Distributed Computing MCQ's




Question 361 :
With the launch of Google App Engine, Google went beyond _____________.

  1. software as a service
  2. service provider
  3. quality as a service
  4. data as a service
  

Question 362 :
For execution on process need

  1. Throughput
  2. Timer
  3. Resources
  4. Access Time
  

Question 363 :
A semaphore is a shared integer variable that can not

  1. drop below zero
  2. be more than zero
  3. drop below one
  4. that cannot be more than one
  

Question 364 :
What are the characteristics of tightly coupled system ? i) Different clockii) Use communication linksiii) Same clockiv) Distributed systems

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

Question 365 :
A type of the fault which occurs, vanishes, reappears; but follows no real pattern

  1. Transient Fault
  2. Intermittent Fault
  3. Permanent Fault
  4. Temporary fault
  

Question 366 :
Google Distributed System is

  1. arbitrary system
  2. search engine is now a major player in cloud computing.
  3. GNS server
  4. computer networking standards
  

Question 367 :
in NFS which funtion is used for creating new file?

  1. open()
  2. create()
  3. develope()
  4. null()
  

Question 368 :
What are the characteristics of data 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 369 :
An external time source that is often used as a reference for synchronizing computer clocks with real time is the __________

  1. Universal Centralized Time
  2. Unique Coordinated Time
  3. Unique Centralized Time
  4. Universal Coordinated Time
  

Question 370 :
Following is not replication model.

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

Question 371 :
In consistent ordering when recieving the message each member calculate its proposed sequence number by using the function____________

  1. max(Fmax, Pmax) + I + i/N
  2. min(Fmax, Pmax) + I + i/N
  3. min(Fmin, Pmax) + I + i/N
  4. max(Fmin, Pmin) + I + i/N
  

Question 372 :
File caching is done _____________.

  1. To made file available
  2. To make faster access
  3. For transparent access
  4. For Mobile access
  

Question 373 :
As per lamports clock synchronisation algorithm, If timestamps of two events are same, then the events are ____________

  1. concurrent
  2. non concurrent
  3. monotonic
  4. non monotonic
  

Question 374 :
RPC allows a computer program to cause a subroutine to execute in _______.

  1. its own address space
  2. another address space
  3. both its own address space and another address space
  4. applications address space
  

Question 375 :
The ______-is the capability to dynamically change the bindings between code fragments and the location where they are executed

  1. code mobility
  2. process mobility
  3. Thread mobility
  4. object mobility
  

Question 376 :
What are characteristics of processor in distributed system ?

  1. They vary in size and function
  2. They are same in size and function
  3. They are manufactured with single purpose
  4. They are real-time devices
  

Question 377 :
Which of the following is a feature of global scheduling algorithm?

  1. scalability
  2. flexibility
  3. transitivity
  4. reliability
  

Question 378 :
In case of failure, a new transaction coordinator can be elected by _____

  1. Cristian's Algorithm
  2. Bully algorithm
  3. Both bully and Cristian's algorithm
  4. Lamport Algorithm
  

Question 379 :
In _____ distributed system the client and server both should be actively participated in the communication process

  1. Parvasive
  2. Asynchronous
  3. Synchronous
  4. Middleware
  

Question 380 :
Which is not an examples of state information ?

  1. Mounting information
  2. Description of HDD space
  3. Session keys
  4. Lock status
  

Question 381 :
Mapping of file is managed by ____________

  1. file metadata
  2. page table
  3. virtual memory
  4. file system
  

Question 382 :
In HDFS file System, ________ NameNode is used when the Primary NameNode goes down.

  1. Rack
  2. Data
  3. Secondary
  4. primary
  

Question 383 :
What are the parts of global unique identifier ?

  1. Local unique time stamp
  2. Remote time stamp
  3. Clock number
  4. sequence number
  

Question 384 :
Time interval from a request send to its critical region execution completed is called ________.

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

Question 385 :
What is RMI ?

  1. Remote Message Invocation
  2. Remote Method Invocation
  3. Remote Method Information
  4. Remote Message Initialization
  

Question 386 :
The Electronic mail system is a -

  1. Types of message Passing
  2. Types of communication
  3. Types of Internet
  4. Part of RPC
  

Question 387 :
Channel omission failure is

  1. loss of messages occurs between the sending process and the outgoing message buffer.
  2. loss of messages occurs between the incoming message buffer and the receiving process.
  3. loss of messages occurs between the incoming buffer and the outgoing buffer
  4. loss of messages occurs between the incoming buffer and the system.
  

Question 388 :
The ____accesses to synchronization variables associated with a data store are sequentially consistent

  1. Weak Consistency
  2. Casual consistency
  3. FIFO consistency
  4. Optimal consistency
  

Question 389 :
The__________ operation looks for a single part of a pathname in a given directory and returns the corresponding file handle and file attributes.

  1. svmlink
  2. rmdir
  3. Readlink
  4. Lookup
  

Question 390 :
RMI stands for?

  1. Remote Mail Invocation
  2. Remote Message Invocation
  3. Remaining Method Invocation
  4. Remote Method Invocation
  
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