Q15.Marks: +2.0UGC NET Paper 2: Computer Science 26th Nov 2021
Which of the following statement is true?
A. Control memory is part of the hardwired control unit.
B. Program control instructions are used to alter the sequential flow of the program.
C. The register indirect addressing mode for accessing memory operand is similar to displacement addressing mode.
D. CPU utilization is not affected by the introduction of Interrupts.
1.A
2.B✓ Correct
3.C
4.D
Solution
Control memory is part of the hardwired control unit:
FALSE. Control memory is not a part of Control Unit.
Program control instructions are used to alter the sequential flow of the program:
TRUE. Program control instructions modify or change the flow of a program. It is the instruction that alters the value of the program counter, due to which the execution of the program changes.
The register indirect addressing mode for accessing memory operand is similar to displacement addressing mode:
FALSE. In Register Indirect Addressing Mode, any selected register would include the address of an operand instead of the operand itself but this is not the case with Displacement Addressing Mode.
CPU utilisation is not affected by the introduction of Interrupts:
FALSE. CPU utilisation is affected by the introduction of interrupts because as soon as the interrupt occurs, CPU remains idle until and unless the interrupt is resolved or the next process comes for CPU utilisation.