EPISODE-240-Q.-2051 .- An interface that provides I/O transfer of data directly to and form the memory unit and peripheral is termed as________
(A) DDA
(B) Serial interface
(C) Direct Memory Access (DMA)
(D) None of the Above

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Answer: (C) Direct Memory Access (DMA)

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EPISODE-240-Q.-2052 .- A basic instruction that can be interpreted by computer generally has ________
(A) An operand and an address
(B) decoder and an accumulator
(C) Sequence register and decoder
(D) None of the Above

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Answer: (A) An operand and an address

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EPISODE-240-Q.-2053 .- The load instruction is mostly used to designate a transfer from memory to a processor register known as_________
(A) Accumulator
(B) Instruction Register
(C) Program counter
(D) Memory address Register

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Answer: (A) Accumulator

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EPISODE-240-Q.-2054 .- The communication between the components in a microcomputer takes place via the address and ______
(A) I/O bus
(B) Data bus
(C) Address bus
(D) None of the Above

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Answer: (B) Data bus

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EPISODE-240-Q.-2055 .- The operation executed on data stored in registers is called_______
(A) Macro-operation
(B) Micro-operation
(C) Bit-operation
(D) None of the Above

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Answer: (B) Micro-operation

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EPISODE-240-Q.-2056 .- Which register keeps tracks of the instructions in the program stored in memory?
(A) Address Register
(B) Index Register
(C) Program Counter
(D) None of the Above

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Answer: (C) Program Counter

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EPISODE-240-Q.-2057 .- In which addressing mode the operand is given explicitly in the instruction?
(A) Absolute
(B) Immediate
(C) Indirect
(D) Direct

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Answer: (B) Immediate

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EPISODE-240-Q.-2058 .- When necessary, the results are transferred from the CPU to main memory by _______
(A) I/O devices.
(B) CPU.
(C) Shift registers.
(D) None of the Above.

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Answer: (C) Shift registers.

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EPISODE-240-Q.-2059 .- A group of bits that tell the computer to perform a specific operation is known as_______
(A) Instruction code
(B) Micro-operation
(C) Accumulator
(D) Register

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Answer: (A) Instruction code

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EPISODE-240-Q.-2060 .- The average time required to reach a storage location in memory and obtain its contents is called_____.
(A) Latency time.
(B) Access time.
(C) Turnaround time.
(D) Response time.

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Answer: (B) Access time.

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EPISODE-240-Q.-2061 .- 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

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EPISODE-240-Q.-2062 .- 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

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EPISODE-240-Q.-2063 .- 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

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EPISODE-240-Q.-2064 .- 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

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EPISODE-240-Q.-2065 .- 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

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EPISODE-240-Q.-2066 .- 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

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EPISODE-240-Q.-2067 .- Interrupts that are initiated by an instruction are_______
(A) internal
(B) external
(C) hardware
(D) software

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Answer: (D) software

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EPISODE-240-Q.-2068 .- 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

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EPISODE-240-Q.-2069 .- 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.

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EPISODE-240-Q.-2070 .- 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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