Distributed Computing MCQ's




Question 931 :
To improve performance ____ approach is used

  1. Task assignment
  2. Load Estimation
  3. Load balancing
  4. Load sharing
  

Question 932 :
Network file system(NFS) is developed by?

  1. Sun Microsystem
  2. oracle
  3. apple
  4. honeywell
  

Question 933 :
The header usually consists of the following elements in IPC I. Sequence number II. Structural information III. Address IV. File mode(Read/ Write)

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

Question 934 :
With ................ only one process can execute at a time; meanwhile all other process are waiting for the processer. With .............. more than one process can be running simultaneously each on a different processer.

  1. Multiprocessing, Multiprogramming
  2. Multiprogramming, Uniprocessing
  3. CMultiprogramming, Multiprocessing
  4. Uniprogramming, Multiprocessing
  

Question 935 :
What is common problem found in distributed system ?

  1. Process Synchronization
  2. Communication synchronization
  3. Deadlock problem
  4. Power failure
  

Question 936 :
What is not a major reason for building distributed systems?

  1. Resource sharing
  2. Computation speedup
  3. Reliability
  4. Simplicity
  

Question 937 :
Which of the following is not a classification of group communication?

  1. One to Many
  2. Many to one
  3. Many to Many
  4. Many to All
  

Question 938 :
System that provides access to the resources irrespective of their location is called ______

  1. Relocation Transparency
  2. Location Transparency
  3. Migration transparency
  4. Access transparency
  

Question 939 :
In mutual exclusion algorithm, number of messages per Critical Section invocation should be_________.

  1. minimized
  2. Maximized
  3. Remain same
  4. monotonic
  

Question 940 :
What is the mounting of file system?

  1. crating of a filesystem
  2. deleting a filesystem
  3. attaching portion of the file system into a directory structure
  4. removing the portion of the file system into a directory structure
  

Question 941 :
Which of the following are models of middleware that are belong to distributed object technology.

  1. RPC - RMI
  2. RPC - CORBA
  3. MOM - RMI
  4. RMI - CORBA
  

Question 942 :
_______provide gurantee that all members in a process group receive a message

  1. Replication
  2. Reliable group communication
  3. Passive Communiccation
  4. Active communication
  

Question 943 :
Lamport’s algorithm is used for __________synchronization

  1. Deadlock
  2. Physical Clock
  3. Logical Clock
  4. Election process
  

Question 944 :
In reliable multicasting...

  1. There is requirement that all group members receive messages in the same order.
  2. No requirement that all group members receive messages in the same order.
  3. No requirement that all group members receive messages in the random order.
  4. No requirement that all group members receive messages in parallel.
  

Question 945 :
What are the problems of clock synchronization in distributed operating systems ? I. Processses make decision based only on local information II. The relevent information is scattered among multiple machines III. A single point of failure in the system should be avoided IV. No common clock or other precise global time source exists

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

Question 946 :
The ________ of distributed system is determined primarily by the degree to which new resource- sharing services can be added and be made available for use by a variety of client programs

  1. Openness
  2. Resource Sharing
  3. Transparency
  4. Scalability
  

Question 947 :
X.500 is a series of ________________ covering electronic directory services.

  1. system standards
  2. networking standards
  3. computer networking standards
  4. operating system standards
  

Question 948 :
This is not the mechanism of recovery in distributed system.

  1. Rollback Recovery
  2. Checkpoint
  3. Message Logging
  4. Multicasting
  

Question 949 :
Process synchronization can be done on which of the following levels

  1. hardware
  2. software
  3. both hardware and software
  4. one of the mentioned
  

Question 950 :
E-mail system is an example of

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

Question 951 :
Which one of the following is not a distributed file system?

  1. Andrew File System
  2. Network File System
  3. Hadoop Distributed File System
  4. Fast File System
  

Question 952 :
In Singal's algorithm, the manner In which cardinality decreases, leads to a ___ pattern, topologically.

  1. mesh
  2. ring
  3. stepwise
  4. staircase
  

Question 953 :
Which among below is not Distributed system models are

  1. Architectural model
  2. Interaction model
  3. Fault model
  4. Performance model
  

Question 954 :
Advantage in ___ model is that some of its processors can work as servers, if the load has increased or if more users are logged in and demand new services.

  1. Workstation model
  2. Workstation -server model
  3. Processor-pool model
  4. Client-server model
  

Question 955 :
The link between two processes P and Q to send and receive me

  1. communication link
  2. message-passing link
  3. synchronization link
  4. share data
  

Question 956 :
Consider the following set of processes, the length of the CPU burst time given in milliseconds. P1 - 6, p2 - 8, p3 -7, p4 - 3. Assuming the above process being scheduled with the SJF scheduling algorithm.

  1. The waiting time for process P1 is 3ms
  2. The waiting time for process P1 is 0ms
  3. The waiting time for process P1 is 16ms
  4. The waiting time for process P1 is 9ms
  

Question 957 :
Grid computing is type of -

  1. Distributed embedded system
  2. Distributed information system
  3. Distributed Computing system
  4. Cluster computing
  

Question 958 :
What are the characteristics of fully distributed approach ? I. When responses are received from all processes, then process can enter its Critical Section II. When process exits its critical section, the process sends reply messages to all its deferred requests. III. It requires request, reply and release per critical section entry IV. One processor as coordinator which handles all requests

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

Question 959 :
The Bankers algorithm is used ______

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

Question 960 :
if ts OP1(x) < ts OP2(y), then operation OP1(x) should Precede OP(y) in this sequence belongs to ____

  1. Strict consistency
  2. Linearizability consistency
  3. Sequential consistency
  4. parallel consistency
  
Pages