Q.-521 .- The addressing mode which makes use of in-direction pointers is ______
(A) Offset addressing mode
(B) Relative addressing mode
(C) Indirect addressing mode
(D) None of the Above
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Answer: (C) Indirect addressing mode
Q.-522 .- Which addressing mode is most suitable to change the normal sequence of execution of instructions?
(A) Immediate
(B) Indirect
(C) Relative
(D) None of the Above
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Answer: (C) Relative
Q.-523 .- Which of the following is used as an intermediate to extend the processor BUS?
(A) Gateway
(B) Router
(C) Connector
(D) Bridge
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Answer: (D) Bridge
Q.-524 .- The method of accessing the I/O devices by repeatedly checking the status flags is_________
(A) Memory-mapped I/O
(B) Program-controlled I/O
(C) I/O mapped
(D) None of the Above
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Answer: (B) Program-controlled I/O
Q.-525 .- The process where in the processor constantly checks the status flags is called as _________
(A) Polling
(B) Inspection
(C) Reviewing
(D) None of the Above
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Answer: (A) Polling
Q.-526 .- The branch logic that provides decision making capabilities in the control unit is known as_______
(A) conditional transfer
(B) unconditional transfer
(C) Both (A) and (B)
(D) None of the above
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Answer: (B) unconditional transfer
Q.-527 .- Interrupts that are initiated by an instruction are_______
(A) internal
(B) external
(C) hardware
(D) software
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Answer: (D) software
Q.-528 .- Interrupts which are initiated by an I/O drive are ___________
(A) internal
(B) external
(C) Both (A) and (B)
(D) All of the above
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Answer: (B) external
Q.-529 .- Content of the program counter is added to the address part of the instruction in order to obtain the effective address is called_______
(A) relative address mode.
(B) index addressing mode.
(C) register mode.
(D) implied mode.
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Answer: (A) relative address mode.
Q.-530 .- A register capable of shifting its binary information either to the right or the left is called a_________
(A) parallel register.
(B) serial register.
(C) shift register.
(D) storage register.
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Answer: (C) shift register.
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