Questions 201 to 210
201.
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When a large number of registers is included in the CPU, it is most efficient to connect them through a ______.
(a) ALU (b) Memory Register (c) STACK
(d) QUEUE (e) Bus system.
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The register that keeps track of the address of next instruction to be executed is ______ .
(a) AC (b) PC (c) IR (d) AR (e) DR.
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The correspondence between the main memory blocks and those in the cache is specified by _________.
(a) Miss penalty (b) Replacement algorithms (c) Hit rate
(d) Page fault (e) Mapping functions.
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Which one of the following can be called as a peripheral?
(a) Control unit (b) Arithmetic unit (c) Speaker
(d) Logic unit (e) Main memory.
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The set of physical addresses is called
(a) Disk Space (b) Address Space (c) Pages
(d) Frames (e) Location.
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The device that is allowed to initiate data transfer on the bus is called ___________.
(a) Bus master (b) Bus arbitration (c) Bus cycle
(d) Bus request (e) Parallel bus.
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The DMA transfer technique where transfer of one word data at a time is called ______.
(a) Cycle stealing (b) Memory stealing (c) Hand-shaking
(d) Inter-leaving (e) Bus stealing.
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______ interface is used to connect the processor to I/O devices that require transmission of data one bit at a time.
(a) Parallel (b) Serial (c) Output (d) Input (e) Bus.
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In based addressing mode, instruction contains ________.
(a) Base address (b) Displacement (c) Absolute address
(d) Relative address (e) Indirect address.
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A hand-shake based protocol for data transfer is an example of ______ type of data transfer.
(a) Synchronous (b) Asynchronous (c) Serial
(d) Parallel (e) Indirect.
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Answers
201.
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Answer : (a)
Reason : All registers in a CPU are connected through ALU..
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Answer : (b)
Reason : Program Counter contains the address of the next instruction to be executed..
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Answer : (e)
Reason : The corresponding between the main memory blocks and those in the cache is specified by a mapping function, because the basic characteristic of cache memory is fast access time. Therefore, very little or no time must be wasted when searching for words in the cache.
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Answer : (c)
Reason : Speakers can be called as a peripheral as all others are part of the system.
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Answer : (b)
Reason : The collection of address spaces in a physical memory is called address space.
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Answer : (a)
Reason : The Bus master is allowed to initiate data transfer on the bus.
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Answer : (a)
Reason : Transfer of one word data at a time using DMA transfer technique is called Cycle Stealing.
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Answer : (b)
Reason : Serial interface transfers one bit at a time, whereas others can handle more than one bit.
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Answer : (b)
Reason : In a based addressing mode the displacement is the address field.
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Answer : (b)
Reason : Asynchronous data transfer
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