Computer Distributed Computing (CDC) MCQ's




Question 361 :
__________ is computing form where heterogeneity is key advantage.

  1. Cluster computing
  2. High performance computing
  3. Grid computing
  4. Cluster - grid computing
  

Question 362 :
Single coordinator approach has the following disadvantages : i.Simple implementation, ii.Simple deadlock handling, iii.Bottleneck

  1. i
  2. ii
  3. ii and iii
  4. iii
  

Question 363 :
A monitor is a module and monitor which of the following can encapsulates

  1. shared data structures
  2. procedures that operate on shared data structure
  3. synchronization between concurrent procedure invocation
  4. all of the mentioned
  

Question 364 :
If an old process wants a resource held by a young process, the old one will wait happens in _______

  1. Wait-die
  2. Wound-wait
  3. Both
  4. None of the mentioned
  

Question 365 :
Which Consistency is used to guarantee that users of a network newsgroup see a posting of a reaction to an article only after they have seen the original article

  1. Read-your-writes
  2. Monotonic-writes
  3. Monotonic-Reads
  4. Writes-follow-reads
  

Question 366 :
In mutual exclusion, ‘no deadlock or starvation’is guaranteed by the property of ______.

  1. Serialization
  2. Liveness
  3. Safety
  4. Deadlock detection
  

Question 367 :
Which issue of distributed system should be perceived as the single entity by the users or the application programmers rather than the collection of autonomous system is cooperating

  1. Openness
  2. Scalability
  3. Security
  4. Transparency
  

Question 368 :
An object acting as a gateway for the client side.

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

Question 369 :
________ identifies the names of those enterprise-level networks around the world that are linked together via phone, satellite, or other communication systems

  1. Global Naming Service
  2. Directory Services
  3. CODA Files
  4. Andrew File System
  

Question 370 :
In X.500 Directory you can search for hundreds of thousands of people from a single place on the _______________.

  1. World Wide Web.
  2. at one place
  3. World directory
  4. Words largest file
  

Question 371 :
In the tree structured directories _____________

  1. the tree has the stem directory
  2. the tree has the leaf directory
  3. the tree has the root directory
  4. the tree has no any directory
  

Question 372 :
The sender-initiated policy is preferable at _______________ system loads. However, the receiver-initiated policy is preferable at _______________ system loads.

  1. Light to moderate, moderate
  2. Light to moderate, high
  3. Light to high, moderate
  4. Light to moderate, light
  

Question 373 :
If one thread opens a file with read privileges then ___________

  1. other threads in the another process can also read from that file
  2. other threads in the same process can also read from that file
  3. any other thread can not read from that file
  4. all of the mentioned
  

Question 374 :
What is global scheduling algorithms?

  1. priori knowledge of resources
  2. Dynamic in nature
  3. not scalable
  4. not stable
  

Question 375 :
The portion of the process scheduler in an operating system that dispatches processes is concerned with ____________

  1. assigning ready processes to CPU
  2. assigning ready processes to waiting queue
  3. assigning running processes to blocked queue
  4. assigning new processes to cpu
  

Question 376 :
What are characteristics of process 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. Acees is done like local resources
  

Question 377 :
________ consistency is that write operations by the same process are performed in the correct order everywhere.

  1. Weak
  2. Strict
  3. Eventual
  4. FIFO
  

Question 378 :
______ cover the case of dealing with arbitrary failures by process Q, yet these failures are benign: they cannot do any harm.

  1. Fail-stop failures
  2. Fail-noisy failures
  3. fail-silent failures
  4. Fail-safe failures
  

Question 379 :
Which algorithms are used to handle mutual exclusion in distributed systems?

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

Question 380 :
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 381 :
PRAM means _________________________________

  1. Process Random-Access Memory Consistency Model
  2. Pipelined Random-Access Memory Consistency Model
  3. Pipelined Readonly-Access Memory Consistency Model
  4. Pipelined Random-Access Matrix Consistency Model
  

Question 382 :
_________ 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 383 :
What is the disadvantage of the two level directory structure?

  1. it does not solve the name collision problem
  2. it solves the name collision problem
  3. it does not isolate users from one another
  4. it isolates users from one another
  

Question 384 :
___________ is act between name servers and their clients.

  1. Name machine
  2. Context
  3. Name agents
  4. Main servers
  

Question 385 :
In the distributed system, the goal of the task assignment approach is to assign the tasks of a process to the nodes. Consider there are two nodes n1 and n2 and four tasks {T1, T2, T3, T4,T5,T6}. Tasks T1, T2 are assigned to node n1 and tasks T3,T4, T5, T6 are assigned to node n2.Comunication cost is as given in table below. Considering serial task assignment, the communication incur will be T1, T2, T3, T4,T5,T6 T1-> 0, 6, 4, 0, 0, 12 T2-> 6, 0, 8, 12, 3, 0 T3-> 4, 8, 0, 0, 11, 0 T4=> 0, 12, 0, 0, 5, 0 T5-> 0, 3, 11, 5 , 0, 0 T6=> 12, 0, 0, 0, 0, 0

  1. 38
  2. 58
  3. 39
  4. 50
  

Question 386 :
In distributed file system, file name does not reveal the file’s

  1. file’s host name need to be changed
  2. file’s host name need to be changed
  3. file name need to be changed
  4. file name need not to be changed
  

Question 387 :
State which of the following holds true in Process Migration Statement 1: In non preemptive process migration,Process may be migrated during the course of its execution Statement 2: In preemptive process migration,Process may be migrated before it starts executing on its source node

  1. Statement 1 is correct but statement 2 is false
  2. Statement 1 is false but statement 2 is correct
  3. Both the statements are incorrect
  4. Both the statements are correct
  

Question 388 :
Computation of data is done in which component of SIMD

  1. Local Memory
  2. Front end Controllers
  3. Processing element
  4. Processor array
  

Question 389 :
A process can be ___________

  1. single threaded
  2. tripalthreaded
  3. single threaded and multithreaded
  4. doublethreaded
  

Question 390 :
Following is not replication model.

  1. master-slave model.
  2. client-server model
  3. peer-peer model
  4. head-tail model
  
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