Computer Distributed Computing (CDC) MCQ's




Question 931 :
In Release consistency model: ____________ is used by a process to tell the system that it has just exited a critical section and ________ is used by a process to tell the system that it is about to enter a critical section

  1. acquire, release
  2. release, acquire
  3. entry, exit
  4. entry, out
  

Question 932 :
Load balancing is the way of distributing _______across a set of processors, which is connected to a______.

  1. Load units, network
  2. Task, network
  3. Process, LAN
  4. Task, LAN
  

Question 933 :
The file once created can not be changed is called ___________

  1. Rigid file
  2. REX file
  3. Immutable file
  4. Robust file
  

Question 934 :
The following is the desirable feature of global scheduling algorithm:

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

Question 935 :
Basis for communication in middleware based operating system is________.

  1. Files
  2. Model specific
  3. Messages
  4. Shared memory
  

Question 936 :
A gateway for the server side object.

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

Question 937 :
The type of communication where a message that has been submitted for transmission is stored by the communication system as long as it takes to deliver it to the receiver

  1. Transient communication
  2. Persistent communication
  3. Synchronous communication
  4. Asynchronous communication
  

Question 938 :
Compared to single sharing system, the distribute system has higher________and __________

  1. noise and irrelevance
  2. reliability and availability
  3. bottleneck and single point of failure
  4. noise and bottleneck
  

Question 939 :
An additional time that is used to deliver the service of a system or multiple executions of an operation is ______.

  1. Information redundancy
  2. Time redundancy
  3. Physical redundancy
  4. Data Redundancy
  

Question 940 :
The middleware cannot deliver a message due to a

  1. Transmission interrupt
  2. Message failure
  3. Invalid Recipt
  4. Missing Field
  

Question 941 :
What are characteristic of Network Operating Systems?

  1. Users are aware of multiplicity of machines
  2. They are transparent
  3. They are coherent
  4. Users are unaware of multiplicity of machines
  

Question 942 :
The Ricart - Agrawala distributed mutual exclusion algorithm is:

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

Question 943 :
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 944 :
___________ acts between name servers and their clients.

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

Question 945 :
Tasks are scheduled to improve ____-in task assignement approach

  1. concurrecy
  2. performance
  3. reliability
  4. replication
  

Question 946 :
Middleware forms a layer between

  1. application and distributed platforms
  2. several individual computers
  3. application and client
  4. server and client
  

Question 947 :
Which one in the given list is not a middleware layer protocol?

  1. RPC
  2. UDP
  3. RMI
  4. CORBA
  

Question 948 :
In distributed system, each processor has its own ___________

  1. local memory and clock
  2. Battery
  3. Remote Memory
  4. Display
  

Question 949 :
A ___ is a software module consisting of one or more procedures, an initialization sequence, and local data.

  1. monitor
  2. message passing
  3. strong semaphore
  4. binary semaphore
  

Question 950 :
Hide that a resource is replicated is known as___________transparency

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

Question 951 :
Isosynchronous is a type of which communication _____.

  1. MOM
  2. IPC
  3. Stream Oriented Communication
  4. Group Communication
  

Question 952 :
What is not true about parallel computing

  1. A problem is broken in to discrete parts that can be solved concurrently
  2. Each part is further broken down to a series of instructions
  3. Instructions from each part execute simultaneously on different processor
  4. hardware limitation on the transmission speed
  

Question 953 :
The collection of protocols used in a particular system is called a protocol suite or

  1. Protocol collector
  2. Protocol list
  3. Protocol stack
  4. Protocol queue
  

Question 954 :
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. None of the mentioned
  

Question 955 :
_______is a property to consider in faulty distributed environments

  1. Replication
  2. recovery
  3. concurrency
  4. Consistency
  

Question 956 :
Select which state is true for the Distributed File System i) is simply a classical model of a file system distributed across multiple machines. The purpose is to promote sharing of dispersed files. ii)A file system provides a service for clients. The server interface is the normal set of file operations: create, read, etc. on files.iii)The resources on a particular machine are local to itself.Resources on other machines are remote.

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

Question 957 :
_______is the ability of system to provide a service, even in the presence of errors

  1. Replication
  2. Fault tolerance
  3. concurrency
  4. Consistency
  

Question 958 :
Two clocks are said to be synchronized at a particular instance of time if the difference in time values of the two clocks is less than some specified constant. The difference in time values of two clocks is called ___________

  1. Clock Frequency
  2. Clock drift
  3. Clock skew
  4. Clock Ticks
  

Question 959 :
In distributed systems, election algorithms assumes that ____________

  1. a unique priority number is associated with each active process in system
  2. there is no priority number associated with any process
  3. priority of the processes is not required
  4. process work without number
  

Question 960 :
Asymmetric multiprocessing systems of the computer system use

  1. master relationship
  2. slave relationship
  3. master slave relationship
  4. serial processing
  
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