Computer Distributed Computing (CDC) MCQ's




Question 91 :
The ____________ is used to keep track of the oscillations of the quartz crystal.

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

Question 92 :
The basic idea of RMI is to

  1. Call an method on remote machine while hiding message passing to programmer.
  2. Call a method on remote machine while not hiding message passing to programmer.
  3. Call a method on the same machine while hiding message passing to programmer.
  4. Call a method on the same machine.
  

Question 93 :
In global google system offering application-level software over the Internet as

  1. web application
  2. user application
  3. link application
  4. system application
  

Question 94 :
What are the characteristics of computation migration?

  1. transfer data by entire file or immediate portion required
  2. transfer the computation rather than the data
  3. execute an entire process or parts of it at different sites
  4. execute an entire process or parts of it at same site
  

Question 95 :
_______socket primitive attach local address to the socket

  1. Accept
  2. Bind
  3. Connect
  4. Listen
  

Question 96 :
Time interval from a request send to its CR execution completed is known as______

  1. Synchronization delay
  2. System throughput
  3. Message complexity
  4. Response time
  

Question 97 :
A distributed system is a collection of _______________ computers that appears to its users as a single coherent system.

  1. Independent
  2. Interconnected
  3. Interrelated
  4. Shared
  

Question 98 :
Advantage of Data-caching model over the Remote service model

  1. Reduces network traffic
  2. Contention for the file servers
  3. Increased performance
  4. Contention for Network
  

Question 99 :
Which of the following process can be affected by other processes during execution in the system?

  1. init process
  2. child process
  3. parent process
  4. cooperating process
  

Question 100 :
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 101 :
Network File System writes data_____

  1. Index wise
  2. Automatic
  3. Synchronously
  4. Asynchronously
  

Question 102 :
The Bankers algorithm is used ______

  1. to prevent deadlock
  2. to rectify deadlock
  3. to detect deadlock
  4. to solve deadlock
  

Question 103 :
Election algorithms assumes that ___________ in distributed system

  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. Based on IP address
  

Question 104 :
Writes done by a single process are seen by all other processes in the order in which they were issued, but writes from different processes may be seen in a different order by different processes is the necessary condition in ______

  1. Casual consistency
  2. FIFO consistency
  3. LRU consistency
  4. Optimal consistency
  

Question 105 :
In which technique of cache updation -Files are modified and in parallel cache memory is also updated ?

  1. Write through
  2. Read any write all
  3. Write back
  4. Quorum based protocol
  

Question 106 :
The Ricart–Agrawala algorithm assumes that the communication channels are ___

  1. LIFO
  2. busy
  3. FIFO
  4. blocked
  

Question 107 :
An identifier that can be used throughout a distributed system to refer to a particular unique remote object is

  1. Remote object procedure
  2. Remote object reference
  3. Remote object syntax
  4. Remote object index
  

Question 108 :
The current directory contains, most of the files that are _____________

  1. of current interest to the user
  2. stored currently in the system
  3. not used in the system
  4. not of current interest to the system
  

Question 109 :
Which mutual exclusion algorithm works when the membership of the group is unknown?

  1. Centralized.
  2. Ricart-Agrawala.
  3. Lamport.
  4. Token Ring.
  

Question 110 :
In HDFS file System, A ________ serves as the master and there is only one NameNode per cluster

  1. Data Node
  2. NameNode
  3. Replication
  4. Data block
  

Question 111 :
Which of the following process can be affected by other processes during execution in the system?

  1. init process
  2. child process
  3. parent process
  4. cooperating process
  

Question 112 :
In _______ assignment of job is done at run

  1. Dynamic load balancing algorithm
  2. Static load balancing algorithm
  3. Symmetric load balancing algorithm
  4. Asymmetric load balancing algorithm
  

Question 113 :
Distributed system have significant characteristics of

  1. 2 types
  2. 3 types
  3. 4 types
  4. 5 types
  

Question 114 :
Which are the two complementary deadlock-prevention schemes using time stamps ?

  1. The wait-die - wound-wait scheme
  2. The wait-n-watch scheme
  3. The wound-wait scheme
  4. The wait-wound - wound-wait scheme
  

Question 115 :
What is true about No a priori knowledge about the processes ?

  1. Process assignment decisions should be dynamic i.e based on the current load of the system and not on some static policy
  2. Heuristic methods requiring less computational efforts
  3. Algorithms provide near optimal system performance with a minimum overhead
  4. Scheduling algorithms that operate based on the information about the chracteristics and resource requirements of the processes
  

Question 116 :
Processes are migrated to fulfill their ______requirements

  1. resource
  2. object
  3. thread
  4. component
  

Question 117 :
Which one of the following is not true about GFS?

  1. Cluster Based Architecture
  2. Client Caching
  3. End users do not interact
  4. Server Replication
  

Question 118 :
In the Singhal's algorithm, each request is assigned _____ which determines its priority

  1. a globally unique timestamp
  2. an interrupt
  3. a counter
  4. a quartz crystal
  

Question 119 :
An email service is a typical example of messaging service, where a sender sends an email message to recipient.

  1. It never waits for a reply from the recipient
  2. it always waits for a reply from the reciepient before sending next
  3. it will always send the reply email message to the sender.
  4. it is a type of synchronous communication
  

Question 120 :
Distributed file system supports i)Remote Information Sharting ii)User Mobility iii)Unavailability iv)Diskless Workstations

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