Computer Science Mock Test NET Exam (System Software and Compilers) - Part 09

This Quiz is posted with the sole aim of guiding the aspirants of UGC-NET /CSIR -NET Exam to the path of success. To sharpen the edges of your own intelligence and practice, in a structured and concrete manner to ensure you definite Success in your endeavor and will Pave your way for a successful career in Teaching (or) Research Profession . All the very best...... Knock the door of success......

1. 
   Which is the permanent database in the general model of compiler?
   
   
   
   
   1.  terminal table
   
   
   2.  reductions
   
   
   3.  identifier table
   
   
   4.  literal table
   
   
   
   
   
   
   
   
   


2. 
   The task of the lexical analysis is ____________.
   
   
   
   
   1.  to built a uniform symbol table
   
   
   2.  to built a literal table 
   
   
   3.  to built an identifier table
   
   
   4.  all of the above
   
   
   
   
   
   
   
   
   


3. 
   A hardware device that is capable of executing a sequence of instruction is called __________.
   
   
   
   
   1.  processor
   
   
   2.  CPU
   
   
   3.  ALU
   
   
   4.  CU
   
   
   
   
   
   
   
   
   


4. 
   The linker ____________.
   
   
   
   
   1.  is same as loader
   
   
   2.  is required to create a load module
   
   
   3.  is always used before programs are executed
   
   
   4.  user source code as input
   
   
   
   
   
   
   
   
   


5. 
   The translator is best described as __________.
   
   
   
   
   1.  an application software
   
   
   2.  a hardware component
   
   
   3.  a system software
   
   
   4.  none of the above
   
   
   
   
   
   
   
   
   


6. 
   Consider a system having m resources of the same type. These resources are shared by 3 processes A, B and C which have peak demands of 3, 4 and 6 respectively. For what value of m deadlock will not occur ?
   
   
   
   
   1.  10
   
   
   2.  13
   
   
   3.  12
   
   
   4.  11
   
   
   
   
   
   
   
   
   


7. 
   State an undesirable characteristic of each of the following criteria for measuring performance of an operating System __________.
   
   
   
   
   1.  Turn around time
   
   
   2.  Waiting time
   
   
   3.  All of the Above
   
   
   4.  None of the Above
   
   
   
   
   
   
   
   
   


8. 
   A computer cannot "boot" if it does not have the _______. 
   
   
   
   
   1.  loader
   
   
   2.  linker
   
   
   3.  assembler
   
   
   4.  operating system
   
   
   
   
   
   
   
   
   


9. 
   Four Jobs to be executed on a single processor system arrive at time 0 in the order A,B, C,D. Their burst CPU time requirements are 4,1,8,1 time units, respectively. The completion time of A under round robin scheduling with time slice of one time unit is _______.
   
   
   
   
   1.  8
   
   
   2.  10
   
   
   3.  9
   
   
   4.  7
   
   
   
   
   
   
   
   
   


10. 
    If the disk head is located initially at 32, find the number of disk moves required with FCFS if the disk queue of I/O blocks requests are 98, 37, 14, 124, 65, 67.
    
    
    
    
    1.  321
    
    
    2.  230
    
    
    3.  235
    
    
    4.  311
    
    
    
    
    
    
    
    
    

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