
  4. Resource Layer
  

Question 734 :
In Casual consistency model all processes shared accesses in

  1. random order
  2. same order
  3. sequential order
  4. specific order
  

Question 735 :
_____ allows multiple computers with diverse hardware, operating system - network to solve complex problem

  1. Cluster computing
  2. Grid computing
  3. Centralized system
  4. Cluster and gri computing
  

Question 736 :
A receiver generally has its own local buffer where messages can be stored when the receiver is not executing in____

  1. Persistent synchronous communication
  2. Persistent asynchronous communication
  3. Transient asynchronous communication
  4. Transient synchronous communication
  

Question 737 :
Which is the following property of transaction ensures that once transaction commits, the changes are permanent

  1. Atomic
  2. Consistent
  3. Isolated
  4. Durable
  

Question 738 :
A distributed database is which of the following?

  1. A single logical database that is spread to multiple locations and is interconnected by a network
  2. A loose collection of file that is spread to multiple locations and is interconnected by a network
  3. A single logical database that is limited to one location.
  4. A loose collection of file that is limited to one location.
  

Question 739 :
The NFS client and server modules communicate using ...................................

  1. remote procedure call
  2. Function
  3. Interrupt
  4. RMI
  

Question 740 :
In RPC system, which of the following failure may not occur

  1. The client cannot locate server
  2. The client crashes after sending a request
  3. The server crashs after receiving a request
  4. The request message from the client to the server is obtained
  

Question 741 :
In distributed file system, _______ is mapping between logical and physical objects.

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

Question 742 :
Hiding the complicacy of the system from user in distributed environment is known as _____.

  1. Heterogeneity
  2. Security
  3. Flexibility
  4. Transparency
  

Question 743 :
A process that is based on IPC mechanism which executes on different systems and can communicate with other processes using message based communication, is called

  1. Local Procedure Call
  2. Inter Process Communication
  3. Remote procedure call
  4. Remote machine invocation
  

Question 744 :
The type of communication where a message is stored by the communication system only as long as the sending and receiving application are executing.

  1. Transient communication
  2. Persistent communication
  3. Synchronous communication
  4. Asynchronous communication
  

Question 745 :
Why is Lamports algorithm said to be fair?

  1. Time is determined by logical clocks
  2. Time is synchronized
  3. Timestamp ordering is deployed
  4. A request for Critical Section are executed in the order of their timestamps and time is determined by logical clocks.
  

Question 746 :
A single NFS write procedure ____________

  1. can be atomic
  2. is atomic
  3. is non atomic
  4. is automatic
  

Question 747 :
Berkeley Algorithm is ________

  1. Passive Time Server Algorithm
  2. Active Time Server Algorithm
  3. both (a) and (b)
  4. None of the mentioned
  

Question 748 :
_____________ enables the migration of the virtual image from one physical machine to another.

  1. Visualization
  2. Virtualization
  3. Migration
  4. Virtual transfer
  

Question 749 :
In GFS, Chunk replicas are created for three reasons: ___________________

  1. chunk creation, re-replication, and rebalancing
  2. chunk deletion, re-replication, and rebalancing
  3. chunk creation, re-replication, and resharing
  4. chunk creation, chunk deletion, and rebalancing
  

Question 750 :
DNS stands for?

  1. Direct Network System
  2. Direct Name System
  3. Domain Name System
  4. Domain Network System
  
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