超星 - Fourth homework

单选题

Which is NOT a characteristic of RISC processor？

A. a highly optimized pipeline.
B. Register to register operations
C. a large number of general-purpose registers
D. a complexed instruction format

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单选题

In MESI protocol,if the initiating cache’s state is exclusive, the snooping cache’s state is.

A. modified
B. exclusive
C. invalid
D. shared

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单选题

The “MESI” means states of ____________ .

A. Modified, Exclusive, Stored and Inclusive
B. Modified, Expected, Shared and Interrupted
C. Modified, Exclusive, Shared and Invalid
D. Moved, Exchanged, Shared and Invalid

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单选题

The 8-bit twos complement 1001 0011 is stored in 16-bit. It’s equal to____.

A. 1000 0000 1001 0011
B. 0000 0000 1001 0011
C. 1111 1111 1001 0011
D. 1111 1111 0110 1101 11

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单选题

RAID level(s)_________make(s) use of an independent access technique for the purpose of high I/O request rate.

A. 2
B. 3
C. 4
D. all

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单选题

In reference to access time to a two-level memory, a _________ occurs if an accessed word is not found in the faster memory.

A. miss
B. hit
C. line
D. tag

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单选题

__________ involves the generation of partial products, one for each digit in the multiplier, which are then summed to produce the final product.

Addition
B. Subtraction
C. Multiplication
Division

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单选题

._________ is the fastest available storage device.

A. Main memory
B. Register storage
Cache
Disk

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单选题

.Which of the following is a control unit input?

A. IR
B. ALU flags
C. clock
D. all of the above

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单选题

Which of the following statements about RAID technology is true?

A. Enlarging capacity of disk system
B. improving transfer rate of system
C. improving reliability of disk system
D. all of above

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