An expert system differs from a database program in that only an expert system ____________

Choice the correct propositions:
1. Evidence of fingerprint expert is substantive evidence.
2. Evidence of fingerprint expert can be used only to corroborate some items of substantive evidence which are otherwise on record.
3. Evidence of fingerprint expert is not substantive evidence.
4. Evidence of fingerprint expert is admissible in all circumstances as expert evidence.

A

1 and 2 are true

B

2 and 3 are true

C

3 and 4 are true

D

2 and 4 are true

An expert system differs from a database program in that only an expert system:

A

contains declarative knowledge

B

contains procedural knowledge

C

features the retrieval of stored information

D

expects users to draw their own conclusions

E

None of the above

You are the administrator of a SQL Server 2000 computer. The server contains a database named FinanceData that is used by a client/server application. Each employee has a SQL Server login that the application uses to access the server.Your company hires a new employee named Andrew. You create a SQL Server login named Andrew. You also create a database user named Andrew in the database and grant the database user full permissions in the database.Whenever Andrew runs the client/server application, he receives the following error message: "Invalid object name." Andrew also reports that he cannot access the database by using the application.You need to ensure that Andrew can use the application. Which Transact-SQL statement should you execute?

A

EXEC sp_defaultdb 'Andrew','FinanceData'

B

GRANT ALL ON FinanceData TO Andrew

C

EXEC sp_addlogin 'Andrew'

D

EXEC sp_grantdbaccess 'FinanceData','Andrew'GOsp_addrolemember 'db_datareader','Andrew'

The following question is based on the given data for an examination. A. Candidates appeared 10500 B. Passed in all the five subjects 5685 C. Passed in three subjects only 1498 D. Passed in two subjects only 1250 E. Passed in one subject only 835 F. Failed in English only 78 G. Failed in Maths only 275 H. Failed in Physics only 149 I. Failed in Chemistry only 147 J. Failed in Biology only 221 How many candidates passed in at least four subjects ?

A

6555

B

5685

C

1705

D

870

Database ____ which is the logical design of the database, and the database _ which is a snapshot of the data in the database at a given instant in time.

A

Instance, Schema

B

Relation, Schema

C

Relation, Domain

D

Schema, Instance

You are the database administrator for a financial services company. Employees enter data 24 hours a day into a SQL Server 2000 database. These employees report slower response times when new account information is gathered from branch offices and added to the database. You currently use the following BULK INSERT statement to add the account information.BULK INSERT finance.dbo.customersFROM 'd:bulkaccts143_10142000.txt'WITH DATAFILETYPE = 'char', FIELDTERMINATOR = 't', ROWTERMINATOR = 'n', TABLOCK You want to ensure that response times do not slow when new account information is added to the database. What should you do?

A

Add the BATCHSIZE option to the BULK INSERT statement, and then set the option equal to 10 percent of the number of rows to be loaded.

B

Add the ROWS_PER_BATCH option to the BULK INSERT statement, and then set the option equal to 10 percent of the number of rows to be loaded.

C

Drop the indexes for the Customers table before the data load, and then re-create the indexes after the data load is complete.

D

Remove the TABLOCK option from the BULK INSERT statement.

You are the database administrator of a SQL Server 2000 computer. The server contains your company's Accounts database. Hundreds of users access the database each day.Because you have had power interruptions in the past, you want to protect the physical integrity of the Accounts database. You do not want to slow down server operations.What should you do?

A

Create a database maintenance plan to check database integrity and make repairs each night.

B

Enable the torn page detection database option for each database.

C

Disablewrite caching on all disk controllers.

D

Ensure that write caching disk controllers have battery backups.

A knowledge engineer has the job of extracting knowledge from an expert and building the expert system knowledge base.

A

True

B

False

In an enterprise-class database system, business users interact directly with database applications, which directly access the database data.

A

True

B

False

In an Enterprise-class database system, business users interact directly with database applications that interact with the DBMS, which directly accesses the database data.

A

True

B

False