Distributed Computing MCQ's




Question 781 :
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 782 :
which of the service offered by middleware is used to provide security to the various shared resources provided by the stystem?

  1. Persistance service
  2. Querying service
  3. Naming service
  4. Security service
  

Question 783 :
An object acting as a gateway for the client side.

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

Question 784 :
_________ provides programmers a familiar programming model by extending the local procedure call to a distributed environment.

  1. Distributed environment
  2. Permanent procedure call
  3. Process and file
  4. Remote procedure call
  

Question 785 :
Which algorithms are used to handle mutual exclusion in distributed systems?

  1. Centralized
  2. Distributed
  3. Token ring
  4. All of the mentioned
  

Question 786 :
In mutual exclusion, processes requests to enter in

  1. Network
  2. Critical region
  3. Storage space
  4. Main memeory
  

Question 787 :
The ___________ can be deployed such that it services all or a portion of your Qnet nodes. And you can have redundant GNS servers.

  1. GNS server
  2. IS server
  3. DNS server
  4. system server
  

Question 788 :
What will happen when a process terminates?

  1. It is removed from all queues
  2. It is removed from all, but the job queue
  3. Its process control block is de-allocated
  4. Its process control block is never de-allocated
  

Question 789 :
DUAs include whois, finger, and programs that offer a_____________.

  1. graphical user interface.
  2. system interface.
  3. Local user interface.
  4. global user interface.
  

Question 790 :
What are the two steps of a process execution?

  1. I/O - OS Burst
  2. CPU - I/O Burst
  3. Memory - I/O Burst
  4. OS - Memory Burst
  

Question 791 :
____________ files are read only.

  1. Mutable
  2. Immutable
  3. Setup
  4. Recursive
  

Question 792 :
The local operating system on the server machine passes the incoming packets to the ___________

  1. Server stub
  2. Client stub
  3. Client operating system
  4. Client process
  

Question 793 :
Satefull Service in DFS is i)It maintains what files are opened by a client; connection identifiers; server caches ii)Memory must be reclaimed when client closes file or when client dies iii)The server can maintain information on behalf of the client, but it's not required.

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

Question 794 :
The hardware of DS has two types

  1. multiprocessor system,multicomputer system
  2. multiprocessor system,unicomputer system
  3. uniprocessor system,multicomputer system
  4. uniprocessor system,unicomputer system
  

Question 795 :
Which type of service is not provided by Distributed File System

  1. Storage Service
  2. True File Service
  3. Name Service
  4. False File Service
  

Question 796 :
A global system of Interconnected Computer networks is called as

  1. Ethernet
  2. Intranet
  3. Internet
  4. Ultranet
  

Question 797 :
The process initiated by a method invocation, which may result in further invocations on methods in other objects is called

  1. A creation
  2. An action
  3. A reaction
  4. An invitation
  

Question 798 :
___algorithm for coordinator election assumes that no process can fail during the election procedure until the new coordinator has been selected.

  1. bully algorithm
  2. Ring algorithm
  3. Lamport algorithm
  4. Suzuki Kasami algorithm
  

Question 799 :
A ____________is a quartz crystal that oscillates at a well-defined frequency.

  1. Counter register
  2. Quartz crystal
  3. Constant register
  4. None of the mentioned
  

Question 800 :
Various Components of distributed systems are__________.

  1. client
  2. server
  3. server network links
  4. client,server, network links
  

Question 801 :
________________is token based algorithm

  1. Richart Agrawala
  2. Maekawa
  3. Lamport’s
  4. Raymond Tree
  

Question 802 :
A client calls a remote procedure, the client will block until a reply is returned called as

  1. Conventional procedure calls
  2. Interprocess communication
  3. Remote Procedure Call
  4. Message Binding
  

Question 803 :
Every remote object has a remote interface that specifies which of its

  1. Methods can be invoked remotely
  2. Parameters can be used remotely
  3. Methods can be invoked locally
  4. Parameters can be invoked locally
  

Question 804 :
__________replicas are used only to improve access time on data

  1. Client initiated
  2. Server initiated
  3. Permanent
  4. Dynamic
  

Question 805 :
GNS allows you to locate services via an _________ wherever the service is located, whether on the local system or on a remote node.

  1. user name
  2. arbitrary name
  3. system name
  4. address name
  

Question 806 :
The dynamic replication algorithm takes into account

  1. to reduce load on server
  2. files on server can be migrated anywhere
  3. schedule process migration
  4. resource sharing
  

Question 807 :
Which of the following properties hold true for quorums in a cotorie

  1. Intersection property and Union property
  2. Intersection property and Minimality property
  3. Minimality property and Union property
  4. Intersection property and Monotonicity property
  

Question 808 :
what is mean by MOS?

  1. Multiprocessor operating system
  2. Multicomputer operating system
  3. Middleware operating system
  4. IPC
  

Question 809 :
_____is unit of allocation and _____is unit of execution

  1. Process,Thread
  2. Thread,Process
  3. Procedure,process
  4. Method,Thread
  

Question 810 :
Remote write protocol supports all write operations

  1. Need to be forwarded to local server
  2. Need to be forwarded to multiple servers.
  3. Need to be forwarded to any server
  4. Need to be forwarded to a fixed single server.
  
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