Most operating systems have a standard set of（）to handle the processing of all input and output instructions.

A.spreadsheet  

B.control instructions

C.I/O operation 

D.data table

（）is used to model aggregates of information and the relationships these aggregates have to other.

A.Data flow diagram 

B.Entity relationship diagram

C.Sequence diagram 

D.Structure diagram

In software engineering the design phase is divided into（）.

A.system design and detailed design

B.computer design and program design

C.system design and hardware design

D.computer design and detailed design

（）must be between on-line deployment and final acceptance.

A.Detailed design 

B.Test run

C.Internal testing 

D.Contract signing

The difference value between Budgeted Cost for work Performed and Actual Cost for Work Performed is（）.

A.Cost Variance 

B.Schedule Variance

C.Earned Value 

D.Cost Performed Index

（ ）concerns a cycle of organizational activity : the acquisition of informat ion from one or more sources , the custodianship and the distribution of that information to those who need it , and its ultimate disposition through archiving or deletion.

A. Data management

B.Information manag ement

C.Content management

D.Knowledge management

System and application access control is to prevent（ ） access to systems and applications . access to information al nd appllcatlon system functions shall be restricted in accordance with the access control policy .

A.physical

B.special

C.authorized

D.unauthorized

The project management plan defines how the project is executed , monitored and controlled , and closed . it is progressively elaborated by updates,and controlled and approved through the perform integrated （  ）process.

A.Cost control

B.Schedule control

C.Change control

D.Risk control

Change control within information technology （ IT ） systems is a formal process used to ensure that changes to product or system are introduced in a controlled and coordinated manner . It（ ）the possibility that unnecessary changes will be introduced to a system without forethought.

A.adds

B.removes

C.produces

D.reduces

（ ）seeks to build confidence that a future output or an unfinished output,also known as work in progress will be completed in a manner that meet the specified requirements and expectations.

A.Auality assurance

B.Product assurance

C.Service assurance

D.Output assurance

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