Distributed Computing MCQ's




Question 691 :
When the process issues an I/O request __________

  1. It is placed in an I/O queue
  2. It is placed in a waiting queue
  3. It is placed in the ready queue
  4. It is placed in the Job queue
  

Question 692 :
________ primitive associates a local address with the newly-created socket.

  1. Bind
  2. Listen
  3. Send
  4. close
  

Question 693 :
The Ricart - Agrawala distributed mutual exclusion algorithm is:

  1. Less efficient and less fault tolerant than a centralized algorithm.
  2. More efficient and more fault tolerant than a centralized algorithm.
  3. More efficient but less fault tolerant than a centralized algorithm.
  4. Less efficient but more fault tolerant than a centralized algorithm.
  

Question 694 :
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 695 :
In Suzuki Kasami algorithm, __________ is guaranteed because there is only one token in the system and a site holds the token during the CS execution.

  1. Mutual Exclusion
  2. Performance
  3. Stability
  4. Scalability
  

Question 696 :
In the case of____________ changes to an open file are only locally visible.

  1. Mutable Files
  2. Immutable Files
  3. Atomic Transactions
  4. Session Semantics
  

Question 697 :
The automounter maintains a table of....................... with a reference to one or more NFS servers listed against each.

  1. remote procedure call
  2. mount protocol
  3. Pathnames
  4. Lookup
  

Question 698 :
What are the characteristics of a distributed file system?

  1. Its users, servers and storage devices are dispersed
  2. Service activity is not carried out across the network
  3. They have single centralized data repository
  4. There are multiple dependent storage devices
  

Question 699 :
Which of the following is not the major component of a distributed file system : ______________.

  1. Storage Service
  2. True file service
  3. Name service
  4. Authorization service
  

Question 700 :
Which of the given statements is false?

  1. Message Passing Interface(MPI) provides buffering service.
  2. Socket programming provides transient asynchronous communication.
  3. Message Passing Interface(MPI) is more advanced than socket programming
  4. Message Passing Interface(MPI) provides transient asynchronous communication.
  

Question 701 :
In the instruction ADD A, B, the answer gets stored in ___________

  1. B
  2. A
  3. Buffer
  4. C
  

Question 702 :
Two types of replication

  1. homogenous and hetrogenous
  2. parallel and distributed
  3. Active and passive
  4. simple and complex
  

Question 703 :
Process of suspending execution at source and resuming at destination is known as_________.

  1. Freezing
  2. Suspension
  3. Distribution
  4. Migration
  

Question 704 :
What are the characteristics of mutual exclusion using centralized approach ?

  1. One processor as coordinator which handles all requests
  2. It requires request,reply and release per critical section entry
  3. The method is free from starvation
  4. All of the mentioned
  

Question 705 :
Load estimation policy is to be considered in designing ______.

  1. Co-operative algorithm
  2. Load balancing algorithm
  3. Probabilistic algorithm
  4. Static scheduling algorithm
  

Question 706 :
When a file appear to the file server as an ordered sequence of records then mention file model to which it belongs.

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

Question 707 :
Which of the following is not a layer in architecture of grid computing?

  1. Collective layer
  2. Connectivity layer
  3. Remote reference layer
  4. Fabric layer
  

Question 708 :
Processes on the remote systems are identified by ___________

  1. host ID
  2. host name and identifier
  3. identifier
  4. process ID
  

Question 709 :
Which one is not a primitive of message passing primitive.

  1. MPI_RECV ()
  2. MPI_SEND ()
  3. WRITE ()
  4. MPI_BSEND ()
  

Question 710 :
The following is the desirable feature of global scheduling algorithm

  1. Dynamic in nature
  2. Static by nature
  3. Cannot assure about that actual nature
  4. Uniform nature
  

Question 711 :
Which of the following is/are the advantages of load balancing.i) It improves the system performanceii) Response time beomes longeriii) small jobs do not suffer from long starvation

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

Question 712 :
Which communication model uses the queuing model?

  1. RPC
  2. RMIu
  3. MOM
  4. MPI
  

Question 713 :
Remote login is a best example of ____.

  1. Distributed OS
  2. Disk OS
  3. Network OS
  4. MAC OS
  

Question 714 :
Which of the following are the types of Path names?

  1. absolute - relative
  2. local - global
  3. global - relative
  4. relative - local
  

Question 715 :
A type of middleware that allows for between the built-in applications and the real-time OS?

  1. Firmware
  2. Embedded Middleware
  3. Database middleware
  4. Portals
  

Question 716 :
This is not a Common mode of communication in Distributed system –

  1. RPC
  2. RMI
  3. Message passing
  4. Shared memory
  

Question 717 :
Which cache location gives Maximum performance gain for file systems

  1. Server’s main memory
  2. Client’s main memory
  3. Server’s Disk
  4. Client’s disk
  

Question 718 :
Which one is coordinator selection algorithm?

  1. Ring Algorithm
  2. Lamport's Algorithm
  3. NTP
  4. Berkeley Algorithm
  

Question 719 :
The following statement 'Please give me load' is an example of which policy?

  1. Receiver initiated
  2. Sender Initiated
  3. Load estimation
  4. Load predication
  

Question 720 :
X.500 Directory is also called

  1. global Yellow Pages directory
  2. global Blue Pages directory
  3. global White Pages directory
  4. global Black Pages directory
  
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