Advance Operating System MCQ - QPkendra

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Question 1 : The transparency that enables multiple instance of resources to be used is called ____

  1. Replication transparency
  2. Scaling transparency
  3. Concurrency transparency
  4. Performance trasparency
    

Question 2 : The interconnection topologies are implemented using _________ as a node.

  1. Control unit
  2. Microprocessor
  3. Microprocessor or processing unit
  4. Processing unit
    

Question 3 : ------- is a data structure which has all the information that is needed by a scheduler to schedule a particular process.

  1. Uarea
  2. Process Table
  3. Process Control Block
  4. Region Table
    

Question 4 : Number of instances of U-Area instances is/are

  1. N-Per Process Wise
  2. 1- Process in Run State
  3. 3-Region Triplet Wise
  4. Depends on Context Switch
    

Question 5 : In which OS, a user will have a single system image

  1. Network OS
  2. Distributed OS
  3. Real time OS
  4. Desktop OS
    

Question 6 : Logical extension of computation migration is

  1. System migration
  2. Thread migration
  3. Process migration
  4. Data migration
    

Question 7 : Memory management technique in which system stores and retrieves data from secondary storage for use in main memory is called

  1. Fragmentation
  2. Paging
  3. Mapping
  4. Page fault
    

Question 8 : _______ contains the metadata information like device number and the block number range for which this buffer holds the data.

  1. The buffer header
  2. Block List
  3. Inode List
  4. Super block List
    

Question 9 : __________ task is represented by three tuple Ti=(ei,di,gi)

  1. Periodic Task
  2. Sporadic Task
  3. Aperiodic Task
  4. Recursive Task
    

Question 10 : Process Region Table- Triplets are ____________

  1. Text, Data, Stack
  2. Text, Data, Heap
  3. Text, Code, Data
  4. Code, Process Table, Stack
    

Question 11 : Which one is not the characteristics of Real Time OS?

  1. Reliability
  2. Performance
  3. Hardware Problem
  4. Scalability
    

Question 12 : Inter process communication can be done through __________.

  1. System calls
  2. Mails
  3. Message passing
  4. Traps
    

Question 13 : The TestAndSet instruction is executed:

  1. After a particular process
  2. Periodically
  3. Atomically
  4. Before a particular process
    

Question 14 : Time required to synchronous switch from the context of one thread to the context of another thread is called

  1. Threads fly-back time
  2. Jitter
  3. Context switch time
  4. Soft real Time
    

Question 15 : Consider the two statements. A. A network operating system, the users access remote resources in the same manner as local resource. B. In a distributed operating system, the user can access remote resources either by logging into the appropriate remote machine or transferring data from the remote machine to their own machine. Which of the statement is true?

  1. A=True B=True
  2. A=True B=False
  3. A=False B=True
  4. A=False B=False
    

Question 16 : The algorithms for reading and writing disk blocks use the algorithm _____ to allocate buffers from the pool.

  1. bread
  2. bwrite
  3. getblk
  4. breada
    

Question 17 : To access the services of operating system, the interface is provided by the ___________

  1. Library
  2. API
  3. Assembly instructions
  4. System calls
    

Question 18 : ________ Computing refers to the applications and services that run on a distributed network using virtualization resources.

  1. Distributed
  2. Cloud
  3. Soft
  4. Parallel
    

Question 19 : ------are the software through which, the kernel of a computer communicates with different hardware, without having to go into the details of how the hardware works.

  1. CPU registers
  2. Memory Control Information
  3. Device Driver
  4. Scheduler
    

Question 20 : In which architecture the main memory is located at a central location such that it is equidistant from all the processors in terms of access time.

  1. NUMA architecture
  2. UMA architecture
  3. NORMA architecture
  4. Middleware
    

Question 21 : The kernel also maintains a free list of buffers. The free list is a ---------

  1. Doubly circular list of buffers
  2. Doubly Linked List of buffers
  3. Circular list of buffers
  4. Simple Linked List of buffers
    

Question 22 : The technology used to distribute service requests to resources is referred to as:

  1. Load performing
  2. Load shedding
  3. Load balancing
  4. Load scheduling
    

Question 23 : Which building block primitive of UNIX allows a stream of data to be passed from reader process and writer process?

  1. Standard Input
  2. Standard Output
  3. PIPE
  4. Standard error
    

Question 24 : A processor that continuously tries to acquire the locks, spinning around a loop till it reaches its success, is known as

  1. Store locks
  2. Spin locks
  3. Store operational
  4. Link locks
    

Question 25 : Which of the following statements is true for time-sharing system?

  1. Only one process can be active on the system
  2. Aims to minimize user response time
  3. Other processes cannot be executed when process waits for I/O
  4. The execution of the process will always be in a time constraints
    
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