● A Database Management System(DBMS) consists of a collection of interrelated data and a collection of __(71)__ to access to that data.

（71）A．programs      

B．memory      

C．space      

D．password

● The basic units of a computer sysiem are as follows: __(72)__.

（72）A．CPU, memory and disk        

B．CPU, input and output

C．CPU, memory and ALU      

D．CPU, memory and I/O system

● If IP address is 202.130.191.33 and subnet mask is 255.255.255.0, then subnet prefix is __(73)__.

（73）A．202.130.0.0    

B．202.0.0.0

C．202.130.191.33      

D．202.130.191.0

● During planning you sit down and estimate the time needed for each task and total them to come up with the project estimate. This duration is what you commit to complete the project. What is wrong with the scenario? __(74)__ .

（74）A．The team did not create the estimate and estimating tales too long using that method 

B．The team did not create the estimate and a network diagram was not used

C．The estimate is too long and should be created by management

D．The project estimate;should be the same as the customer's reqhired completion date

● A software requirements specification is that __(75)__.

（75）A．a rough list of things that the proposed software ought to do

B．a precise list of things that the proposed software ought to do

C．a formal list of things that the proposed software must do

D．an estimate of the resouroes(time, money, personnel, etc) which will be required to construct the proposed software