Computer Distributed Computing (CDC) MCQ's




Question 811 :
Which of the following is not a pipeline stage

  1. Operand fetch
  2. Execute
  3. Pipeline Flush
  4. Memory access
  

Question 812 :
In ____ Any read on a data item x returns a value corresponding to the results of the most recent write on x

  1. Strict consistency
  2. Linear consistency
  3. Sequential consistency
  4. parallel consistency
  

Question 813 :
Which of the service is not offered by middleware ?

  1. Persistance service
  2. Translation service
  3. Querying service
  4. Concurrency service
  

Question 814 :
A typical _________ program creates some remote objects, makes references to these objects accessible, and waits for clients to invoke methods on these objects.

  1. Server
  2. Client
  3. Thread
  4. Concurrent
  

Question 815 :
DOS gives the view of ___________ System.

  1. Multi-processor
  2. Uniprocessor
  3. Multi-controller
  4. Virtual Uniprocessor
  

Question 816 :
Characteristics of threads are ______.

  1. Parallelism, blocking system calls
  2. No parallelism, blocking system calls
  3. Parallelism, non blocking system calls
  4. No parallelism, non blocking system calls
  

Question 817 :
In the following cases non – preemptive scheduling occurs?

  1. When a process switches from the running state to the ready sta
  2. When a process goes from the running state to the waiting state
  3. When a process switches from the waiting state to the ready sta
  4. shortest job scheduling
  

Question 818 :
Transient communication with synchronization after the request has been fully processed is also widely used in

  1. IPC
  2. RPC
  3. MPC
  4. Message Passing
  

Question 819 :
In ____ only one process at a time is allowed into its critical section, among all processes that have critical sections for the same resource.

  1. Mutual Exclusion
  2. Synchronization
  3. Deadlock
  4. Starvation
  

Question 820 :
In ____- algorithms collect state information and react to system state if it changed

  1. Static load balancing
  2. Dynamic load balancing
  3. constant load balancing
  4. single load balancing
  

Question 821 :
Multiprogramming systems:

  1. Are easier to develop than single programming systems
  2. Execute each job faster
  3. Execute more jobs in the same time period
  4. Are used only one large mainframe computers
  

Question 822 :
The Stub - Skeleton is used in__________________ Middleware.

  1. RMI
  2. RPC
  3. MOM
  4. web service
  

Question 823 :
What of the following system is not multi-processor system?

  1. A system with multiple CPU, each CPU contains a single core.
  2. A system with a single CPU that has two core.
  3. A system with multiple CPU, each CPU contains two cores.
  4. A system with a single CPU that has a single core.
  

Question 824 :
Which of the following is the drawback of static scheduling algorithm.

  1. Maximize the total processing time
  2. Maximum extent of resource utilization
  3. Get maximum throughput
  4. To adjust the system fluctuation
  

Question 825 :
In ____________ all processes see only those memory reference operations in the correct order that are potentially causally related

  1. Continuous Consistency
  2. Causal Consistency
  3. Sequential Consistency
  4. Eventual Consistency
  

Question 826 :
State which of the following holds true for Load Sharing approach in distributed system Statement 1: It use Double threshold as process transfer policy Statement 2: It calculate CPU utilization to estimate the load of a node under load estimation policy

  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 827 :
A system can easily add more users and resources to the system without any noticeable loss of performance is called ______

  1. Geographical scalability
  2. Size scalability
  3. Administative scalability
  4. Financial scalability
  

Question 828 :
The ______________ is used to store a constant value that is decided based on the frequency of oscillation of the quartz crystal

  1. Counter register
  2. Quartz crystal
  3. Constant register
  4. ALU
  

Question 829 :
In global google system index of links is also maintained to keep track of

  1. links to a given site
  2. links of user
  3. links to programs
  4. links of user queries
  

Question 830 :
Which file system implements the most stringent semantics of file sharing

  1. Unix Semantics
  2. Session Semantics
  3. Transaction Semantics
  4. Network Semantics
  

Question 831 :
What is UTC ?

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

Question 832 :
When resources have multiple instances ________ is used for deadlock Avoidance.

  1. Bankers algorithm
  2. Resource Allocation Graph
  3. Semaphores
  4. Phishing
  

Question 833 :
____________ is used to store the distributed objects permanently on to the data store

  1. Naming service
  2. Persistance service
  3. Messaging service
  4. Security service
  

Question 834 :
How the processes are organized in a ring structure, in case of token passing approach of distributed systems?

  1. Logically
  2. Physically
  3. Both logically and physically
  4. Randomly
  

Question 835 :
In GFS, Chunk replicas are created for three reasons: ___________________

  1. chunk creation, re-replication, and rebalancing
  2. chunk deletion, re-replication, and rebalancing
  3. chunk creation, re-replication, and resharing
  4. chunk creation, chunk deletion, and rebalancing
  

Question 836 :
The segment of code in which the process may change common variables, update tables, write into files is known as ____________

  1. program
  2. critical section
  3. non – critical section
  4. synchronizing
  

Question 837 :
What are the advantages of file replication?

  1. Improves availability - performance
  2. Decreases performance
  3. Decreases availability
  4. Increases Cost
  

Question 838 :
Synchronization of complex stream data deals with-

  1. maintaining temporal relations between streams
  2. ensuring receiver receives data in the same order sent.
  3. sender and receiver being running at the same time
  4. receiving data without errors
  

Question 839 :
Network operating system runs on ___________

  1. Server
  2. Client
  3. Every system in the network
  4. Network Agent
  

Question 840 :
The high availability - load balancing are the key features of _________________________.

  1. Cluster computing
  2. Grid computing
  3. Centralized computing
  4. Single Computing
  
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