The following data regarding purchases and sales of a commodity were taken from the related perpetual inventory account:

You have a server named Server1 that runs Windows Server 2003 Service Pack 2 (SP2).Users report that it takes a long time to open shared files on Server1. Users do not report this performance problem when they open files on other servers.You notice the following performance statistics on Server1:You need to optimize the performance of Server1.What should you do？（）

A. Add more ram.

B. Upgrade the processor.

C. Increase the size of the PageFile.

D. Disable Data Execution Prevention (DEP).

Which of the following are data layer categories to be displayed on ECDIS ________．

A.ECDIS warnings and messages

B.Hydrographic Office data

C.Notice to Mariners information

D.All of the above

A.T1

B.ADSL

C.SDSL

D.OC-3

A.XML

B.BLOB

C.DOUBLE

D.DBCLOB

To control and manage processes, which of the following data structures should be set up？

A．PCT

B．PCB

C．PCM

D．PCL

A.Session

B.Network

C.Data link

D.Transport

A.A unique index

B.A composite index

C.A check constraint

D.A generated column

A.Summarized queries

B.Granular transactions

C.Voluminous historical data

D.Heterogeneous data sources

A.Search and seizure

B.Data protection

C.Engagement

D.Evidence

A．Gathering secondary data is costly．

B．Collecting secondary data is time consuming．

C．Few sources exist for secondary dA

D．It is not accurate enough．

A.Data content and backup

B.Integrity and security of data

C.Authentication of user access

D.Classification of data elements