Distributed Computing MCQ's




Question 271 :
Which of the following algorithm is Non- Token Based Algorithm for Mutual Exclusion

  1. Singhal‘s Heurastic Algorithm
  2. Suzuki-Kasami‘s Broadcast Algorithms
  3. Maekawa‘s Algorithm
  4. Raymond‘s Tree based Algorithm
  

Question 272 :
In the token passing approach of distributed systems, processes are organized in a ring structure

  1. Logically
  2. Physically
  3. Both logically and physically
  4. No specific to any structure
  

Question 273 :
Replication should be used when which of the following exist?

  1. When transmission speeds and capacity in a network prohibit frequent refreshing of large tables.
  2. When using many nodes with different operating systems and DBMSs and database designs.
  3. The application's data can be somewhat out-of-date.
  4. When using some nodes with selected operating system.
  

Question 274 :
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 275 :
In a multi-processor configuration two coprocessors are connected to host 8086 processor. The instruction sets of the two coprocessors

  1. must be same
  2. may overlap
  3. must be disjoint
  4. must be the same as that of host
  

Question 276 :
Registration of a server makes it possible for a client to locate the server and

  1. Bind to it
  2. Listen to it
  3. Refer to it
  4. Store to it
  

Question 277 :
Which address is used to identify a process on a host by the transport layer?

  1. physical address
  2. logical address
  3. port address
  4. specific address
  

Question 278 :
Which of the following is not an example of stream data

  1. Video
  2. Audio
  3. large data files
  4. text
  

Question 279 :
Hide where a resource is located which type of transparency is this?

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

Question 280 :
A remote object is ______ of a class that implements a remote interface.

  1. function
  2. call
  3. method
  4. instance
  

Question 281 :
_____ is defined as that feeling something when it is not actually present

  1. method
  2. Thread
  3. virtualization
  4. client server
  

Question 282 :
Hide that a resource may be moved to another location while in use

  1. Relocation transparency
  2. migration transparency
  3. location transparency
  4. Replication transparency
  

Question 283 :
In a distributed system, information is exchanged through __________.

  1. Memory sharing
  2. Message passing
  3. Email sending
  4. Network sharing
  

Question 284 :
____________ Files are the files which are read only.

  1. . Mutable
  2. Immutable
  3. Setup
  4. Recursive
  

Question 285 :
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 286 :
In which algorithm, One process is elected as the coordinator.

  1. Distributed mutual exclusion algorithm
  2. Centralized mutual exclusion algorithm
  3. Vector Algorithm
  4. Lamport algorithm
  

Question 287 :
Following is Possible diffeerent RPC server semantics.

  1. The server guarantees it will secure communication.
  2. The server guarantees it will distribute workload
  3. The server guarantees it will halt communication.
  4. The server guarantees it will carry out an oper-ation at most once.
  

Question 288 :
Which is not an examples of state information ?

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

Question 289 :
A layer which is the binary data protocol layer.

  1. stub layer
  2. skeleton layer
  3. remote layer
  4. transport protocol
  

Question 290 :
RPC stands for

  1. Remote process communication
  2. Remote Procedure Call
  3. Reliable Process communication
  4. Reliable Procedure communication
  

Question 291 :
In distributed file system, DNS stands for?

  1. Domain Name System
  2. Domain Name Server
  3. Directory name service
  4. Disk name system
  

Question 292 :
Replication model in which one replica is server replica and other follow the sever is___________.

  1. Master-Slave
  2. Client -Server
  3. Peer-to-peer
  4. Permanent
  

Question 293 :
In Erasure correction approach a missing packet is constructed from

  1. other successfully delivered packets
  2. last delivered packet
  3. first packet
  4. retransmitting packets
  

Question 294 :
If processes p and q both receive messages m and m', then p receives m before m' if and only if q receives m before m'.The order delivery is called______________

  1. Absolute ordering
  2. Consistent ordering
  3. Causal ordering
  4. FIFO ordering
  

Question 295 :
Rebooting as a practical recovery technique requires that components are largely

  1. coupled in the sense that there are dependencies between different components.
  2. coupled in the sense that there are no dependencies between different components.
  3. decoupled in the sense that there are few or no dependencies between different components
  4. decoupled in the sense that there are dependencies between different components.
  

Question 296 :
If a process is executing in its critical section ____________

  1. any other process can also execute in its critical section
  2. no other process can execute in its critical section
  3. one more process can execute in its critical section
  4. every process can execute in its critical section
  

Question 297 :
A client gets a timestamp of 4:12:30.500 from a time server. The elapsed time between the request and response was 20 msec (0.020 sec). The current time on the client is 4:12:30.510. Using Cristian’s algorithm, what is the time set to on the client?

  1. 0.175347222
  2. 0.175347222
  3. 0.17537037
  4. 0.17537037
  

Question 298 :
RMI uses stub and skeleton for communication with the ________

  1. client
  2. remote
  3. server
  4. any
  

Question 299 :
Which Distributed System Model deals with Communication?

  1. Security Model
  2. Fault Model
  3. Interaction Model
  4. Architecture Model
  

Question 300 :
Serializability is the term, used in ______ characteristic of distributed system

  1. scalability
  2. concurrency
  3. fault tolerance
  4. openness
  
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