81. ____________ is a special purpose dedicated processor that is designed specially designed for data transfer in network:
Correct answer: (B)
Data Communication Processor
82. ____________ processor has to check continuously till device becomes ready for transferring the data:
Correct answer: (A)
Interrupt-initiated I/O
83. Interrupt-driven I/O data transfer technique is based on 95;_________ concept:
Correct answer: (A)
On demand processing
84. Which technique helps processor to run a program concurrently with I/O operations:
Correct answer: (A)
Interrupt driven I/O
85. 3 types of exceptions are:
Correct answer: (D)
All of these
86. Which exception is also called software interrupt:
Correct answer: (B)
System calls
87. User programs interact with I/O devices through:
Correct answer: (A)
Operating system
88. Which table handle store address of interrupt handling subroutine:
Correct answer: (A)
Interrupt vector table
89. Which technique is used that identifies the highest priority resource by means of software:
Correct answer: (B)
Polling
90. ____________ interrupt establishes a priority over the various sources to determine which request should be entertained first:
Correct answer: (A)
Priority interrupt