allows anyone to decode the transmission
allows only the correct sender to decode the data
allows only the correct receiver to decode the data
does not encode the data before transmitting it
✅ The correct answer is C.
Computer
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92. The instruction register
is a hardware memory device which denotes the location of the current instruction being executed.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
contains the address of the memory location that is to be read from or stored into.
contains a copy of the designated memory location specified by the MAR after a “read” or the new contents of the memory prior to a “write”.
✅ The correct answer is B.
93. In which type of the following OS, the response time is very crucial.
Network Operating System
Real Time Operating System
Batch Operating System
Unix Operating System
✅ The correct answer is B.
94. An operating system is a program or a group of programs that
Helps in checking the spelling of Word
Maintain the relationship in Database
Manages the resources of the Computer
Performs the calculations of cells in Excel
✅ The correct answer is C.
95. Block or buffer caches are used
to improve disk performance
to handle interrupts
to increase the capacity of main memory
to speed up main memory read operation
✅ The correct answer is A.
96. Which of the following is not true about documentation?
Documentation, of a system, should be as clear and direct as possible
Documentation increases the maintenance time and cost
Documentation gives better understanding of the problem
All of the above
✅ The correct answer is B.
97. The Memory Buffer Register (MBR)
is a hardware memory device which denotes the location of the current instruction being executed.
is a group of electrical circuits (hardware), that performs the intent of instructions fetched from memory.
contains the address of the memory location that is to be read from or stored into.
contains a copy of the designated memory location specified by the MAR after a “read” or the new contents of the memory prior to a “write”.
✅ The correct answer is D.
98. Which of the following is true about pseudocode
A machine language
An assembly language
A high-level language
None of the above
✅ The correct answer is D.
99. Seeks analysis
is used for analyzing paging problems
is used for analyzing device busy problems
is used for analyzing control-unit busy problems
is only shown on real-time displays
✅ The correct answer is B.
100. The state transition initiated by the user process itself in an operating system is
block
dispatch
wake up
timer run out
✅ The correct answer is A.