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发布时间：2006-06-27 07:04     点击：

(57) The CPU is composed of two components,which are

arithmetic logic unit and controller  

memory and controller 

arithmetic logic unit and memory 

controller and storage

Items 58 and 59 are based one the following hash table.

 

Hash function is:  h(key) = key mod 13

Collisions are solved by using open addressing, linear probing.

(58) Load factor α of the hash table is approximately

A) 0.28        B) 0.35         C) 0.54          D) 0.71

(59) How many key comparisons are needed in searching for key value 38?

A) 1  　        B) 2  　    　   C) 3           D) 4

(60) Which of the following operations belongs to message passing?

A) read and write     B) save and receive

C) wait and signal     D) P and V

(61) If file A has the capability of 724,the same group’s users of file A may do

A) read A only    B) write A  C) execute A     D) non-operation

(62) In which phase of the software engineering process is the Software Requirements Specification developed?

A) definition phase            B) engineering 

C) maintenance                D) development phase

(63) The prototyping method is a dynamic design process,which requires people who use prototyping method to have the following capability of

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